How to set partition size to "100%FREE" via MAAS commissioning script? https://askubuntu.com/questions/1563101/how-to-set-partition-size-to-100free-via-maas-commissioning-script

I have created a MAAS commissioning script to set up my disk partitions as I want them to be. However, I can't figure out how to specify the size of a partition to use 100% of the remaining space. I have tried the following values, but they all fail: '100%', '100%FREE', none, '0' and '-1'.

No working camera on Dell Pro 14 Plus PB14250 https://askubuntu.com/questions/1563100/no-working-camera-on-dell-pro-14-plus-pb14250

When using the Dell recovery ISO I get a working camera:

When using the normal Ubuntu 24.04.3 ISO the camera does not work.

App used to test in MS Edge.

I tried so far:

Additional Drivers, fails with error: link to pastebin of error

LNL/ARL steps in: https://wiki.ubuntu.com/IntelMIPICamera#Ubuntu_LTS_24.04

No joy so far. Does anyone have recommendations?

Attempting PXE auto install but installer remains interactive https://askubuntu.com/questions/1563097/attempting-pxe-auto-install-but-installer-remains-interactive

I have a PXE server and I can successfully manually install Ubuntu 22.04 Server over the network. I am trying to automate the installation but it's just ... not working. I believe I have cloud-init set up correctly and I can confirm (via server logs) that cloud-init is downloading the relevant config files from the server. Also the syslog on the target machine says it's applying the config settings (I forget the exact wording), but the installation remains manual.

  • Ubuntu version: 22.04.1
  • Ubiquity version: 22.07.2

I'm using an unmodified 22.04.1-live-server ISO downloaded from Canonical at some point in the past.

Here are my kernel parameters:

/jammy/22.04.1/vmlinuz
    ip=dhcp
    autoinstall
    cloud-config-url=/dev/null
    url=http://myserver/isos/ubuntu-22.04.1-live-server-amd64.iso
    ds=nocloud-net;s=http://myserver/cloud-config-files/

I set cloud-config-url to /dev/null to solve this issue where cloud-init was redownloading the ISO and running out of memory.

Here is my user-data file:

#cloud-config
autoinstall:
    version: 1

    identity:
        hostname: testhost
        username: testadmin
        password: "$6$redacted"

    ssh:
        install-server: true
        allow-pw: true

    storage:
        layout:
            name: direct

    packages:
        - linux-generic-hwe-22.04

Here is my meta-data file:

instance-id: iid-autoinstall-test-ubuntu22
local-hostname: testhost

And I noticed it was querying vendor-data so I made an empty file for that one.


The installation initialization does not seem to produce any errors, and the installation proceeds fine, but it is still a manual installation. The auto install isn't taking effect.

Like I mentioned above, I confirmed that the cloud config files are being downloaded successfully, from my nginx logs during initialization:

[20/Jan/2026:16:15:50 -0500] "GET /isos/ubuntu-22.04.1-live-server-amd64.iso HTTP/1.1" 200 1474873344 "-" "Wget"
[20/Jan/2026:16:15:58 -0500] "GET /cloud-config-files/meta-data HTTP/1.1" 200 68 "-" "Cloud-Init/22.2-0ubuntu1~22.04.3"
[20/Jan/2026:16:15:58 -0500] "GET /cloud-config-files/user-data HTTP/1.1" 200 349 "-" "Cloud-Init/22.2-0ubuntu1~22.04.3"
[20/Jan/2026:16:15:58 -0500] "GET /cloud-config-files/vendor-data HTTP/1.1" 200 0 "-" "Cloud-Init/22.2-0ubuntu1~22.04.3"

I also noticed that the settings in my user-data file aren't even being applied as default answers in the interactive installer, I'm not sure if that's significant.

I've been finding instructions all over the internet and, as far as I know, I have followed them correctly. What am I missing? Why isn't the auto install working? I feel like I'm missing some key step but I can't figure out what it might be.


I checked in /var/log/installer and found this in the server debug logs (sorry it's a screenshot):

enter image description here

This makes me think perhaps I am missing settings for some of the pages in my user-data file? All the examples I've seen have a very minimal file.

Epson printer won’t print, shows error suddenly https://askubuntu.com/questions/1563095/epson-printer-won-t-print-shows-error-suddenly

hoping someone can help. My Epson printer was working fine yesterday, but today it suddenly shows an error and won’t print anything. I tried restarting it and checking the cables, but no luck. Ink levels look okay too. Has anyone faced this before or knows a quick fix? Any suggestions would really help. Thanks!

restore point at Ubuntu like in windows https://askubuntu.com/questions/1563094/restore-point-at-ubuntu-like-in-windows

is it possible to make restore point at Ubuntu like in windows ?

if is it, how to make restore point and how to restore it?

i am using Ubuntu server (no GUI)

WoW 1.12 freezing on exit https://askubuntu.com/questions/1563093/wow-1-12-freezing-on-exit

I have a solo server a play on my Ubuntu machine. Couple of days ago it was working flawlessly for weeks but after I updated WINE and Faugus Launcher which I use to launch the client I get this bug. The game client freezes after pressing exit game, pressing the stop button in faugus does nothing and eventually it locks my whole pc and I need to hard reset. I had this issue originally and switching to geproton 10.10 solved it but it seems to be back and not sure what to do.

Microphone is not working on HP 15 laptop with Ubuntu 24.04 https://askubuntu.com/questions/1563081/microphone-is-not-working-on-hp-15-laptop-with-ubuntu-24-04

I have updated the OS of this laptop to Ubuntu 24.04. Initially none of the drivers for WiFi and Bluetooth were detected, so I rectified these issues, but now the microphone is not working on this system. I have tried all of the potential fixes provided by ChatGPT and Claude, but none of them worked.

screen video/audio capture app for Ubuntu 24.04lts https://askubuntu.com/questions/1563067/screen-video-audio-capture-app-for-ubuntu-24-04lts

looking for a GUI screen video w/audio capture app for Ubuntu 24.04lts - search on AskUbuntu pulls up stuff 10-15 years old with things no longer in existence... same with search engines.

Ubuntu Software only has recording junk - most do not even open, have no GUI, or open and locks up like not working with Wayland.

That print screen thing only records video - no audio.

VLC says can capture desktop but has no record button or way to select...

I can use my laptop's hdmi output to record screen to my DVD recorder, bring the burned DVD to the laptop and use handbrake to make mp4 recordings... seems there should be something more user friendly!?!

Tried OBS-Studio and get this:

enter image description here

Failed to fetch linux-firmware 503 Service Unavailable [IP: 91.189.92.24 80] https://askubuntu.com/questions/1563064/failed-to-fetch-linux-firmware-503-service-unavailable-ip-91-189-92-24-80

While running apt upgrade on a server on Ubuntu 24.04.3 LTS, I cannot upgrade the package linux-firmware.

I have tried several times since yesterday morning.

