After upgrading the Linux kernel on Ubuntu (via sudo apt upgrade) to a newer version (in my case 6.17.0-14-generic), Wi-Fi stopped working. The laptop uses an Intel Wi-Fi 6E AX211 adapter with the iwlwifi driver. The device was detected by PCI tools, but the Wi-Fi interface was not usable and the device showed as UNCLAIMED in lshw.

Hardware / detection output:

aeart@aeart-ThinkBook-16-G8-IAL:~$ lspci | grep -i network
00:14.3 Network controller: Intel Corporation Device 7740
aeart@aeart-ThinkBook-16-G8-IAL:~$ lspci -knn | grep -iA2 net
00:14.3 Network controller [0280]: Intel Corporation Device [8086:7740]
 Subsystem: Intel Corporation Device [8086:0094]
 Kernel modules: iwlwifi
--
00:1f.6 Ethernet controller [0200]: Intel Corporation Device [8086:57a1]
 DeviceName: To Be Filled by O.E.M.
 Subsystem: Lenovo Device [17aa:3802]
aeart@aeart-ThinkBook-16-G8-IAL:~$ sudo lshw -class network
[sudo] password for aeart: 
  *-network:0 UNCLAIMED     
       description: Network controller
       product: Intel Corporation
       vendor: Intel Corporation
       physical id: 14.3
       bus info: pci@0000:00:14.3
       version: 00
       width: 64 bits
       clock: 33MHz
       capabilities: pm msi pciexpress msix cap_list
       configuration: latency=0
       resources: iomemory:480-47f memory:48192c4000-48192c7fff
  *-network:1
       description: Ethernet interface
       product: Intel Corporation
       vendor: Intel Corporation
       physical id: 1f.6
       bus info: pci@0000:00:1f.6
       logical name: eno0
       version: 00
       serial: 84:ba:59:b6:c2:cc
       capacity: 1Gbit/s
       width: 32 bits
       clock: 33MHz
       capabilities: pm msi bus_master cap_list ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd 1000bt-fd autonegotiation
       configuration: autonegotiation=on broadcast=yes driver=e1000e driverversion=6.17.0-14-generic firmware=0.1-4 latency=0 link=no multicast=yes port=twisted pair
       resources: irq:146 memory:98200000-9821ffff
  *-network
       description: Ethernet interface
       physical id: 12
       bus info: usb@3:3
       logical name: enx6a1febda5995
       serial: 6a:1f:eb:da:59:95
       capabilities: ethernet physical
       configuration: autonegotiation=off broadcast=yes driver=rndis_host driverversion=6.17.0-14-generic firmware=RNDIS device ip=192.168.5.60 link=yes multicast=yes port=twisted pair

Kernel log / error: dmesg showed firmware load failures and the driver explicitly said that the required firmware versions were missing:

aeart@aeart-ThinkBook-16-G8-IAL:~$ sudo dmesg | grep iwlwifi
[sudo] password for aeart: 
[    2.462594] iwlwifi 0000:00:14.3: enabling device (0000 -> 0002)
[    2.515914] iwlwifi 0000:00:14.3: Detected crf-id 0x400410, cnv-id 0x80930 wfpm id 0x80005b20
[    2.515930] iwlwifi 0000:00:14.3: PCI dev 7740/0094, rev=0x461, rfid=0x2010d000
[    2.515935] iwlwifi 0000:00:14.3: Detected Intel(R) Wi-Fi 6E AX211 160MHz
[    2.516006] iwlwifi 0000:00:14.3: Direct firmware load for iwlwifi-bz-b0-gf-a0-100.ucode failed with error -2
[    2.516195] iwlwifi 0000:00:14.3: Direct firmware load for iwlwifi-bz-b0-gf-a0-99.ucode failed with error -2
[    2.516231] iwlwifi 0000:00:14.3: Direct firmware load for iwlwifi-bz-b0-gf-a0-98.ucode failed with error -2
[    2.516233] iwlwifi 0000:00:14.3: no suitable firmware found!
[    2.516238] iwlwifi 0000:00:14.3: minimum version required: iwlwifi-bz-b0-gf-a0-98
[    2.516241] iwlwifi 0000:00:14.3: maximum version supported: iwlwifi-bz-b0-gf-a0-100
[    2.516243] iwlwifi 0000:00:14.3: check git://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git

I've just setup Kubuntu 25.10 for the first time, and there's a blank white box on the left of Quick Settings. How to fix it?

and for other ui theres this weird blanking untill mouse goes over/clicks it

I’m running Ubuntu 24.04 (GNOME) on a HiDPI laptop (14", 2880×1800) with display scaling set to 200% (2×). Native host applications scale correctly and behave as expected.

My laptop uses an Intel Core Ultra 5 225H processor, and Ubuntu 24.04 appears to be the only Ubuntu version that works reliably with this hardware. However, I need to work with ROS2 Humble, which officially supports Ubuntu 22.04. Since 22.04 does not work well on my hardware (wifi, display, and other hardware failures), I decided to use Distrobox to run Ubuntu 22.04 and ROS2 Humble inside a container.

While this setup works functionally, I’m facing persistent GUI scaling issues with applications launched from inside the container.

IssuesvObserved

1. All GUI applications launched from the Distrobox container behave as if the system is running at 1× scaling, even though the host is set to 2×:

2. GUI elements (icons, text, widgets) are extremely small

3. Cursor visibly shrinks when entering container windows

4. Happens consistently with ROS2 GUI tools such as:

   a. rqt

   b. rqt_graph

   c. turtlesim

The issue appears to affect all container GUI apps, not just ROS tools

Host GUI applications (Settings, Text Editor, etc.) behave normally.

Environment

1. Host OS: Ubuntu 24.04 (GNOME)

2. Hardware: HiDPI laptop (14", 2880×1800), Intel Core Ultra 225H

3. Display scaling: 200%

4. Sessions tested: X11 and Xorg

5. Container: Distrobox running Ubuntu 22.04

6. Applications tested: rqt, rqt_graph, turtlesim (Qt-based)

Is there a way to make it work reliably? Also, is this a known limitation or behavior when running GUI applications from containers (e.g., Distrobox) on GNOME with HiDPI scaling? Or should I use another method than containerization for my workflow? I am somewhat new to Linux so forgive if I have typed something stupid while describing my issue. I tried solving things using GPT but nothing helped.

I have found other questions about this command not working on the site but the errors emitted are not the same, at least in the several I looked at.

add-apt-repository fails when attempting to add repositories (several different ppas attempted)

The affected system is a virtual machine which started out as a clone of a physical PC. They have diverged over the years, and the physical PC does not have this problem.

$ sudo add-apt-repository ppa:ondrej/apache2
Traceback (most recent call last):
  File "/usr/bin/add-apt-repository", line 452, in <module>
    sys.exit(0 if addaptrepo.main() else 1)
                  ^^^^^^^^^^^^^^^^^
  File "/usr/bin/add-apt-repository", line 435, in main
    shortcut = handler(source, **shortcut_params)
               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3/dist-packages/softwareproperties/shortcuts.py", line 40, in shortcut_handler
    return handler(shortcut, **kwargs)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3/dist-packages/softwareproperties/ppa.py", line 89, in __init__
    if self.lpppa.publish_debug_symbols:
       ^^^^^^^^^^
  File "/usr/lib/python3/dist-packages/softwareproperties/ppa.py", line 133, in lpppa
    self._lpppa = self.lpteam.getPPAByName(name=self.ppaname)
                  ^^^^^^^^^^^
  File "/usr/lib/python3/dist-packages/softwareproperties/ppa.py", line 120, in lpteam
    self._lpteam = self.lp.people(self.teamname)
                   ^^^^^^^
  File "/usr/lib/python3/dist-packages/softwareproperties/ppa.py", line 111, in lp
    self._lp = login_func("%s.%s" % (self.__module__, self.__class__.__name__),
               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3/dist-packages/launchpadlib/launchpad.py", line 494, in login_anonymously
    return cls(
           ^^^^
  File "/usr/lib/python3/dist-packages/launchpadlib/launchpad.py", line 230, in __init__
    super(Launchpad, self).__init__(
  File "/usr/lib/python3/dist-packages/lazr/restfulclient/resource.py", line 511, in __init__
    self._wadl = self._browser.get_wadl_application(self._root_uri)
                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3/dist-packages/lazr/restfulclient/_browser.py", line 502, in get_wadl_application
    response, content = self._request(url, media_type=wadl_type)
                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3/dist-packages/lazr/restfulclient/_browser.py", line 441, in _request
    response, content = self._request_and_retry(
                        ^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3/dist-packages/lazr/restfulclient/_browser.py", line 400, in _request_and_retry
    response, content = self._connection.request(
                        ^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3/dist-packages/httplib2/__init__.py", line 1669, in request
    (response, new_content) = self._request(
                              ^^^^^^^^^^^^^^
  File "/usr/lib/python3/dist-packages/launchpadlib/launchpad.py", line 144, in _request
    response, content = super(LaunchpadOAuthAwareHttp, self)._request(
                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3/dist-packages/lazr/restfulclient/_browser.py", line 204, in _request
    return super(RestfulHttp, self)._request(
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3/dist-packages/httplib2/__init__.py", line 1421, in _request
    (response, content) = self._conn_request(conn, request_uri, method, body, headers)
                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3/dist-packages/httplib2/__init__.py", line 1343, in _conn_request
    conn.connect()
  File "/usr/lib/python3/dist-packages/httplib2/__init__.py", line 1135, in connect
    self.sock = self._context.wrap_socket(sock, server_hostname=self.host)
                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3.12/ssl.py", line 455, in wrap_socket
    return self.sslsocket_class._create(
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3.12/ssl.py", line 1042, in _create
    self.do_handshake()
  File "/usr/lib/python3.12/ssl.py", line 1320, in do_handshake
    self._sslobj.do_handshake()
ssl.SSLCertVerificationError: [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: self-signed certificate (_ssl.c:1000)