The dialogue is as follows:

Do you want to continue? [Y/n] Y
Ign:1 http://archive.ubuntu.com/ubuntu noble-updates/main amd64 linux-firmware amd64 20240318.git3b128b60-0ubuntu2.22
Ign:1 http://archive.ubuntu.com/ubuntu noble-updates/main amd64 linux-firmware amd64 20240318.git3b128b60-0ubuntu2.22
Ign:1 http://archive.ubuntu.com/ubuntu noble-updates/main amd64 linux-firmware amd64 20240318.git3b128b60-0ubuntu2.22
Err:1 http://archive.ubuntu.com/ubuntu noble-updates/main amd64 linux-firmware amd64 20240318.git3b128b60-0ubuntu2.22
  503  Service Unavailable [IP: 91.189.92.24 80]
E: Failed to fetch http://archive.ubuntu.com/ubuntu/pool/main/l/linux-firmware/linux-firmware_20240318.git3b128b60-0ubuntu2.22_amd64.deb  503  Service Unavailable [IP: 91.189.92.24 80]

I have seen similar messages from 5th September 2025.
Is there really an issue with the repository now, or is this something on my side. 
I was able to install the other updates yesterday without any issue. 

Never experienced this issue in 12 years working with Ubuntu. 
Any suggestions would be appreciated.
Thanks 
jamesp

Update 21 Jan 2026 I tried again this morning and I still received the same result. However, I then changed http into https in my ubuntu.sources file. I then run apt update followed by apt upgrade and the linux-firmware was installed right away. I still don't understand why this worked as originally all the other updates were installed with the url as http. To anyone who replied, Thanks for your suggestions

jamesp

Creating venv with python 3.12 returns error with exit status 1 https://askubuntu.com/questions/1563058/creating-venv-with-python-3-12-returns-error-with-exit-status-1

I am on Ubuntu 22.04 and have installed python 3.12 via ppa following this thread. I need a >3.11 version to run some software so I intended to use the 3.12 version to create a venv. But when I try to create it I get the error:

python3.12 -m venv new_env_312
Error: Command '['/home/user/Softwares/soft312/new_env_312/bin/python3.12', '-m', 'ensurepip', '--upgrade', '--default-pip']' returned non-zero exit status 1.

I can try the same with python3.10 and it works fine

Why is this happening?

Filesystem not unmounting/logical volume not de-activating after 22.04 updates https://askubuntu.com/questions/1562893/filesystem-not-unmounting-logical-volume-not-de-activating-after-22-04-updates

I have a script that unmounts a filesystem and deactivates the associated LV for updating a snapshot. Since I updated the 22.04 server (and others to same level), when the umount takes place, the FS still shows (in LVM) as having files open - see below. As a result, the subsequent lvchange --activate n fails with an indication that the FS has open files/is busy - see below.

The only thing that seems to correct this is a reboot, but then the problem resurfaces in under 24 hours. I have tried the following checks to see what might be open/in use (none report back anything of consequence) - fuser/lsor/findmnt. FS in question is /epic/mst01/ below.

root@e-iris-trnb01:~# lvs
  LV           VG        Attr       LSize    Pool Origin Data%  Meta%  Move Log Cpy%Sync Convert
  ace1blv      ace1bvg   -wi-ao---- <170.00g
  ace2blv      ace2bvg   -wi-ao---- <170.00g
  ace3blv      ace3bvg   -wi-ao---- <170.00g
  epicaltjrnlv epicvg    -wi-ao----   18.00g
  epicjrnlv    epicvg    -wi-ao----   30.00g
  epiclv       epicvg    -wi-ao----   90.00g
  epictmplv    epicvg    -wi-ao----   10.00g
  ***mstlv        mstvg     -wi-ao---- <170.00g***
  plyblv       plybvg    -wi-ao---- <170.00g
  prepblv      prepbvg   -wi-ao---- <170.00g
  refblv       refbvg    -wi-ao---- <180.00g
  lv-epic_core ubuntu-vg -wi-ao----    5.00g
  lv-home      ubuntu-vg -wi-ao----    4.00g
  lv-swap      ubuntu-vg -wi-ao----    4.00g
  lv-tmp       ubuntu-vg -wi-ao----    4.00g
  lv-var       ubuntu-vg -wi-ao----   25.00g
  ubuntu-lv    ubuntu-vg -wi-ao----   12.00g
root@e-iris-trnb01:~# umount /epic/mst01
root@e-iris-trnb01:~# lvs
  LV           VG        Attr       LSize    Pool Origin Data%  Meta%  Move Log Cpy%Sync Convert
  ace1blv      ace1bvg   -wi-ao---- <170.00g
  ace2blv      ace2bvg   -wi-ao---- <170.00g
  ace3blv      ace3bvg   -wi-ao---- <170.00g
  epicaltjrnlv epicvg    -wi-ao----   18.00g
  epicjrnlv    epicvg    -wi-ao----   30.00g
  epiclv       epicvg    -wi-ao----   90.00g
  epictmplv    epicvg    -wi-ao----   10.00g
  ***mstlv        mstvg     -wi-ao---- <170.00g***
  plyblv       plybvg    -wi-ao---- <170.00g
  prepblv      prepbvg   -wi-ao---- <170.00g
  refblv       refbvg    -wi-ao---- <180.00g
  lv-epic_core ubuntu-vg -wi-ao----    5.00g
  lv-home      ubuntu-vg -wi-ao----    4.00g
  lv-swap      ubuntu-vg -wi-ao----    4.00g
  lv-tmp       ubuntu-vg -wi-ao----    4.00g
  lv-var       ubuntu-vg -wi-ao----   25.00g
  ubuntu-lv    ubuntu-vg -wi-ao----   12.00g
root@e-iris-trnb01:~# lvchange --activate n mstvg/mstlv
  ***Logical volume mstvg/mstlv contains a filesystem in use.***
root@e-iris-trnb01:~# lvchange --activate n -f mstvg/mstlv
  ***Logical volume mstvg/mstlv contains a filesystem in use.***
root@e-iris-trnb01:~# lvs
  LV           VG        Attr       LSize    Pool Origin Data%  Meta%  Move Log Cpy%Sync Convert
  ace1blv      ace1bvg   -wi-ao---- <170.00g
  ace2blv      ace2bvg   -wi-ao---- <170.00g
  ace3blv      ace3bvg   -wi-ao---- <170.00g
  epicaltjrnlv epicvg    -wi-ao----   18.00g
  epicjrnlv    epicvg    -wi-ao----   30.00g
  epiclv       epicvg    -wi-ao----   90.00g
  epictmplv    epicvg    -wi-ao----   10.00g
  ***mstlv        mstvg     -wi-ao---- <170.00g***
  plyblv       plybvg    -wi-ao---- <170.00g
  prepblv      prepbvg   -wi-ao---- <170.00g
  refblv       refbvg    -wi-ao---- <180.00g
  lv-epic_core ubuntu-vg -wi-ao----    5.00g
  lv-home      ubuntu-vg -wi-ao----    4.00g
  lv-swap      ubuntu-vg -wi-ao----    4.00g
  lv-tmp       ubuntu-vg -wi-ao----    4.00g
  lv-var       ubuntu-vg -wi-ao----   25.00g
  ubuntu-lv    ubuntu-vg -wi-ao----   12.00g
timed out waiting for input: auto-logout

/etc/fstab: /dev/mapper/mstvg-mstlv /epic/mst01 xfs defaults,nodev,noexec,nofail,x-systemd.before=epic.service 0 0 root@e-iris-trnb01:~# df -h|grep mst /dev/mapper/mstvg-mstlv 170G 147G 24G 87% /epic/mst01 root@e-iris-trnb01:~# umount /epic/mst01 root@e-iris-trnb01:~# df -h|grep mst root@e-iris-trnb01:~# cat /proc/self/mountinfo|grep mst root@e-iris-trnb01:~# lvs LV VG Attr LSize Pool Origin Data% Meta% Move Log Cpy%Sync Convert mstlv mstvg -wi-ao---- <170.00g –

Bluetooth not working on ASUS TUF Gaming A16 (2025) Ubuntu 24.04.3 https://askubuntu.com/questions/1555067/bluetooth-not-working-on-asus-tuf-gaming-a16-2025-ubuntu-24-04-3

I am having trouble getting Bluetooth to work on my laptop.

System information:

  • Laptop: ASUS TUF Gaming A16 (2025) – FA608UH_FA608UH
  • OS: Ubuntu 24.04.3 LTS
  • Kernel: Linux 6.14.0-28-generic
  • CPU: AMD Ryzen (260W) with integrated Radeon 780M graphics
  • Manufacturer string: ASUSTeK COMPUTER INC. ASUS TUF Gaming A16 FA608UH_FA608UH
  • Bluetooth device: Realtek RTL8852BE / RTL8852BU family (detected as "Bluetooth Radio" on usb 1-3)

Problem: Bluetooth does not work. No devices are shown in the system settings.

Logs (sudo dmesg | grep tooth):

[    0.957424] usb 1-3: Product: Bluetooth Radio
[    1.929879] Bluetooth: Core ver 2.22
[    1.929946] Bluetooth: HCI device and connection manager initialized
[    1.929952] Bluetooth: HCI socket layer initialized
[    1.929955] Bluetooth: L2CAP socket layer initialized
[    1.929962] Bluetooth: SCO socket layer initialized
[    2.190462] Bluetooth: hci0: Failed to read codec capabilities (-22)
[   74.538197] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
[   74.538204] Bluetooth: BNEP filters: protocol multicast
[   74.538211] Bluetooth: BNEP socket layer initialized
[   74.540253] Bluetooth: MGMT ver 1.23
[   74.572198] Bluetooth: RFCOMM TTY layer initialized
[   74.572214] Bluetooth: RFCOMM socket layer initialized
[   74.572223] Bluetooth: RFCOMM ver 1.11
[   74.850457] Bluetooth: hci0: Failed to read codec capabilities (-22)
[  267.666573] Bluetooth: hci0: Failed to read codec capabilities (-22)
[  267.676213] Bluetooth: MGMT ver 1.23
[ 1276.265924] Bluetooth: hci0: Failed to read codec capabilities (-22)
[ 1276.275584] Bluetooth: MGMT ver 1.23
[ 1336.982084] Bluetooth: hci0: Failed to read codec capabilities (-22)
[ 1336.991594] Bluetooth: MGMT ver 1.23
[ 1898.398387] Bluetooth: hci0: Failed to read codec capabilities (-22)
[ 1906.616856] Bluetooth: hci0: Failed to read codec capabilities (-22)
[ 1906.626277] Bluetooth: MGMT ver 1.23
[ 5766.198500] Bluetooth: hci0: Failed to read codec capabilities (-22)
[ 7452.775499] Bluetooth: hci0: Failed to read codec capabilities (-22)
[ 7460.121489] Bluetooth: hci0: Failed to read codec capabilities (-22)
[ 7499.022443] Bluetooth: hci0: Ignoring error of Inquiry Cancel command
[14607.245855] Bluetooth: hci0: Failed to read codec capabilities (-22)
[14617.585023] Bluetooth: hci0: Failed to read codec capabilities (-22)

What I tried so far:

  • Reinstalled bluez, bluez-tools, blueman, and linux-firmware
  • Checked kernel version (currently 6.14.0-28-generic)
  • Tried installing the community btusb DKMS module for Realtek Bluetooth
  • Still getting repeated errors: hci0: Failed to read codec capabilities (-22)

Question: How can I get the Realtek RTL8852BE/BU Bluetooth working properly on Ubuntu 24.04.3? Is there a specific driver/firmware patch required for this chipset on kernel 6.14?

Edit: The command lsusb; uname -r produces the following output:

Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 002: ID 2357:0604 TP-Link TP-Link Bluetooth USB Adapter
Bus 001 Device 003: ID 13d3:3612 IMC Networks Bluetooth Radio
Bus 001 Device 004: ID 046d:c52b Logitech, Inc. Unifying Receiver
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 003 Device 002: ID 3277:0096 Shinetech ASUS FHD webcam
Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 005 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 006 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 007 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 007 Device 002: ID 0bda:5411 Realtek Semiconductor Corp. RTS5411 Hub
Bus 007 Device 003: ID 0bda:1101 Realtek Semiconductor Corp. HID Device
Bus 008 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
6.14.0-28-generic

Edit 2: The command hciconfig -a produces the following output:

hci0:   Type: Primary  Bus: USB
    BD Address: XX:XX:XX:XX:XX:XX  ACL MTU: 1021:8  SCO MTU: 255:12
    UP RUNNING PSCAN ISCAN INQUIRY 
    RX bytes:1505 acl:0 sco:0 events:139 errors:0
    TX bytes:4778 acl:0 sco:0 commands:131 errors:0
    Features: 0xff 0xff 0xff 0xfe 0xdb 0xfd 0x7b 0x87
    Packet type: DM1 DM3 DM5 DH1 DH3 DH5 HV1 HV2 HV3 
    Link policy: RSWITCH HOLD SNIFF PARK 
    Link mode: PERIPHERAL ACCEPT 
    Name: 'ASUS-Laptop' 
    Class: 0x7c010c
    Service Classes: Rendering, Capturing, Object Transfer, Audio, Telephony
    Device Class: Computer, Laptop
    HCI Version: 5.3 (0xc)  Revision: 0xc
    LMP Version: 5.3 (0xc)  Subversion: 0x8852
    Manufacturer: Realtek Semiconductor Corporation (93)