Here's the output of the command requested in a comment:

$ dig api.launchpad.net

; <<>> DiG 9.18.39-0ubuntu0.24.04.2-Ubuntu <<>> api.launchpad.net
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 57184
;; flags: qr rd ra; QUERY: 1, ANSWER: 2, AUTHORITY: 0, ADDITIONAL: 1

;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 65494
;; QUESTION SECTION:
;api.launchpad.net.     IN  A

;; ANSWER SECTION:
api.launchpad.net.  30  IN  A   185.125.189.224
api.launchpad.net.  30  IN  A   185.125.189.225

;; Query time: 23 msec
;; SERVER: 127.0.0.53#53(127.0.0.53) (UDP)
;; WHEN: Sat Feb 07 17:30:39 CST 2026
;; MSG SIZE  rcvd: 78

From the non-working virtual machine -

$ openssl s_client api.launchpad.net:443 </dev/null
CONNECTED(00000003)
depth=0 C = US, ST = California, L = San Jose, O = Netgear, OU = Home Consumer Products, CN = www.routerlogin.net, emailAddress = support@netgear.com
verify error:num=18:self-signed certificate
verify return:1
depth=0 C = US, ST = California, L = San Jose, O = Netgear, OU = Home Consumer Products, CN = www.routerlogin.net, emailAddress = support@netgear.com
verify return:1
---
Certificate chain
 0 s:C = US, ST = California, L = San Jose, O = Netgear, OU = Home Consumer Products, CN = www.routerlogin.net, emailAddress = support@netgear.com
   i:C = US, ST = California, L = San Jose, O = Netgear, OU = Home Consumer Products, CN = www.routerlogin.net, emailAddress = support@netgear.com
   a:PKEY: rsaEncryption, 2048 (bit); sigalg: RSA-SHA256
   v:NotBefore: Apr 15 10:13:07 2025 GMT; NotAfter: Apr 13 10:13:07 2035 GMT
---
Server certificate
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----
subject=C = US, ST = California, L = San Jose, O = Netgear, OU = Home Consumer Products, CN = www.routerlogin.net, emailAddress = support@netgear.com
issuer=C = US, ST = California, L = San Jose, O = Netgear, OU = Home Consumer Products, CN = www.routerlogin.net, emailAddress = support@netgear.com
---
No client certificate CA names sent
Peer signing digest: SHA256
Peer signature type: RSA-PSS
Server Temp Key: X25519, 253 bits
---
SSL handshake has read 1634 bytes and written 399 bytes
Verification error: self-signed certificate
---
New, TLSv1.3, Cipher is TLS_AES_256_GCM_SHA384
Server public key is 2048 bit
Secure Renegotiation IS NOT supported
Compression: NONE
Expansion: NONE
No ALPN negotiated
Early data was not sent
Verify return code: 18 (self-signed certificate)
---
DONE

From the working physical machine

openssl s_client api.launchpad.net:443 </dev/null
CONNECTED(00000003)
depth=2 C = US, O = Internet Security Research Group, CN = ISRG Root X1
verify return:1
depth=1 C = US, O = Let's Encrypt, CN = R13
verify return:1
depth=0 CN = launchpad.net
verify return:1
---
Certificate chain
 0 s:CN = launchpad.net
   i:C = US, O = Let's Encrypt, CN = R13
   a:PKEY: rsaEncryption, 2048 (bit); sigalg: RSA-SHA256
   v:NotBefore: Jan 19 10:14:34 2026 GMT; NotAfter: Apr 19 10:14:33 2026 GMT
 1 s:C = US, O = Let's Encrypt, CN = R13
   i:C = US, O = Internet Security Research Group, CN = ISRG Root X1
   a:PKEY: rsaEncryption, 2048 (bit); sigalg: RSA-SHA256
   v:NotBefore: Mar 13 00:00:00 2024 GMT; NotAfter: Mar 12 23:59:59 2027 GMT
---
Server certificate
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----
subject=CN = launchpad.net
issuer=C = US, O = Let's Encrypt, CN = R13
---
No client certificate CA names sent
Peer signing digest: SHA256
Peer signature type: RSA-PSS
Server Temp Key: X25519, 253 bits
---
SSL handshake has read 3623 bytes and written 399 bytes
Verification: OK
---
New, TLSv1.3, Cipher is TLS_AES_256_GCM_SHA384
Server public key is 2048 bit
Secure Renegotiation IS NOT supported
Compression: NONE
Expansion: NONE
No ALPN negotiated
Early data was not sent
Verify return code: 0 (ok)
---
DONE

Using TERMINAL, how do I SUCCESSFULLY uninstall nautilus completely, and aferwhich, how do I reinstall it SUCCESSFULLY - dependencies and all...?

Currently, I can copy, edit, move, etc. files using terminal so drive itself and permissions seem no peoblem, edit using nano, etc., but nautilus seems to just want to crash (like it's corrupt) so want to reinstall, not repair, it.

from terminal:

Desktop$ nautilus
** Message: 19:33:27.602: Connecting to org.freedesktop.Tracker3.Miner.Files
Gsk-Message: 19:33:30.917: Failed to realize renderer of type 'GskNglRenderer' for surface 'GdkWaylandToplevel': OpenGL ES 3.0 is not supported by this renderer.

Gsk-Message: 19:34:24.833: Failed to realize renderer of type 'GskNglRenderer' for surface    'GdkWaylandPopup': OpenGL ES 3.0 is not supported by this renderer.

Gsk-Message: 19:34:46.395: Failed to realize renderer of type 'GskNglRenderer' for surface 'GdkWaylandPopup': OpenGL ES 3.0 is not supported by this renderer.

Shouldn't that be Gsk.NglRenderer, not GskNglRenderer?

In lieu of using termnal on the desktop, would using the RECOVERY tool from grub and dropping into root be better way to uninstall, then reboot and again to the tool to root, to reinstall nautilus?

Maybe I have not found a way to get a good scan in Ubuntu. IMHO, a good scan file is high resolution and small. For the same resolution, smaller is better.

I scan documents almost exclusively. For example, nowadays I am scanning hard copy tax documents that arrive in the mail, as my accountant expects everything to be uploaded.

I have tried xsane, scanlite and scanpage, but the files are typically ginormous (bigger than a MB). Using Windows Fax and Scan in Windows 7, I set the resolution to 300 dpi and scanned an ubuntu printer test printout. I get a nice looking image tiff that weighs in at 66 Kb.

You can see for yourself, download what I got here, filename:

Windows_Fax_n_Scan_ubuntu_print_test_2026-02-07.tiff

You can try it! Print a test page in your system settings, printers. Then scan it and compare what you got with what I got from Windows 7.

(I have not tried later Windows versions. I need Windows 7 for one application. I do not use Windows 7 for email or surfing.)

As suggested by Daniel T, in ubuntu, I tried simple-scan on the same printer test print out. I set the resolution to 300 dpi and compression at max. I got a 143 Kb pdf. To my eye, the print is dark gray, not as black as in the tiff. You can download what I got here, filename:

simple-scan_text_300dpi_max_compress_2026-02-07.pdf

Again, if you like, you can try it and see for yourself.