Edit 3: The command modinfo btusb; sudo dmesg | grep -i firm produces the following output:

filename:       /lib/modules/6.14.0-29-generic/kernel/drivers/bluetooth/btusb.ko.zst
license:        GPL
version:        0.8
description:    Generic Bluetooth USB driver ver 0.8
author:         Marcel Holtmann <marcel@holtmann.org>
srcversion:     C91659349B50EC2C66CD66A
alias:          usb:v8087p0A5Ad*dc*dsc*dp*ic*isc*ip*in*
alias:          usb:v0930p*d*dc*dsc*dp*icFFisc01ip01in*
alias:          usb:v413Cp*d*dc*dsc*dp*icFFisc01ip01in*
alias:          usb:v13D3p*d*dc*dsc*dp*icFFisc01ip01in*
alias:          usb:v050Dp*d*dc*dsc*dp*icFFisc01ip01in*
alias:          usb:v0B05p*d*dc*dsc*dp*icFFisc01ip01in*
alias:          usb:v0A5Cp*d*dc*dsc*dp*icFFisc01ip01in*
alias:          usb:v04CAp*d*dc*dsc*dp*icFFisc01ip01in*
alias:          usb:v0489p*d*dc*dsc*dp*icFFisc01ip01in*
alias:          usb:v0BB4p*d*dc*dsc*dp*icFFisc01ip01in*
alias:          usb:v105Bp*d*dc*dsc*dp*icFFisc01ip01in*
alias:          usb:v19FFp0239d*dc*dsc*dp*ic*isc*ip*in*
alias:          usb:v0C10p0000d*dc*dsc*dp*ic*isc*ip*in*
alias:          usb:v0BDBp1002d*dc*dsc*dp*ic*isc*ip*in*
alias:          usb:v044Ep3002d*dc*dsc*dp*ic*isc*ip*in*
alias:          usb:v044Ep3001d*dc*dsc*dp*ic*isc*ip*in*
alias:          usb:v04BFp030Ad*dc*dsc*dp*ic*isc*ip*in*
alias:          usb:v057Cp3800d*dc*dsc*dp*ic*isc*ip*in*
alias:          usb:v05ACp8281d*dc*dsc*dp*ic*isc*ip*in*
alias:          usb:v05ACp821Ad*dc*dsc*dp*ic*isc*ip*in*
alias:          usb:v05ACp821Fd*dc*dsc*dp*ic*isc*ip*in*
alias:          usb:v05ACp821Bd*dc*dsc*dp*ic*isc*ip*in*
alias:          usb:v05ACp8218d*dc*dsc*dp*ic*isc*ip*in*
alias:          usb:v05ACp8215d*dc*dsc*dp*ic*isc*ip*in*
alias:          usb:v05ACp8213d*dc*dsc*dp*ic*isc*ip*in*
alias:          usb:v0A5Cp21E1d*dc*dsc*dp*ic*isc*ip*in*
alias:          usb:v0E8Dp763Fd*dc*dsc*dp*ic*isc*ip*in*
alias:          usb:v05ACp*d*dc*dsc*dp*icFFisc01ip01in*
alias:          usb:v*p*d*dc*dsc*dp*icE0isc01ip01in*
alias:          usb:v*p*d*dcE0dsc01dp04ic*isc*ip*in*
alias:          usb:v*p*d*dcE0dsc01dp01ic*isc*ip*in*
alias:          of:N*T*Cusb4ca,301aC*
alias:          of:N*T*Cusb4ca,301a
alias:          of:N*T*Cusbcf3,e300C*
alias:          of:N*T*Cusbcf3,e300
alias:          of:N*T*Cusb1286,204eC*
alias:          of:N*T*Cusb1286,204e
depends:        bluetooth,btmtk,btintel,btbcm,btrtl
intree:         Y
name:           btusb
retpoline:      Y
vermagic:       6.14.0-29-generic SMP preempt mod_unload modversions 
sig_id:         PKCS#7
signer:         Build time autogenerated kernel key
sig_key:        2D:4F:FB:11:40:28:46:70:59:5E:B6:BE:30:1F:11:2B:42:54:B6:EA
sig_hashalgo:   sha512
signature:      A0:8C:53:67:7C:68:EE:F7:79:CD:D8:9A:C8:AE:EC:48:DB:8C:C6:93:
        F2:DB:79:EB:03:58:AD:2E:D5:5A:EF:97:30:C4:8A:BA:54:96:3B:CC:
        89:C5:5A:AB:60:C4:2E:70:C2:40:67:BB:64:0F:5D:23:29:14:F5:58:
        D6:7E:21:32:A1:EC:B2:C8:80:DA:7F:B5:2E:68:B6:B3:D3:74:00:30:
        5D:0E:F7:BB:72:31:B0:B5:C0:BE:D1:A6:AA:07:2B:9E:9B:94:F6:1F:
        13:8D:CC:33:2C:98:91:AB:79:A1:FB:89:5E:BF:35:13:3B:20:FF:B3:
        48:2B:EF:68:80:8E:8C:C8:AF:AD:7D:9E:BE:95:3B:B0:10:1F:13:FE:
        0C:6D:37:C5:87:98:F5:E2:9B:C7:7C:53:CE:55:F8:50:81:60:27:37:
        F6:78:95:13:89:AB:59:3E:7B:87:BF:4D:CD:F7:6D:60:72:46:C4:F7:
        5F:32:2C:E4:D1:49:1F:2A:11:93:7C:06:0A:C2:A7:4A:1D:A3:0C:29:
        37:9B:D1:6A:07:9E:3A:D3:77:51:9A:21:3A:DF:D5:A3:64:F5:FB:5E:
        C3:FA:AC:0B:CF:3C:6C:A6:6B:4A:D5:07:D7:59:B5:D6:E1:52:B9:2A:
        8A:7A:23:3F:E2:3F:58:7A:68:8C:B7:8D:22:4F:57:DF:6B:EC:3A:81:
        63:E4:DA:09:EE:8C:4E:47:A0:94:2F:15:F8:89:9A:A3:49:0F:8D:42:
        B8:CA:BA:57:AD:8A:2D:D4:D5:AF:7B:E7:7F:DB:17:4E:31:7A:13:45:
        3A:35:F8:78:4C:35:31:85:F0:C5:C6:3F:11:CB:1A:37:C0:AE:3C:77:
        A0:A8:56:11:C6:55:54:B0:6C:02:F1:6F:C2:76:8B:F6:73:3E:01:20:
        54:95:7E:85:A6:B6:E2:17:83:76:AE:70:B5:7B:7B:4C:EA:2A:63:13:
        66:0B:C6:75:70:61:03:B4:5D:D4:D3:AC:24:88:32:0B:7C:13:28:52:
        9F:FC:25:DE:45:53:47:13:D1:3F:A3:4E:22:3C:C0:CF:C4:69:8A:2E:
        7C:54:21:08:9F:EF:AC:DB:E8:D5:14:21:AE:7E:5A:08:78:4A:97:69:
        B4:87:F4:D7:F0:82:29:37:6F:19:5F:EC:E0:EB:62:EA:60:8A:D9:FD:
        99:3B:73:04:36:E6:31:D6:0A:E3:A1:6C:97:E2:55:78:7D:22:F7:B6:
        7C:A6:9A:5F:03:F5:A0:08:FD:EC:80:AB:1A:02:64:02:3F:2A:61:5E:
        E2:67:89:56:99:59:51:1F:A9:B3:E8:D5:EC:7D:E9:FF:9A:CB:28:3F:
        E5:B4:71:F2:56:32:3F:EB:11:2D:34:AE
parm:           disable_scofix:Disable fixup of wrong SCO buffer size (bool)
parm:           force_scofix:Force fixup of wrong SCO buffers size (bool)
parm:           enable_autosuspend:Enable USB autosuspend by default (bool)
parm:           reset:Send HCI reset command on initialization (bool)
Some applications temporarily unresponsive after fresh boot of Ubuntu 24.04 https://askubuntu.com/questions/1519189/some-applications-temporarily-unresponsive-after-fresh-boot-of-ubuntu-24-04

Since I upgraded my system to Ubuntu 24.04 (from 23.10), I’ve been experiencing some peculiar performance issues:

In the first hour or so after booting, some applications tend to freeze suddenly upon some actions. Ubuntu then shows a dialog like “‘Application XY’ is not responding” with the option to “Force quit” or “Wait”. Usually the action completes after roughly half a minute.

For example:

  • Firefox (Snap version)
    • especially on right-click and actions in the context menu (even expanding another menu level; in these cases, an unresponsiveness dialog is shown for the main window as well as each open context menu level)
    • sometimes even input like scrolling using the mouse wheel or text input in a form field
  • Gnome Terminal
    • especially opening a new tab or switching between tabs
    • sometimes even text input

Other applications seem to be completely unaffected, I did never observe this problem for any Flatpak applications for example.

All this happens despite very low system load (CPU, memory, IO). Interestingly, after an hour or so, everything works fluently again.

My suspicion is that there is some problem with a GTK component, but I have no idea how to examine this. Any suggestions?

With Wayland, how can I mirror two displays and extend a third? https://askubuntu.com/questions/1468499/with-wayland-how-can-i-mirror-two-displays-and-extend-a-third

I want to mirror two displays (laptop and left display) and extend a third (right display).

If that is unclear, I found a substantially equivalent question at How to "overlay"/clone displays in GNOME Wayland that includes some handy images showing two displays are mirrored and one is extended.

Sadly, the only answer was to try something manual. Under Xorg, it is easy to do this with xrandr so I am disappointed that I don't find a simple solution in Wayland / Ubuntu 22.04.

I found a "manual" and quite ugly solution, but I hope there is a better way. I will eventually post the manual solution in detail if there are no better options. In brief, I saved ~/.config/monitors.xml multiple times while changing config, inferred which configuration was active and how to mirror two displays, edited a single <logicalmonitor> to contain the two <monitor> instances that are mirrored, and rebooted.

Autoinstall curtin FAIL: removing previous storage devices with RAID1 https://askubuntu.com/questions/1455104/autoinstall-curtin-fail-removing-previous-storage-devices-with-raid1

I create an ISO with autoinstall that needs to be generic. It should work on VMs, physical machines with legacy bios, EFI bios, with and without RAID.

In my autoinstall.yml, I don't have anything related to storage (as I want it to be as generic as possible for all the platforms):

#cloud-config
autoinstall:
  version: 1
  identity:
    hostname: fooapp
    username: foouser
    password: "XXXXXXX"
  network:
    ethernets: {}
    version: 2
  source:
    id: ubuntu-server-minimal
  early-commands:
  - cat /cdrom/casper/install-sources.yaml | awk 'NR>1 && /^-/{exit};1' > /run/my-sources.yaml
  - mount -o ro,bind /run/my-sources.yaml /cdrom/casper/install-sources.yaml
  late-commands:
    - cp -r /cdrom/copy_to_iso/ /target/opt/
user-data:
    runcmd:
      - |
        echo -e "\033[32mDuring installation, please don't touch until the installation will be finished....\033[0m"
        mkdir -vp /opt/INIT/ >> /root/application_installation.log 2>&1
        mv -v /opt/copy_to_iso/upgrade_or_install_packages/ /opt/ >> /root/application_installation.log 2>&1
        mv -v /opt/copy_to_iso/foo_installation/* /opt/INIT/  >> /root/application_installation.log 2>&1
        mv -v /opt/copy_to_iso/application_scripts /opt/application_scripts >> /root/application_installation.log 2>&1
        rm -rvf /opt/copy_to_iso >> /root/application_installation.log 2>&1
        bash -x /opt/application_scripts/copy_system_files.sh >> /root/application_installation.log 2>&1
        bash -x /opt/application_scripts/setup_system_config.sh install_mode >> /root/application_installation.log 2>&1
        echo -e "\033[32mInstallation was completed...\033[0m"

The installation of the ISO is done successfully in all the platforms, except EFI bios with RAID1 (UEFI Option ROM Control > Virtual RAID on CPU). Note - without RAID, same platform, it works.

During the ISO installation, it fails on the stage of cmd-install/stage-partitioning/builtin/cmd-block-meta/clear-holders on the following error:

        mdadm: stop failed, retrying in 0.2 seconds
        mdadm: stop on /dev/md127 attempt 58
        /sys/class/block/md127/md/sync_action/sync_max = 
        mdadm: setting array sync_action=idle
        mdadm: (non-fatal) write to /sys/class/block/md127/md/sync_action failed [Errno 13] Permission denied: '/sys/class/block/md127/md/sync_action'
        /sys/class/block/md127/md/sync_max/sync_max = 
        mdadm: setting array sync_{min,max}=0
        mdadm: (non-fatal) write to /sys/class/block/md127/md/sync_max failed [Errno 13] Permission denied: '/sys/class/block/md127/md/sync_max'
        Running command ['mdadm', '--manage', '--stop', '/dev/md127'] with allowed return codes [0] (capture=True)
        mdadm stop failed, retrying 
        /proc/mdstat:
        Personalities : [raid1] [linear] [multipath] [raid0] [raid6] [raid5] [raid4] [raid10] 
        md126 : active raid1 nvme0n1[1] nvme1n1[0]
              3711654912 blocks super external:/md127/0 [2/2] [UU]
              [>....................]  resync =  0.0% (3059008/3711654912) finish=286.7min speed=215522K/sec
              
        md127 : inactive nvme1n1[1](S) nvme0n1[0](S)
              10402 blocks super external:imsm
               
        unused devices: <none>
        
        mdadm: stop failed, retrying in 0.2 seconds
        mdadm: stop on /dev/md127 attempt 59
        /sys/class/block/md127/md/sync_action/sync_max = 
        mdadm: setting array sync_action=idle
        mdadm: (non-fatal) write to /sys/class/block/md127/md/sync_action failed [Errno 13] Permission denied: '/sys/class/block/md127/md/sync_action'
        /sys/class/block/md127/md/sync_max/sync_max = 
        mdadm: setting array sync_{min,max}=0
        mdadm: (non-fatal) write to /sys/class/block/md127/md/sync_max failed [Errno 13] Permission denied: '/sys/class/block/md127/md/sync_max'
        Running command ['mdadm', '--manage', '--stop', '/dev/md127'] with allowed return codes [0] (capture=True)
        mdadm stop failed, retrying 
        /proc/mdstat:
        Personalities : [raid1] [linear] [multipath] [raid0] [raid6] [raid5] [raid4] [raid10] 
        md126 : active raid1 nvme0n1[1] nvme1n1[0]
              3711654912 blocks super external:/md127/0 [2/2] [UU]
              [>....................]  resync =  0.0% (3059008/3711654912) finish=286.7min speed=215522K/sec
              