Until I find a good way to scan in Ubuntu, I will be dual booting into Windows 7 when I need to scan. Is there a way to scan in Ubuntu that I have not discovered?

In Brave, with more than one tab in a window, I cannot select a tab without the selection moving to that to the left and eventually moving to the leftmost tab. Similarly in Ubuntu 24.04 when using "Show Apps," it always returns to the first screen of apps after clicking on the right-pointing arrow.

How do I correct both of these these?

This setup uses a Bluetooth keyboard. The problem is still present when turning off the keyboard. One thing that I uncovered is using the Use vertical tabs option in Brave. At least while using this, when selecting a specific tab, that tab stays selected. On the other hand, Show Apps still has the original problem.

Specs:

• Motherboard: TUF Gaming X670E-Plus WiFi

• GPU: Nvidia RTX 4070 dual, made by Palit

• CPU: Ryzen 7 7700

• RAM: Kingston furry beast 5200mhz 16GB x 4 - it's working stable at 4800MHz

Why can't I install any Linux? I cant install any distribution of Linux. It freezes or does not start. When trying to start Fedora it takes 10 minutes, after updating Fedora don't start, Ubuntu freezes in desktop start, and Bazzite OS doesn't start at all. I have log "watchdog CPU is stock 122s, something like that" I have m2 disk PCIe5 and Ryzen 7 7700 , RTX 4070, and 64GB RAM DDR5 in 4800MHz when I make this DDR for 3600MHz speed this is not doing anything better.

I have done everything I should do in BIOS to start Linux that people write in the web. My BIOS is the newest version. I don't know what is the problem. What should I do? Any earlier distribution doesn't work on my platform. Ubuntu is the most popular distribution, and I used it on older platforms. Is it possible to use Ubuntu on a relatively new platform?

Log problem when I install Ubuntu Server:

[   92.269020] watchdog: BUG: soft lockup - CPU#10 stuck for 78s! [(cloud-init):1434] 
[   96.262010] watchdog: BUG: soft lockup - CPU#4 stuck for 82s! [(udev-worker):1254] 
[  120.269016] watchdog: BUG: soft lockup - CPU#10 stuck for 105s! [(cloud-init):1434] 
[  124.262016] watchdog: BUG: soft lockup - CPU#4 stuck for 108s! [(udev-worker):1254] 
[  148.269013] watchdog: BUG: soft lockup - CPU#10 stuck for 131s! [(cloud-init):1434] 
[  152.262012] watchdog: BUG: soft lockup - CPU#4 stuck for 134s! [(udev-worker):1254] .... – 
...[ ** ] Job systemd-networkd.service/start running (7s / 1min 34s) 

...and freeze is not happening next.

I have a Dell native Windows 11 on which I have installed a dual boot Ubuntu 25.04.

I was working from Ubuntu and the laptop froze, and I forced the shutdown keeping pushed the power off button. When rebooted, the system can't boot. It starts a series of BIOS-like screens where it sort of scans the system, and when I try to enter the UEFI, it does not even show up the Windows option. The Ubuntu option is still there, but there is no grub at the boot where I can select it, neither does it boot Ubuntu automatically. I try to play with the UEFI settings, until I eventually try to reset default and now not even the Ubuntu option is in the UEFI.

What can I do to restore the booting system?

For more info:

$ sudo parted -l
Model: ASolid USB (scsi)
Disk /dev/sda: 126GB
Sector size (logical/physical): 512B/512B
Partition Table: gpt
Disk Flags: 

Number  Start   End     Size    File system  Name       Flags
 1      32.8kB  6273MB  6273MB               ISO9660    hidden, msftdata
 2      6273MB  6278MB  5202kB               Appended2  boot, esp
 3      6278MB  6278MB  307kB                Gap1       hidden, msftdata
 4      6279MB  126GB   120GB   ext4

I added my Boot-Repair Boot Info Summary added at this link.

============================== Boot Info Summary ===============================


sda: ___________________________________________________________________________

    File system:       iso9660
    Boot sector type:  Grub2 (v1.99-2.00)
    Boot sector info:  Grub2 (v1.99-2.00) is installed in the boot sector of 
                       sda and looks at sector 0 of the same hard drive for 
                       core.img, but core.img can not be found at this 
                       location.
    Mounting failed:   mount: /mnt/BootInfo/FD/sda: /dev/sda already mounted or mount point busy.
       dmesg(1) may have more information after failed mount system call.


================================ 0 OS detected =================================


================================ Host/Hardware =================================

CPU architecture: 64-bit
Video: AD107GLM [RTX 1000 Ada Generation Laptop GPU] Meteor Lake-P [Intel Arc Graphics] from NVIDIA Corporation Intel Corporation
Live-session OS is Ubuntu 64-bit (Ubuntu 25.04, plucky, x86_64)

===================================== UEFI =====================================

BIOS/UEFI firmware: 1.13.0(1.13) from Dell Inc.
The firmware is EFI-compatible, and is set in EFI-mode for this live-session.
SecureBoot enabled according to mokutil - Please report this message to boot.repair@gmail.com.
BootCurrent: 0000
Timeout: 0 seconds
BootOrder: 0000,0001
Boot0000* UEFI ASolid USB_0114 74417014 PciRoot(0x0)/Pci(0xd,0x0)/USB(4,0)/HD(2,GPT,d18abfb2-ff4d-49e5-9077-9c1556aa882c,0xbaf308,0x27b0)/File(\EFI\Boot\BootX64.efi){auto_created_boot_option}
Boot0001* UEFI HTTPs Boot   PciRoot(0x0)/Pci(0x1f,0x6)/MAC(000000000000,0)/IPv4(0.0.0.00.0.0.0,0,0)/Uri(){auto_created_boot_option}


============================= Drive/Partition Info =============================

Disks info: ____________________________________________________________________


Partitions info (1/3): _________________________________________________________


Partitions info (2/3): _________________________________________________________


Partitions info (3/3): _________________________________________________________


fdisk -l (filtered): ___________________________________________________________

Disk sda: 117.19 GiB, 125829120000 bytes, 245760000 sectors
Disk identifier: D18ABFB2-FF4D-49E5-9075-9C1556AA882C
        Start       End   Sectors   Size Type
sda1        64  12251911  12251848   5.8G Microsoft basic data
sda2  12251912  12262071     10160     5M EFI System
sda3  12262072  12262671       600   300K Microsoft basic data
sda4  12263424 245757951 233494528 111.3G Linux filesystem

parted -lm (filtered): _________________________________________________________

sda:126GB:scsi:512:512:gpt:ASolid USB:;
1:32.8kB:6273MB:6273MB::ISO9660:hidden, msftdata;
2:6273MB:6278MB:5202kB::Appended2:boot, esp;
3:6278MB:6278MB:307kB::Gap1:hidden, msftdata;
4:6279MB:126GB:120GB:ext4::;

blkid (filtered): ______________________________________________________________

NAME   FSTYPE   UUID                                 PARTUUID                             LABEL              PARTLABEL
sda    iso9660  2025-04-15-18-45-54-00                                                    Ubuntu 25.04 amd64 
├─sda1 iso9660  2025-04-15-18-45-54-00               d18abfb2-ff4d-49e5-9074-9c1556aa882c Ubuntu 25.04 amd64 ISO9660
├─sda2 vfat     8F89-1BFD                            d18abfb2-ff4d-49e5-9077-9c1556aa882c ESP                Appended2
├─sda3                                               d18abfb2-ff4d-49e5-9076-9c1556aa882c                    Gap1
└─sda4 ext4     0b28ac72-109d-4519-a7be-f6c1d82f6478 c170c0f9-f2d5-4f4b-a261-ca5848f45c4a writable           

Mount points (filtered): _______________________________________________________

                                                               Avail Use% Mounted on
/dev/sda1                                                          0 100% /cdrom
/dev/sda2                                                       968K  81% /media/root/ESP
efivarfs                                                      152.4K  64% /sys/firmware/efi/efivars

Mount options (filtered): ______________________________________________________

/dev/sda1                                                     iso9660         ro,noatime,nojoliet,check=s,map=n,blocksize=2048,iocharset=utf8
/dev/sda2                                                     vfat            rw,nosuid,nodev,relatime,fmask=0022,dmask=0022,codepage=437,iocharset=iso8859-1,shortname=mixed,showexec,utf8,flush,errors=remount-ro

Suggested repair: ______________________________________________________________

The default repair of the Boot-Repair utility would not act on the boot.