        md127 : inactive nvme1n1[1](S) nvme0n1[0](S)
              10402 blocks super external:imsm
               
        unused devices: <none>
        
        mdadm: stop failed, retrying in 0.2 seconds
        finish: cmd-install/stage-partitioning/builtin/cmd-block-meta/clear-holders: FAIL: removing previous storage devices
        TIMED BLOCK_META: 15.083
        finish: cmd-install/stage-partitioning/builtin/cmd-block-meta: FAIL: curtin command block-meta
        Traceback (most recent call last):
          File "/snap/subiquity/3698/lib/python3.8/site-packages/curtin/commands/main.py", line 202, in main
            ret = args.func(args)
          File "/snap/subiquity/3698/lib/python3.8/site-packages/curtin/log.py", line 97, in wrapper
            return log_time("TIMED %s: " % msg, func, *args, **kwargs)
          File "/snap/subiquity/3698/lib/python3.8/site-packages/curtin/log.py", line 79, in log_time
            return func(*args, **kwargs)
          File "/snap/subiquity/3698/lib/python3.8/site-packages/curtin/commands/block_meta.py", line 108, in block_meta
            meta_clear(devices, state.get('report_stack_prefix', ''))
          File "/snap/subiquity/3698/lib/python3.8/site-packages/curtin/commands/block_meta.py", line 1984, in meta_clear
            clear_holders.clear_holders(devices)
          File "/snap/subiquity/3698/lib/python3.8/site-packages/curtin/block/clear_holders.py", line 638, in clear_holders
            shutdown_function(dev_info['device'])
          File "/snap/subiquity/3698/lib/python3.8/site-packages/curtin/block/clear_holders.py", line 205, in shutdown_mdadm
            mdadm.mdadm_stop(blockdev)
          File "/snap/subiquity/3698/lib/python3.8/site-packages/curtin/block/mdadm.py", line 353, in mdadm_stop
            raise OSError('Failed to stop mdadm device %s', devpath)
        OSError: [Errno Failed to stop mdadm device %s] /dev/md127
        [Errno Failed to stop mdadm device %s] /dev/md127

Do you have a suggestion? I tried to add to early-commands: the following -

- mdadm --manage --stop /dev/md126
- mdadm --manage --stop /dev/md127

It didn't help; same error.

How to set ownership of exFAT drive when mounting? https://askubuntu.com/questions/1427782/how-to-set-ownership-of-exfat-drive-when-mounting

There are a number of threads on this topic, but I have tried every single answer/suggestion and still have had no luck. Up until a few weeks ago, my mount command worked as expected, which almost makes me think this is some sort of bug.

I have a Raspberry Pi, running the 64-bit OS:

Linux raspberrypi 5.15.61-v8+ #1579 SMP PREEMPT Fri Aug 26 11:16:44 BST 2022 aarch64

I have run the following command to install the required exFAT tools:

sudo apt-get install exfat-fuse exfat-utils

I have initialized a mount point with:

sudo mkdir /mnt/fhpro

My desired behavior is that the drive is able to be read and written to by members of a certain group. I understand I need to set ownership of the drive to the group when mounting it, as exFAT does not allow for file-specific permissions.

I have run the following commands to change ownership of the mount point itself:

sudo chown myusername /mnt/fhpro
sudo chgrp groupname /mnt/fhpro

I then mount the drive with the following command:

sudo mount -t exfat /dev/sda1 /mnt/fhpro -o uid=1001,gid=1003,rw,fmask=0002,dmask=0002

where 1001 and 1003 are the IDs of the desired user and group.

The command runs without error, and I am able to view the contents of the drive. However, the drive is owned by the pi user and group, not the user and group that were set. When I run ls -l /mnt/fhpro, I see the following output:

total 8192
drwxr-xr-x 2 pi pi 131072 Jun 27 14:11 randomdir

Additionally, ls /mnt -l reveals that the mount point itself has also switched ownership to the pi user.

Furthermore, I can not write to the directory, as touch /mnt/fhpro/test.txt results in:

touch: cannot touch '/mnt/fhpro/test.txt': Permission denied

I am at a loss for what is going on here. I had a similar mount command set in my /etc/fstab before, and the drive would always mount with ownership set as expected. Now, that is no longer the case.

Any ideas?

Edit:

The man page for mount.exfat here says:

uid=n Set the owner for all files and directories. The default is the owner of the current process.

I am running this command from the account that I would like to own the contents of the drive (i.e. not the pi user). So clearly something is up.

Kernel Panic- not syncing: VFS: Unable to mount root fs on unknown block (0,0) https://askubuntu.com/questions/1424828/kernel-panic-not-syncing-vfs-unable-to-mount-root-fs-on-unknown-block-0-0

My laptop went into hibernation during a distro upgrade. I ran into this error during boot:

Kernel Panic- not syncing: VFS: Unable to mount root fs on unknown block (0,0)

Here is a screenshot with the error details:

enter image description here

To fix it I did steps from this topic: kernel panic not syncing vfs unable to mount root fs on unknown block oo swapper not tainted

Here are all the steps I did:

ubuntu@ubuntu:~$ sudo mount /dev/mapper/ubuntu--vg-root /mnt
ubuntu@ubuntu:~$ sudo mount --bind /dev /mnt/dev
ubuntu@ubuntu:~$ sudo mount --bind /dev/pts /mnt/dev/pts/
ubuntu@ubuntu:~$ sudo mount --bind /proc/ /mnt/proc/
ubuntu@ubuntu:~$ sudo mount --bind /sys/ /mnt/sys/
ubuntu@ubuntu:~$ sudo mount --bind /run /mnt/run
ubuntu@ubuntu:~$ sudo chroot /mnt
root@ubuntu:/# uname -a
Linux ubuntu 5.4.0-26-generic #30-Ubuntu SMP Mon Apr 20 16:58:30 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux
root@ubuntu:/# cal /boot/
config-5.4.0-26-generic      System.map-5.4.0-26-generic
initrd.img-5.4.0-26-generic  
root@ubuntu:/# update-initramfs -u -k 5.4.0-26-generic
update-initramfs: Generating /boot/initrd.img-5.4.0-26-generic
root@ubuntu:/# update-grub2
Sourcing file `/etc/default/grub'
Sourcing file `/etc/default/grub.d/init-select.cfg'
/usr/sbin/grub-mkconfig: 275: cannot create /boot/grub/grub.cfg.new: Directory nonexistent

The last command had an issue.

Here is additional information:

root@ubuntu:/# grub-install -v
grub-install: Info: executing modprobe efivars 2>/dev/null.
grub-install: Info: Looking for /sys/firmware/efi ...
grub-install: Info: ... found.  
x86_64-efi will be installed for your platform.  
grub-install: Info: cannot open "/boot/grub/device.map":   
No such file or directory.   
grub-install: Error: EFI directory cannot be found.

I did all steps again with mounting boot partition.

The only change I had was here:

update-initramfs -u -k 5.4.0-26-generic
ln: Die harte Verknüpfung '/boot/initrd.img-5.4.0-26-generic.dpkg-bak' => '/boot/initrd.img-5.4.0-26-generic' konnte nicht angelegt werden: Vorgang nicht zulässig
update-initramfs: Generating /boot/initrd.img-5.4.0-26-generic

Does anyone have any idea?

Here is some additional information:

lsblk -f
sda                                                                           
├─sda1
│    vfat   FAT32       18E8-5B11                               465,6M     9% /boot
├─sda2
│    ext2   1.0         6c5d8821-3ae5-4dc7-9b50-4b1eedbd6ec5                  
└─sda3
     LVM2_m LVM2        durg23-i4ZY-vzY0-2BQU-IoGz-j4cU-JCVgvQ                
  ├─ubuntu--vg-root
  │  ext4   1.0         346cd866-61d7-4339-bd6f-043897a89b2a        7G    93% /
  └─ubuntu--vg-swap_1
     swap   1           387b8baf-13e0-4be6-8c60-659f9aa7a4b4                  
sdb  iso966 Jolie Ubuntu 20.04 LTS amd64
│                       2020-04-23-07-51-42-00                                
├─sdb1
│    iso966 Jolie Ubuntu 20.04 LTS amd64
│                       2020-04-23-07-51-42-00                                
├─sdb2
│    vfat   FAT12       1AC3-20ED                                             
└─sdb3
     ext4   1.0   writable
                        8fe94b8c-a489-4927-bd44-473c51d40ea0                  
root@ubuntu:/# [ -d /sys/firmware/efi ] && echo UEFI || echo BIOS
UEFI
root@ubuntu:/# dpkg -l | grep '^ii  grub'
ii  grub-common                                2.06-2ubuntu7                                           amd64        GRand Unified Bootloader (common files)
ii  grub-efi                                   2.06-2ubuntu7                                           amd64        GRand Unified Bootloader, version 2 (dummy package)
ii  grub-efi-amd64                             2.06-2ubuntu7                                           amd64        GRand Unified Bootloader, version 2 (EFI-AMD64 version)
ii  grub-efi-amd64-bin                         2.06-2ubuntu7                                           amd64        GRand Unified Bootloader, version 2 (EFI-AMD64 modules)
ii  grub-efi-amd64-signed                      1.180+2.06-2ubuntu7                                     amd64        GRand Unified Bootloader, version 2 (EFI-AMD64 version, signed)
ii  grub2-common 
Unknown error when mounting /dev/sdb1 https://askubuntu.com/questions/1377989/unknown-error-when-mounting-dev-sdb1

I tried sudo apt install --reinstall ntfs-3g then sudo ntfsfix /dev/sdb1, and got this:

Mounting volume... Incomplete multi-sector transfer: magic: 0x58444e49  size: 4096  usa_ofs: 40  usa_count: 6  data: 37069  usn: 37068: Input/output error
Corrupt index block signature: vcn 0 inode 5
Failed to open $Secure: No such file or directory
FAILED
Attempting to correct errors... 
Processing $MFT and $MFTMirr...
Reading $MFT... OK
Reading $MFTMirr... OK
Comparing $MFTMirr to $MFT... OK
Processing of $MFT and $MFTMirr completed successfully.
Setting required flags on partition... OK
Going to empty the journal ($LogFile)... OK
Incomplete multi-sector transfer: magic: 0x58444e49  size: 4096  usa_ofs: 40  usa_count: 6  data: 37069  usn: 37068: Input/output error
Corrupt index block signature: vcn 0 inode 5
Failed to open $Secure: No such file or directory
Remount failed: No such file or directory

And the problem persists.

Color picker doesn't work https://askubuntu.com/questions/1361692/color-picker-doesnt-work

Gpick (0.2.6) is not working anymore on my computer (Ubuntu 20.04.3 LTS). When I click on "Pick color", I do not see the display around my mouse in the small box where it should be magnified. This box stays gray. When I pick a color (by pressing the space bar) it is always black (#000000).

I have downloaded Pick (2.0.2) but it does not work either.

I have also noticed here that Gpick should be able to provide color name but it never worked on my computer. Under Edit>Color dictionaries, it seems that we can add a color dictionary file. Do you know how it works?

Many thanks for your help!

EDIT: I'm running wayland.

~$ env|grep XDG|grep -e XDG_CURRENT_DESKTOP -e XDG_SESSION_TYPE
XDG_SESSION_TYPE=wayland
XDG_CURRENT_DESKTOP=ubuntu:GNOME
Possible to encrypt external drive for use on Linux and MacOS? https://askubuntu.com/questions/1249765/possible-to-encrypt-external-drive-for-use-on-linux-and-macos

I have two computers, a Linux and a Mac. I'd like an external drive I could use on both OSs that would be password protected. Is this possible?

Error booting Linux from grub https://askubuntu.com/questions/1118998/error-booting-linux-from-grub

I have the same problem as this post. I have followed its accepted answer in this way.

I ran:

set pager=1   
ls  

This is the result of ls.

This is the result of ls

I found my Linux root file system: (hd1,gpt7), and ran the mentioned commands in the answer, but I don't know what to put instead of /dev/sda1. In other words I don't know how what is the location of my root system.

I ran commands with /dev/sda1 and get this result:

this image is before pressing enter after entering "boot" command

Result after pressing Enter:

result after pressing enter

I don't know what to do now. I couldn't comment about the information that was posted under the answer, because I don't have the enough reputation.

I can't install Ubuntu 18.04 alongside Windows 10 https://askubuntu.com/questions/1079393/i-cant-install-ubuntu-18-04-alongside-windows-10

I tried to install Ubuntu 18.04 alongside with my Windows 10 Installation recently, but it doesn't show the way to install Ubuntu alongside Windows 10. It just was not there, only erasing Windows 10 and installing Ubuntu in its place.

enter image description here

My laptop is fairly old by now (Core2 Duo and it doesn't have UEFI), and I just want to install Ubuntu as a lighter, faster alternative to Windows, which has been running a bit slowly recently.

I already installed Ubuntu in the past, when there were still the options to dual boot. When I changed my hard drive and installed Windows 10, it was gone.

Ubuntu 16.04 won't boot after partition resizing https://askubuntu.com/questions/854417/ubuntu-16-04-wont-boot-after-partition-resizing

I recently tried to resize my partition with Ubuntu 16.04 on it, and now it cannot boot. I got the "Boot-Repair disk" (https://sourceforge.net/p/boot-repair-cd/home/Home/) and tried the recommended settings.

It asked me to reinstall Grub, and I did so, and now the Grub menu won't even show up! I have been dual booting with Windows 10 and was previously able to boot to that, but now Grub does not even work! I'm not just trying to get Windows 10 to work, I'm trying to get Ubuntu to work. I have all my program files and other stuff, so if you know how to isolate them from the problem files, and reinstall Ubuntu, I'd be happy.