I am using Ubuntu 24.04. To set up VirtualBox, I followed this guide. I can do the steps without getting an error and I can enroll the MOK, however:

❯ sudo modprobe vboxdrv

modprobe: ERROR: could not insert 'vboxdrv': Key was rejected by service

I can’t really find documentation about this.

A similar question is also asked here, but it only recommends turning off Secure Boot which I would like to keep: modprobe: Key was rejected by service (Ubuntu 22.04.1 Desktop ISO)

This: How can I fix this 'modprobe vboxdrv' error in VirtualBox? ERROR: could not insert 'vboxdrv': Required key not available doesn't answer my question as it is a different error. In fact I had the "Required key not available" error before, but as I said, I enrolled the MOK. Now my error is, as stated above: "Key was rejected by service". So from what I understand a key is available, but not picked by the service. My problem is that I don't know why. I followed the above guide strictly and also repeated it.

I run Ubuntu 22.04. Today my computer started being very slow to reboot. I was having trouble with NordVPN and was trying multiple things to fix it following their support team advice. When I restarted my system following their instructions I got the slow boot issue. It gets to the login screen at the usual speed, but after I put my password it goes to a black screen and takes a few minutes to load the desktop. I looked at my log with journalctl --since today and there was a 1½ minute gap apparently due to geoclue (see output below showing the jump in time around the time I have the issue with geoclue). What should I do?

I tried just removing geoclue with sudo apt-get remove geoclue-2.0. However, it also wants to remove the following packages: gdm3 geoclue-2.0 gir1.2-geoclue-2.0 gnome-calendar gnome-control-center gnome-initial-setup gnome-settings-daemon gnome-shell gnome-shell-extension-appindicator gnome-shell-extension-desktop-icons-ng gnome-shell-extension-ubuntu-dock libgeoclue-2-0 ubuntu-desktop ubuntu-desktop-minimal ubuntu-session. What should I do in this case to solve my issue?

Log output:

nov 23 13:38:10 roberto-IdeaPad-Gaming-3-15IMH05 /usr/libexec/gdm-x-session[2619]: dbus-update-activation-environment: setting GTK_MODULES=gail:atk-bridge
nov 23 13:38:10 roberto-IdeaPad-Gaming-3-15IMH05 /usr/libexec/gdm-x-session[2627]: dbus-update-activation-environment: setting QT_ACCESSIBILITY=1
nov 23 13:38:10 roberto-IdeaPad-Gaming-3-15IMH05 /usr/libexec/gdm-x-session[2629]: /etc/X11/Xsession.d/90x11-common_ssh-agent: linha 9: has_option: comando não encontrado
nov 23 13:38:12 roberto-IdeaPad-Gaming-3-15IMH05 systemd[1]: systemd-localed.service: Deactivated successfully.
nov 23 13:38:12 roberto-IdeaPad-Gaming-3-15IMH05 systemd[1]: systemd-hostnamed.service: Deactivated successfully.
nov 23 13:38:13 roberto-IdeaPad-Gaming-3-15IMH05 systemd[1]: fprintd.service: Deactivated successfully.
nov 23 13:38:15 roberto-IdeaPad-Gaming-3-15IMH05 systemd[1]: systemd-timedated.service: Deactivated successfully.
nov 23 13:38:42 roberto-IdeaPad-Gaming-3-15IMH05 geoclue[1615]: Service not used for 60 seconds. Shutting down..
nov 23 13:38:42 roberto-IdeaPad-Gaming-3-15IMH05 systemd[1]: geoclue.service: Deactivated successfully.
nov 23 13:40:19 roberto-IdeaPad-Gaming-3-15IMH05 /usr/libexec/gdm-x-session[2645]: dbus-update-activation-environment: setting SHELL=/bin/bash
nov 23 13:40:19 roberto-IdeaPad-Gaming-3-15IMH05 /usr/libexec/gdm-x-session[2645]: dbus-update-activation-environment: setting QT_ACCESSIBILITY=1
nov 23 13:40:19 roberto-IdeaPad-Gaming-3-15IMH05 /usr/libexec/gdm-x-session[2645]: dbus-update-activation-environment: setting XDG_CONFIG_DIRS=/etc/xdg/xdg-ubuntu:/etc/xdg
nov 23 13:40:19 roberto-IdeaPad-Gaming-3-15IMH05 /usr/libexec/gdm-x-session[2645]: dbus-update-activation-environment: setting LANGUAGE=pt_BR:pt:en
nov 23 13:40:19 roberto-IdeaPad-Gaming-3-15IMH05 /usr/libexec/gdm-x-session[2645]: dbus-update-activation-environment: setting DESKTOP_SESSION=ubuntu
nov 23 13:40:19 roberto-IdeaPad-Gaming-3-15IMH05 /usr/libexec/gdm-x-session[2645]: dbus-update-activation-environment: setting GTK_MODULES=gail:atk-bridge
nov 23 13:40:19 roberto-IdeaPad-Gaming-3-15IMH05 /usr/libexec/gdm-x-session[2645]: dbus-update-activation-environment: setting PWD=/home/roberto
nov 23 13:40:19 roberto-IdeaPad-Gaming-3-15IMH05 /usr/libexec/gdm-x-session[2645]: dbus-update-activation-environment: setting XDG_SESSION_DESKTOP=ubuntu
nov 23 13:40:19 roberto-IdeaPad-Gaming-3-15IMH05 /usr/libexec/gdm-x-session[2645]: dbus-update-activation-environment: setting LOGNAME=roberto
nov 23 13:40:19 roberto-IdeaPad-Gaming-3-15IMH05 /usr/libexec/gdm-x-session[2645]: dbus-update-activation-environment: setting XDG_SESSION_TYPE=x11
nov 23 13:40:19 roberto-IdeaPad-Gaming-3-15IMH05 /usr/libexec/gdm-x-session[2645]: dbus-update-activation-environment: setting GPG_AGENT_INFO=/run/user/1000/gnupg/S.gpg-agent:0:1
nov 23 13:40:19 roberto-IdeaPad-Gaming-3-15IMH05 /usr/libexec/gdm-x-session[2645]: dbus-update-activation-environment: setting SYSTEMD_EXEC_PID=2021
nov 23 13:40:19 roberto-IdeaPad-Gaming-3-15IMH05 /usr/libexec/gdm-x-session[2645]: dbus-update-activation-environment: setting XAUTHORITY=/run/user/1000/gdm/Xauthority
nov 23 13:40:19 roberto-IdeaPad-Gaming-3-15IMH05 /usr/libexec/gdm-x-session[2645]: dbus-update-activation-environment: setting WINDOWPATH=2
nov 23 13:40:19 roberto-IdeaPad-Gaming-3-15IMH05 /usr/libexec/gdm-x-session[2645]: dbus-update-activation-environment: setting HOME=/home/roberto
nov 23 13:40:19 roberto-IdeaPad-Gaming-3-15IMH05 /usr/libexec/gdm-x-session[2645]: dbus-update-activation-environment: setting USERNAME=roberto
nov 23 13:40:19 roberto-IdeaPad-Gaming-3-15IMH05 /usr/libexec/gdm-x-session[2645]: dbus-update-activation-environment: setting IM_CONFIG_PHASE=1
nov 23 13:40:19 roberto-IdeaPad-Gaming-3-15IMH05 /usr/libexec/gdm-x-session[2645]: dbus-update-activation-environment: setting LANG=pt_BR.UTF-8
nov 23 13:40:19 roberto-IdeaPad-Gaming-3-15IMH05 /usr/libexec/gdm-x-session[2645]: dbus-update-activation-environment: setting XDG_CURRENT_DESKTOP=ubuntu:GNOME
nov 23 13:40:19 roberto-IdeaPad-Gaming-3-15IMH05 /usr/libexec/gdm-x-session[2645]: dbus-update-activation-environment: setting XDG_SESSION_CLASS=user
nov 23 13:40:19 roberto-IdeaPad-Gaming-3-15IMH05 /usr/libexec/gdm-x-session[2645]: dbus-update-activation-environment: setting USER=roberto
nov 23 13:40:19 roberto-IdeaPad-Gaming-3-15IMH05 /usr/libexec/gdm-x-session[2645]: dbus-update-activation-environment: setting DISPLAY=:1
nov 23 13:40:19 roberto-IdeaPad-Gaming-3-15IMH05 /usr/libexec/gdm-x-session[2645]: dbus-update-activation-environment: setting SHLVL=1
nov 23 13:40:19 roberto-IdeaPad-Gaming-3-15IMH05 /usr/libexec/gdm-x-session[2645]: dbus-update-activation-environment: setting XDG_RUNTIME_DIR=/run/user/1000
nov 23 13:40:19 roberto-IdeaPad-Gaming-3-15IMH05 /usr/libexec/gdm-x-session[2645]: dbus-update-activation-environment: setting XDG_DATA_DIRS=/usr/share/ubuntu:/usr/share/gnome:/home/roberto/.local/share/flatpak>
nov 23 13:40:19 roberto-IdeaPad-Gaming-3-15IMH05 /usr/libexec/gdm-x-session[2645]: dbus-update-activation-environment: setting PATH=/home/roberto/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin>
nov 23 13:40:19 roberto-IdeaPad-Gaming-3-15IMH05 /usr/libexec/gdm-x-session[2645]: dbus-update-activation-environment: setting GDMSESSION=ubuntu
nov 23 13:40:19 roberto-IdeaPad-Gaming-3-15IMH05 /usr/libexec/gdm-x-session[2645]: dbus-update-activation-environment: setting DBUS_SESSION_BUS_ADDRESS=unix:path=/run/user/1000/bus
nov 23 13:40:19 roberto-IdeaPad-Gaming-3-15IMH05 /usr/libexec/gdm-x-session[2645]: dbus-update-activation-environment: setting _=/usr/bin/dbus-update-activation-environment
nov 23 13:40:20 roberto-IdeaPad-Gaming-3-15IMH05 dbus-daemon[2045]: [session uid=1000 pid=2045] Activating via systemd: service name='org.a11y.Bus' unit='at-spi-dbus-bus.service' requested by ':1.23' (uid=1000 >
nov 23 13:40:20 roberto-IdeaPad-Gaming-3-15IMH05 systemd[2021]: Starting Accessibility services bus...
nov 23 13:40:20 roberto-IdeaPad-Gaming-3-15IMH05 dbus-daemon[2045]: [session uid=1000 pid=2045] Successfully activated service 'org.a11y.Bus'

I am trying to install Ubuntu 22.04 on my laptop's internal SSD and on my USB external SSD.

Specs:

• BIOS: Version V1.13, date 3/2/2018

• Motherboard: Acer Model Ptero_SK Version V1.13

• OS: Microsoft Windows 10 Home (64-bit) Version (Build) 21H2 (10.0.19044)

I have BIOS in UEFI boot SSD are GPT

Do you have any idea why Ubuntu won't boot and show on disks?

I tried both to install on my internal disk as dual boot with Windows 10 and later on a USB external SSD. Both installations were completed and messages stated they were successful, however when rebooting in my BIOS F12 key pressing only Windows Boot Manager shows, and it can only boot to Windows 10.

When I plug in installation USB it shows as Linux when pressing the F12 key and can boot OK.

What am I doing wrong?

Yesterday I tried to upgrade from 21.10 to 22.04, and late in the process I got a message saying that some package (I think it was Python 3 point something) hadn't installed properly. Later it showed that message again, this time saying that because it couldn't finish the upgrade it would try to fix some things, but maybe it wouldn't be bootable afterwards. No instructions on what I should do were shown. I did try opening a terminal and typing python3 and that did look right: python 3 didn't seem to be missing.

Eventually I did end up turning off the laptop. I got a kernel panic. I managed to fix it by booting an earlier kernel version instead. It seems to have upgraded, but a lot of icons are missing, either showing as gears or as file-not-found icons.

The software updater thinks I should get rid of some "old kernel updates that are no longer needed", but now that I can only boot an old kernel I don't want to do that. It seems able to find new updates but unable to install them for some reason, I can get it to attempt, but then it fails, showing this (screenshot: "Softwareopdatering / Pakkehandling mislykkedes / Installation eller fjernelse af en softwarepakke mislykkedes.", which means something along the lines of "Software update / Package action failed / Installation or removal of a software package failed.")

I can figure out how to use the laptop despite all the icons looking the same (it would be nice if it were fixable though), but being able to update anything (or install or remove anything) is a bit too limiting. So how do I get it working again?

I tried running sudo apt update && sudo apt upgrade, and got this (if there's some command line flag to get the output in English, I'd rather use that than translate things myself, or I guess I could try putting the laptop in English if that's really the only way):

Henter:1 http://security.ubuntu.com/ubuntu jammy-security InRelease [110 kB]                            
Havde:2 http://archive.ubuntu.com/ubuntu jammy InRelease                                                
Henter:3 http://archive.ubuntu.com/ubuntu jammy-updates InRelease [114 kB]
Henter:4 http://security.ubuntu.com/ubuntu jammy-security/main amd64 DEP-11 Metadata [11,4 kB]
Henter:5 http://security.ubuntu.com/ubuntu jammy-security/universe amd64 DEP-11 Metadata [608 B]
Henter:6 http://archive.ubuntu.com/ubuntu jammy-backports InRelease [99,8 kB]
Henter:7 http://archive.ubuntu.com/ubuntu jammy-updates/main amd64 DEP-11 Metadata [90,8 kB]
Henter:8 http://archive.ubuntu.com/ubuntu jammy-updates/universe amd64 DEP-11 Metadata [95,1 kB]
Henter:9 http://archive.ubuntu.com/ubuntu jammy-updates/multiverse amd64 DEP-11 Metadata [940 B]
Henter:10 http://archive.ubuntu.com/ubuntu jammy-backports/universe amd64 DEP-11 Metadata [12,5 kB]
Hentede 536 kB på 3s (201 kB/s)                                             
Indlæser pakkelisterne... Færdig
Opbygger afhængighedstræ... Færdig
Læser tilstandsoplysninger... Færdig
7 pakker kan opgraderes. Kør »apt list --upgradable« for at se dem.
Indlæser pakkelisterne... Færdig
Opbygger afhængighedstræ... Færdig
Læser tilstandsoplysninger... Færdig
Beregner opgraderingen... Færdig
Følgende pakker blev installeret automatisk, og behøves ikke længere:
  app-install-data-partner cdparanoia cdrskin dvd+rw-tools dvgrab gcc-11-base:i386 giblib1
  gir1.2-gnomebluetooth-1.0 gnome-screenshot k3b k3b-data k3b-i18n libabsl20200923 libaom0
  libcamel-1.2-62 libcbor0.6 libclang1-11 libcmis-0.5-5v5 libcodec2-0.9 libcurl3-gnutls:i386 libdap27
  libdapclient6v5 libdav1d4 libdrm-intel1:i386 libegl1-mesa libepsilon1 libextutils-pkgconfig-perl
  libfluidsynth2 libfwupdplugin1 libgavl1 libgdal28 libgdk-pixbuf2.0-0 libgeos-3.9.0 libgl1-mesa-glx
  libglu1-mesa:i386 libgsoap-2.8.104 libgupnp-1.2-0 libicu67:i386 libidn11 libieee1284-3:i386
  libigdgmm11 libjsoncpp24 libk3b7 libk3b7-extracodecs libkdecorations2private8 libkf5cddb5
  libkf5pulseaudioqt2 libllvm11 libllvm12 libllvm12:i386 libmbedcrypto3 libmbedtls12 libmbedx509-0
  libmgba libmimetic0v5 libmlt++3 libmlt6 libmms0 libmozjs-78-0 libmusicbrainz5cc2v5 libneon27-gnutls
  libnetcdf18 libnspr4:i386 libnss3:i386 libntfs-3g883 libodbc1 libodbc1:i386 libodbccr2
  libodbccr2:i386 libofa0 libopencv-calib3d4.5 libopencv-contrib4.5 libopencv-core4.5 libopencv-dnn4.5
  libopencv-features2d4.5 libopencv-flann4.5 libopencv-highgui4.5 libopencv-imgcodecs4.5
  libopencv-imgproc4.5 libopencv-ml4.5 libopencv-objdetect4.5 libopencv-video4.5 libopengl0:i386
  libopenjp2-7:i386 liborcus-0.16-0 liborcus-parser-0.16-0 libotf0 libpci3:i386 libpciaccess0:i386
  libperl5.34:i386 libplacebo72 libpoppler-glib8:i386 libpoppler111 libpoppler111:i386
  libpoppler118:i386 libproj19 libpython3.9 libpython3.9-dev libpython3.9-minimal libpython3.9-stdlib
  libqgpgme7 libqhull8.0 libqt5keychain1 libquicktime2 libsane1:i386 libsnmp40:i386 libssl1.1:i386
  libstdc++-9-dev libtinyxml2-8 liburing1 libvpx6 libvpx6:i386 libwebp6 libwebp6:i386 libwrap0:i386
  libx264-160 libx265-192 libxcb-xtest0 libxmlb1 linux-headers-5.13.0-51
  linux-headers-5.13.0-51-generic linux-image-5.13.0-51-generic linux-modules-5.13.0-51-generic
  linux-modules-extra-5.13.0-51-generic ltrace obsession odbcinst odbcinst1debian2 ofono
  python-pygame-sdl2 python3-nose python3-simplejson python3.9 python3.9-dev python3.9-minimal
  recordmydesktop ruby2.7 trojita trojita-data trojita-l10n ttf-ubuntu-font-family ttf-unifont
  wesnoth-1.16-data wesnoth-1.16-music x11proto-input-dev x11proto-randr-dev x11proto-xinerama-dev
  xul-ext-ubufox
Brug »sudo apt autoremove« til at fjerne dem.
Følgende pakker er blevet holdt tilbage:
  colobot libboost-regex1.74.0 libsource-highlight4v5 wesnoth
Følgende pakker vil blive opgraderet:
  linux-firmware wireless-regdb xdg-desktop-portal
3 opgraderes, 0 nyinstalleres, 0 afinstalleres og 4 opgraderes ikke.
1529 ikke fuldstændigt installerede eller afinstallerede.
1 standard security update
264 kB/238 MB skal hentes fra arkiverne.
Efter denne handling, vil 4.096 B yderligere diskplads være brugt.
Vil du fortsætte? [J/n] j
Henter:1 http://archive.ubuntu.com/ubuntu jammy-updates/main amd64 xdg-desktop-portal amd64 1.14.4-1ubuntu2~22.04.1 [264 kB]
Hentede 264 kB på 3s (103 kB/s)              
Sætter python3 (3.10.4-0ubuntu2) op ...
running python rtupdate hooks for python3.10...
  File "/usr/share/games/renpy/launcher/game/gui7/code.py", line 283
    l = re.sub(ur'_\((\".*?\")\)', replace, l)
                 ^^^^^^^^^^^^^^^^
SyntaxError: invalid syntax
error running python rtupdate hook renpy
dpkg: fejl under behandling af pakken python3 (--configure):
 installed python3 package post-installation script subprocess returned error exit status 4
dpkg: afhængighedsproblemer forhindrer konfiguration af lsb-release:
 lsb-release afhænger af python3:any; men:
  Pakken python3 er ikke sat op endnu.

dpkg: fejl under behandling af pakken lsb-release (--configure):
 afhængighedsproblemer - efterlader den ukonfigureret
Ingen apportrapport skrevet da fejlbeskeden indikerer, at det er en opfølgningsfejl fra en tidligere fejl.
 Der opstod fejl under behandlingen:
 python3
 lsb-release
E: Sub-process /usr/bin/dpkg returned an error code (1)

Somehow since space hasn't been a problem I've sometimes left stuff installed after not using it for months or even years, so maybe I should have uninstalled some things before upgrading, but I guess now is a bit late to realize that would maybe have helped, at least by making the upgrade take less time as there would have been less stuff to download new versions of.

Looking the error messages I got in Danish, I think it's having trouble updating the python3 package because another package, probably renpy, was depending on the old version, but it's kind of late in the evening, so it might take me some time to check if that's what was happening.

I have been trying to solve this problem for several hours for now.

Problem explanation

I bought a new computer (HP OMEN 15) with Windows 11 already installed. I did a dual boot with Ubuntu, which perfectly worked... until I booted again on Windows (from GRUB). Then, GRUB disappears and only Windows Boot Manager remains.

So I reinstalled GRUB according to these instructions: https://doc.ubuntu-fr.org/tutoriel/comment_restaurer_grub . And this worked, but the problem remained: upon launch, Windows 11 erases GRUB again.

Then I inactivated windows boot manager following these instructions https://unix.stackexchange.com/questions/241809/grub2-gone-every-time-i-boot-windows-10 and I could clearly observe Windows Boot Manager was set inactive. After that I reinstalled grub and ran efibootmgr again, but then Windows Boot Manager was not in the list anymore. Ubuntu was standing where it was, so I thought "OK, this time the problem is solved".

I double checked in my computer's BIOS: Windows Boot Manager had also disappeared and only "OS Boot Manager" was to be seen.

Upon boot, my computer properly opened GRUB and I had the possibility to boot to Ubuntu (which worked), or on Windows (even if there was no "Windows Boot Manager" either in the output of efibootmgr or in the Boot options list of my BIOS).

Still, when I chose to boot to Windows, the same problem happened again: GRUB disappeared.

Clarification

• I do not want to erase Windows.
• I successfully (or so do I think) followed the instruction from https://doc.ubuntu-fr.org/tutoriel/comment_restaurer_grub and https://unix.stackexchange.com/questions/241809/grub2-gone-every-time-i-boot-windows-10
• Windows 11 was already installed before I even got my computer, so this is not about the installation order
• This is not about GRUB erased after a Windows update.

Hypothesis

What I think (with my low knowledge) it is related to:

• As Windows Boot Manager somehow seems to disappear in GRUB's installation process, Windows clears everything and restores it upon startup. If so, is there a way to "tell" Windows not to look for its boot manager?

What I need

I am in dire need of help. I would like to solve this disappearing GRUB problem and have a better understanding of what is going on here.

I recently bought a Raspberry Pi 4 with a 64GB SD card. My operating system is working fine from SD card, but I would like to clone the whole image from my SD card to my external hard drive so I can remove my SD card and my machine should reboot from the external hard drive. I tried the Clonezilla Device-Device option, but Clonezilla only recognizes my external hard drive as sources and is unable to find my bootable SD card.

I have read some tutorials about Multi-system to use with Clonezilla. I downloaded Multi-system on my system extract it to my desktop and when I extract to install this software in the terminal it ends up with an error and it is unable to be installed.

Can someone please recommend how can I achieve my goal to copy my existing Ubuntu OS to an external hard drive and boot my OS from the hard drive?

On booting my 64-bit machine running Ubuntu 20.04 I am getting the following error:

BusyBox v1.30.1 (Ubuntu 1:1.30.2-4ubuntu6.1 built-in shell (ash)  
Enter 'help' for a list of built-in commands.  

Most solutions available on the internet suggest to run the 'exit' command and expect to find some errors. In my case when I run the exit command as shown below I don't get anything.

(initramfs) exit

BusyBox v1.30.1 (Ubuntu 1:1.30.2-4ubuntu6.1 built-in shell (ash)
Enter 'help' for a list of built-in commands.

(initramfs) _

Could anybody help me to how to get out of this and boot my machine normally?

Ubuntu Server 16/18.

There are a lot of apps run inside the server including but not limited to docker,npm,maven,gradle,etc.

I am tired to set proxy for each application. Is it possible to set that globally?

Note: when I say globally I mean EVERY CONNECTION including package downloading by apt-get, artifact downloading by maven/gradle/npm from docker build or run process.

I've had a booting problem on a Dell Latitude for a long time now that I've left aside but now want to give another try to access. It's an Ubuntu 18.04 encrypted with LUKS, which used to work properly. One day, upon booting, i got following error in a CLI environment:

[ 1.207067] firewire_ohci 0000:09:00.0: register access failure Please enter passphrase for disk SAMSUNG_ssd_830_Series (sda5_crypt)!<

I can then enter input for password which shows up as ***. I know the password, but I can not enter it. Pressing enter simply brings me to the next line, and then the last phrase (Please enter passphrase for disk SAMSUNG_ssd_830_Series (sda5_crypt)!) pops up again.

I can't recall exactly what I did on the last successful session before getting this, but with hope of someday being able to access the data stored on the disc, I let it be and got an external SSD to use for the time being, leaving the internal disc with the error for later. I also encrypted the externad SSD (LUKS) but one day I got the same error (although slightly different) on the new one, and I still have it after a year of so.

On the external SSD, the difference is that I actually do get to the LUKS encryption heading, where I can enter my password normally (not in CLI but as its meant to) and it works. But then, I get to CLI again with error:

[ 1.908518] firewire_ohci 0000:09:00.0: register access failure BusyBox v1.27.2 (Ubuntu 1:1.27.2-2ubuntu3.2) built-in shell (ash) Enter 'help' for a list of built-in commands. (initramfs)<

It seems here, it brings me further. I still have the same error but at least have managed to decrypt the SSD. When i press help, it shows the following commands:

alias break cd chdir command continue echo eval exec exit export false getopts hash help history let local printf pwd read readonly return set shift test times trap true type ulimit umask unalias unset wait acpid ash awk basename blockdev cat chmod chroot chvt clear cmp cp cut deallocvt deluser devmem df du dumpkmap echo egrep env expr false fbse fgrep find fstrim grep gunzip qzip hostname hwclock ifconfig if kill ln loadfont loadkmap izop mkdir mkfifo mknod mkswap mktemp modinfo more mount mv openvt pidof printf ps pwd readlink reset rm rmdir sed seq setkeycodes sh sleep sort stat static-sh stty switch_root synt tail tee test touch tr true tty umount uname uniq wc wget which yes<

Whoever help with this is a true hero! No way i'll figure this out myself. I hope you're all having a good Easter and staying healthy in these times.

Edit: So lets approach the issue from a different, probably easier, point of view. I used an Ubuntu 18.04 ISO on usb to boot the computer, but i'm running Ubuntu now on test mode, rather than overwriting the existing encrypted partition that I really need to access, and now can view the unreadable partition on Gparted and on GNOME Disks. It seems very close now to see this solved since I know the password. However, when I enter it in GNOME Disks it gives me error: Error unlocking /dev/sda5: Failed to activate device: operation not permitted (udisks-error-quark, 0)" Anyone help?

I had Ubuntu 19.04 64-bit virtual machine. I upgraded it to 19.10. After the upgrade finished, the virtual machine got stuck on boot in VMware Workstation 15. I had used a vmdk image for 19.04 available here: www.osboxes.org/Ubuntu

While I was upgrading the virtual machine I followed the instructions here.

What could be the problem here? Why is a fresh upgrade not able to boot? What should I check in here or do to fix this?

This is a fresh upgrade and whatever kept happening I let it happen. I logged in to tty6 and I got the following screen.

Ubuntu 19.10 osboxes tty6

osboxes login: osboxes
Password:
Last login: Sun Sep  8 00:22:09 IST 2019 on tty5
Welcome to Ubuntu 19.10 (GNU/Linux 5.0.0-27-generic x86_64)

 * Documentation:  [https://help.ubuntu.com](https://help.ubuntu.com)
 * Management:     [https://landscape.canonical.com](https://landscape.canonical.com)
 * Support:        [https://ubuntu.com/advantage](https://ubuntu.com/advantage)

927 updates can be installed immediately.
0 of these updates are security updates.

*** System restart required ***
osboxes@osboxes:~$ sudo restart
[sudo] password for osboxes:
sudo: restart: command not found
osboxes@osboxes:~$ _

I have not restarted the system since the upgrade from 19.04 to 19.10 kept happening.

Then while I posted this question here I some how was able to restart the system and now I get:

end kernel panic not syncing :VFS: Unable to mount root fs on unknown block (0,0)

Kernel panic unable to mount root on unknown block 0,0:

[   14.074557] Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,0)
[   14.075002] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.3.0-19-generic #20-Ubuntu
[   14.075227] Hardware name: VMware, Inc. VMware Virtual Platform/440BX Desktop
 Reference Platform, BIOS 6.00 04/13/2018
[   14.075492] Call Trace:
[   14.075628]  dump_stack+0x63/0x8a
[   14.075762]  panic+0x101/0x2d7
[   14.075881]  mount_block_root+0x23f/0x2e8
[   14.076023]  mount_root+0x38/0x3a
[   14.076148]  prepare_namespace+0x13f/0x194
[   14.076295]  kernel_init_freeable+0x231/0x255
[   14.076458]  ? rest_init+0xb0/0xb0
[   14.076629]  kernel_init+0xe/0x100
[   14.076770]  ret_from_fork+0x35/0x40
[   14.076984] Kernel Offset: 0x7a00000 from 0xffffffff81000000 (relocation range:
0xffffffff80000000-0xffffffffbfffffff)
[   14.077291] ---[ end Kernel panic - not syncing: VFS: Unable to mount root fs
on unknown-block(0,0) ]---

Now I don't know what should I do. Why this problem came. How to debug this and fix this. Rather than creating a new VM by downloading a new ISO I am more interested to learn and fix the problem which has caused this.

I seem to have figured out something which might be applicable as mentioned at Kernel Panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,0). The thing is before upgrading I did not note down on a paper and pencil which kernel version was running or to what version the upgrade took place. I have been running defaults only, so it should not be a problem.

Someone in comments mentioned:

"On my Ubuntu 19.10 I've had to run apt install initramfs-tools in order to get update-initramfs command –"

I do not know how to work with the Advanced boot menu. Please see the screenshots I uploaded to understand my situation.

Advanced boot options:

Which kernel to boot in Advanced boot options:

Even after booting into one of the kernels in advanced options, I get kernel panic messages.

There is some knowledge gap in my situation. I probably have figured out something which I should try, but I am not able to understand how to proceed from here.

I've been using all the methods I could already find online, and I've now come to understand that there is no driver that is claiming my laptop's network card

Here are my outputs from Linux:

iwconfig

enp2s0 no wireless extensions. lo no wireless extensions.

lshw -C network

  *-network                 
   description: Ethernet interface
   product: RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller
   vendor: Realtek Semiconductor Co., Ltd.
   physical id: 0
   bus info: pci@0000:02:00.0
   logical name: enp2s0
   version: 15
   serial: 04:d4:c4:77:53:f3
   size: 1Gbit/s
   capacity: 1Gbit/s
   width: 64 bits
   clock: 33MHz
   capabilities: pm msi pciexpress msix bus_master cap_list ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd 1000bt-fd autonegotiation
   configuration: autonegotiation=on broadcast=yes driver=r8168 driverversion=8.045.08-NAPI duplex=full ip=192.168.0.3 latency=0 link=yes multicast=yes port=twisted pair speed=1Gbit/s
   resources: irq:52 ioport:e000(size=256) memory:f7804000-f7804fff memory:f7800000-f7803fff
*-network UNCLAIMED
   description: Network controller
   product: Realtek Semiconductor Co., Ltd.
   vendor: Realtek Semiconductor Co., Ltd.
   physical id: 0
   bus info: pci@0000:04:00.0
   version: 00
   width: 64 bits
   clock: 33MHz
   capabilities: pm msi pciexpress cap_list
   configuration: latency=0
   resources: ioport:d000(size=256) memory:f7600000-f760ffff

sudo lspci

"04:00.0 Network controller: Realtek Semiconductor Co., Ltd. Device c822"

lspci -knn | grep Net -A3

04:00.0 Network controller [0280]: Realtek Semiconductor Co., Ltd. Device [10ec:c822] Subsystem: AzureWave Device [1a3b:3750] Kernel modules: wl 05:00.0 VGA compatible controller [0300]: Advanced Micro Devices, Inc. [AMD/ATI] Picasso [1002:15d8] (rev c2)

lsusb

Bus 006 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 005 Device 002: ID 13d3:56a2 IMC Networks Bus 005 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 003 Device 002: ID 13d3:3548 IMC Networks Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

Seems fishy to me here, but I don't know for sure. Normally wouldn't Realtek show in at least one of the devices for lsusb? Or maybe not because it is an integrated wireless adapter in this laptop.

uname -r

4.15.0-54-generic

I next tried to build from the Realtek site using this link here. I built the GBE file because it says that it goes up to a 4.15 kernel.

The build was fine, and r8168 seems to work because lsmod | grep r8168 returns:

r8168                 524288  0

I have been told that if you get an output, you did the configuration correctly. I also edited the blacklist.conf and added blacklist r8169 and rebooted my system, to no effect.

I am looking for a translator from Spanish and Portuguese to english that can be used to translate thousand of texts automatically. I used to use google translator, but the recently it has presented several issues that are not consistently solvable (it seems that google changed his policy). Is there any good offline option for ubuntu?

The translation need not to be as good as the one of google, since I am working with natural language processing and a model that considers the idea of "bags of words". So, the most important is to translate well the keywords.

I am trying to get my digital output to work. In alsamixer my S/PDIF is on but no frame around and I can't regulate the volume. Is it maby not activated or is my digital input on and output of?

Specs:

• Ubuntu 16.04 (Linux Mint)

• Asus Xonar DG (soundcard)

Here are some screenshots of aslamixer and audio manager:

aslamixer screenshot

audio manager screenshot

Would be nice, if someone can help me. Thanks

I have gotten a Haier Y11b tablet PC containing two built-in HDDs, one is 30 GB SSD with Windows 10 pre-installed and the second one is detachable 500 GB (connected through USB port). I installed Ubuntu 16.04 LTS on 500 GB using bootable USB flash drive with a 4 GB swap area and 124 GB root. After a successful installation when the machine rebooted and I selected Ubuntu OS from boot menu it opens the grub2 terminal in which Linux is not listed.

I have tried everything i.e., Secure Boot off, etc. I think the issue is that machine doesn't mount the external HDD at the boot because I couldn't find it.

I have checked many things, e.g., link1 ,link2 etc., but they didn't work.

The following table is the output of the lsblk command from an Ubuntu live boot session using a USB flash drive.

NAME   MAJ:MIN RM   SIZE RO TYPE MOUNTPOINT
sdb      8:16   1  14.5G  0 disk 
└─sdb1   8:17   1  14.5G  0 part /cdrom
loop0    7:0    0   1.4G  1 loop /rofs
sdc      8:32   0 465.8G  0 disk 
├─sdc2   8:34   0 237.8G  0 part /media/ubuntu/New Volume
├─sdc5   8:37   0 124.1G  0 part /media/ubuntu/5f730386-478e-4f81-a926-9b1f5b0cc
├─sdc3   8:35   0     1K  0 part 
├─sdc1   8:33   0   100G  0 part /media/ubuntu/Installation
└─sdc4   8:36   0   3.9G  0 part [SWAP]
sda      8:0    0  29.8G  0 disk 
├─sda4   8:4    0  1000M  0 part 
├─sda2   8:2    0    16M  0 part 
├─sda3   8:3    0  28.7G  0 part 
└─sda1   8:1    0   100M  0 part

The above information shows that Ubuntu is installed because the HDD is now mounted. As a new Ubuntu user I don't know what to try next.

Please note that Windows 10 is working fine. Maybe there is something which I should try from it. I tried many things here, but got no luck. I want a dual boot with Ubuntu installed on a 500 GB removable HDD along with Windows 10 on a 30 GB SSD, not vice versa.

I currently have Xubuntu installed on my laptop. It's the only OS, the laptop only has one SSD drive and that drive is encrypted.

I'd like to add a second SSD drive to the laptop and install Linux Mint on that new drive.

I believe the process would simply be to boot from a live USB of Linux Mint and install it to the second hard drive.

Once that install is complete, reboot the laptop into Xubuntu on the first drive and do:

sudo update-grub

Then reboot into Linux Mint on second drive via UEFI boot selection and do:

sudo grub-install /dev/sda

Doing this would update Grub with both distinct Linux distros and present a menu at laptop startup to choose from.

Is that the correct steps for installing the second distro? Does the fact that the first SSD being encrypted have any considerations in dual-booting this way?

Thank you.

I am new to hadoop and did installation hadoop-2.7.3.Also completed all the steps for installation.however my datanode is not running after ran the command start-all.sh. So my doubt is what action need to take if i'm rerunning the command hadoop namenode -format ?

Thanks in advance .

I have just set up Squid Server 3.5.26 on Ubuntu 16.04.2 LTS configured with SSL-bump. HTTP and HTTPS are working fine but any web service that requires Web Sockets fails, for example, a speed test.

I have added the following lines to my squid configuration in an attempt to force a direct connection and prevent SSL caching for web socket connections.

#Temporarily allow all connections for debugging
http_access allow all

acl bump-bypass dstdomain 192.168.0.245 .speedtest.net
# URL's contains ws (most web socket urls do)
acl ssl-web-sockets SSL::server_name_regex \/ws

acl step1 at_step SslBump1
ssl_bump peek step1
ssl_bump splice bump-bypass ssl-web-sockets tcp-web-sockets

#I Read that there was a bug in bump that required !explicity 
#for splice to work for web sockets
ssl_bump bump !ssl-web-sockets all

#just bump all doesn't work either
#ssl_bump bump all

If I disable ssl_bump and don't decrypt encrypted traffic everything works fine.

How can I configure squid to allow a direct web socket connection?

Update

Updated to Squid Server 4.0.21 and added to the config

on_unsupported_protocol tunnel all 

The documentation says this should allow TCP tunnel connections

Sadly this did not fix the issue either, still getting Web socket error

Connection closed before receiving a handshake response

I wrote a Python program to switch WiFi connections via the Network Manager dbus interface, which (I believe) is basically equivalent to the nmcli command-line tool. The script (and nmcli) work properly when run by an unprivileged user on my desktop Ubuntu. I'm trying to figure out how the permissions to allow that were set up.

I'm asking because the same commands don't work on Raspbian, so I'd like to track down where the permissions are different. On Raspbian, when I run my script as an unprivileged user, I get this error when I try to read NetworkManager data via dbus:

dbus.exceptions.DBusException: org.freedesktop.NetworkManager.Settings.PermissionDenied: No session found for uid 1000 (unknown)

and, equivalently, when I run nmcli c as an unprivileged user on Raspbian, it doesn't show the connections as it should. Both work properly with sudo.

My attempts so far

I found some old Ubuntu posts that suggest the PolicyKit package is involved, and that I should create a file /etc/polkit-1/localauthority/50-local.d/org.freedesktop.NetworkManager.pkla with these contents:

[Enable NetworkManager]
Identity=unix-group:netdev
Action=org.freedesktop.NetworkManager.*
ResultAny=yes
ResultInactive=yes
ResultActive=yes

That didn't change anything though. (Notes: all other /etc/polkit-1/localauthority subfolders are empty, and the user is part of the netdev group. I'm not sure what else to check.)

I'm very new to dbus and NetworkManager, so I'd appreciate any help understanding how the permissions to send dbus signals are granted, and how I can troubleshoot a missing NetworkManager permission.

Okay so recently i have gotten a hp pavillion x2 10-n102na

now i have disabled secured boot, but i still am unable to boot from the USB as i'm trying to install lubuntu onto this systems because windows 10 is not suitable for this due to it only having 2 gb of ram. Any and all help is greatly appreciated

I have problem with Adobe Flash Player. While using Opera, few of pages show me that I don't have flash installed. When I run this command in terminal:

sudo apt-get install flashplugin-installer,

I get information that it's already installed. So I try to use this page https://get.adobe.com/pl/flashplayer/ to install flash. When I want to install version for Ubuntu, I get internal error in /usr/bin/apturl-gtk with message:

apturl-gtk crashed with AttributeError in doEnableChannel(): module 'apt_pkg' has no attribute 'Config'

I also tried to install it manually in Opera Web Browser using this tutorial http://www.opera.com/docs/linux/plugins/install/#flash but this method also failed. Any help?

Update: It turns out, our in-house network suppresses pings. I demonstrated this by turning my phone into a hot-spot (thus changing my outbound gateway), connecting with a laptop, then pinging the servers, which worked as expected. ::pulls hair out::

I've inherited two Ubuntu servers that seem to be configured to reject PING requests. My goal is to re-enable pinging for diagnostic purposes.

Things I've tried to enable pinging

Based on instructions from here, I executed this command:

echo  0  > /proc/sys/net/ipv4/icmp_echo_ignore_all

Then added the following instruction to /etc/sysctl.conf so it's enabled on boot. This instruction was not already present:

net.ipv4.icmp_echo_ignore_all=0

ufw:

Respecting ufw, I followed the steps noted in this SO thread: In the file /etc/ufw/sysctl.conf, I found this rule. I did not have to add it.

net/ipv4/icmp_echo_ignore_all=0

I also added rules to /etc/ufw/before.rules

-A ufw-before-input -p icmp --icmp-type echo-request -m state --state ESTABLISHED -j ACCEPT

and /etc/ufw/before6.rules

-A ufw6-before-input -p icmpv6 --icmpv6-type echo-request -m state --state ESTABLISHED -j ACCEPT

Then restarted that service. service ufw restart

iptables:

I added some iptables entries I found by Googling. (I'm showing only the relevant rules in the list.)

root@tatooine:~# iptables --list
ACCEPT     icmp --  anywhere             maskedpath.linode.com icmp echo-request state NEW,RELATED,ESTABLISHED
ACCEPT     icmp --  anywhere             anywhere            state NEW icmp echo-request

Chain FORWARD (policy DROP)
target     prot opt source               destination

Chain OUTPUT (policy ACCEPT)
target     prot opt source               destination
ACCEPT     icmp --  maskedpath.linode.com  anywhere            icmp echo-reply state RELATED,ESTABLISHED

In order to enable pinging, are there additional configurations I am not checking? Alternately, could the ufw rules be loading from a different file, and if so how can I find that file?