When I try the recommended settings it gives me the following error : Please enable a repository containing the [grub2] packages in the software sources of Ubuntu 16.04.1 LTS (sda5). Then try again.

Also here is my boot info summary from Boot-Repair : paste.ubuntu.com/23546988/

Is there any other way to reinstall Grub?

My laptop boots into BIOS after I installed Ubuntu 16.04 https://askubuntu.com/questions/784648/my-laptop-boots-into-bios-after-i-installed-ubuntu-16-04

I recently bought a ASUS laptop and Windows 10 was pre-installed in it. So I installed Ubuntu and completely erased Windows 10. But after installing Ubuntu my laptop only boots into BIOS . I checked the boot menu there is no option to boot from HDD.

Error on boot, driver ebridge is already registered, cannot enter Ubuntu https://askubuntu.com/questions/730474/error-on-boot-driver-ebridge-is-already-registered-cannot-enter-ubuntu

I run Ubuntu 15.10. After clean reinstalling drivers for my graphics card I got the following error messages while trying to boot:

Error: Driver 'ebridge' is already registered, aborting...

...after a few seconds (sometimes the error message is displayed more than once), then it continues to:

[  10.159812] [<ffffffff811fca8e>] SyS_open+0x1e/0x20
[  10.159833] [<ffffffff817fc72>] entry_SYSCALL_64_fastpath+0x16/0x75
[  10.159858] Code: ec 38 4b ff ff ff ff ff ff 7f 48 89 4d b0 65 48 8b 04 25 28 00 00 00 48 89 45 d8 31 c0 48 8b 47 10 48 89 57 10 48 89 45 b8 <48> 89 10 4c 89 6d c0 c6 45 c0 00 49 c7 45 00 02 
0 00 4c 89
[  10.159976] RIP [<ffffffff810fe75b>] __down+0x4f/0xc0
[  10.161587] RSP <ffff8800b593bb08>
[  10.163027] CR2: 0000000000000000
[  10.206597] BUG: unable to handle kernel paging request at ffffffffc327bc00
[  10.207922] IP: [<ffffffff810fe75b>] try_module_get+0x1b/0x0c0
[  10.209448] PGD 1c0f067 PUD 1c11067 PMD 233c20067 PTE 0
[  10.210943] Oops: 0000 [#2] SMP
[  10.212241] Modules linked in: nvidia(POE-) drbg ansi_cprng ctr ccm binfmt_misc bnep snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic dell_wmi dell_laptop sparse_keymap dcdbas snd_hda
cel snd_hda_codec intel_rapl snd_hda_core x86_pkg_temp_thermal intel_powerclamp arc4 snd_hwdep coretemp kvm_intel kvm crct10dif_pclmul snd_pcm crc32_pclmul aesni_intel aes_x86_64 lrw iwldum gf128mu
lue_helper ablk_helper cryptd uvcvideo videobuf2_vmalloc videobuf2_memops snd_seq_midi videobuf2_core v4l2_common snd_rawmidi joydev videodev btusb input_leds btrtl medi
10.216405] nvidia_modeset: Unknown symbol nvidia_register_module (err -2)
[  10.216421] nvidia_modeset: Unknown symbol nvidia_get_rm_ops (err -2)
[  10.216432] nvidia_modeset: Unknown symbol nvidia_unregister_module (err -2)
[  10.220972] btbc s_raw snd_seq btintel snd_seq_device bluetooth iwlwifi snd_timer snd cfg80211 lpc_ich soundcore mei_me mei shpchp dell_smo8800 mac_hid parport_pc ppdev lp parport autofs4 nou
i1915 mxm_wmi i2c_algo_bit ttm psmouse drm_kms_helper ahci r8169 drm libahci mii wmi video
[  10.225157] CPU: 6 PID: 1899 Comm: nvidia-persiste Tainted: P    D  OE 4.2.0-27-generic #32-Ubuntu
[  10.226535] Hardware name: Dell Inc.              Dell System XPS L702X/0XN71K, BIOS A19 09/07/2012
[  10.227886] task: ffff880230cca940 ti: ffff880232514000 task.ti: ffff880232514000
[  10.229208] RIP: 0010: [<ffffffff810fe75b>] [<ffffffff810fe75b>] try_module_get+0x1b/0xc0
[  10.230507] RSP: 0018:ffff880232517bc8  EFLAGS: 00010286
[  10.231787] RAX: 0000000000000000 RBX: ffffffffc327bc00 RCX: 0000000000000001
[  10.233086] RDX: 0000000000000001 RSI: ffff88035575200 RDI: ffffffffc327bc00
[  10.234421] RBP: ffff880232517be8 R08: 0000000000000000 R09: 0000000000000000
[  10.235696] R10: ffff880233965e40 R11: ffff880233965e80 R12: ffff8800b2054200
[  10.237050] R13: ffff880230e8ebe8 R14: ffff88035575200 R15: ffffffff81fbc680
[  10.238347] FS: 00007f97c07b1000(0000) GS:ffff88023e580000(0000) knlGS:0000000000000000
[  10.239649] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  10.240927] CR2: ffffffffc327bc00 CR3: 0000000232746000 CR4: 00000000000406e0
[  10.242209] Stack:
[  10.243480] ffff880230e8ebe8 ffffffffc327bc00 ffff8800b2054200 ffff880230e8ebe8
[  10.244790] ffff880232517c08 ffffffff81201b30 ffff88035575200 ffff8800b2054200
[  10.246066] ffff880232517c68 ffffffff81202186 ffff88035575200 ffff880230e8ebe8
[  10.247428] Call Trace:
[  10.248724] [<ffffffff81201b30>] cdev_get+0x20/0x50
[  10.250016] [<ffffffff81202186>] chrdev_open+0x56/0x1b0
[  10.251291] [<ffffffff811fb3cf>] do_dentry_open+0x1ff/0x310
[  10.252542] [<ffffffff81202130>] ? cdev_put+0x30/0x30
[  10.253805] [<ffffffff811fc566>] vfs_open+0x56/0x60
[  10.255159] [<ffffffff8120bb7d>] path_openat+0x1ed/0x12c0
[  10.256437] [<ffffffff8120de4a>] do_filp_open+0x8a/0x100
[  10.257709] [<ffffffff811dec47>] ? kmem_cache_alloc+0x187/0x200
[  10.258978] [<ffffffff8121b686>] ? __alloc_fd+0x46/0x110
[  10.260200] [<ffffffff811fc928>] do_sys_open+0x138/0x280
[  10.261426] [<ffffffff811fca8e>] SyS_open+0x1e/0x20
[  10.262650] [<ffffffff817fc72>] entry_SYSCALL_64_fastpath+0x16/0x75
[  10.263914] Code: 5b 5d c3 0f 1f 00 66 2e 0f 1f 84 00 00 00 00 00 66 66 66 66 90 55 48 89 e5 41 55 41 54 53 48 83 ec 08 48 85 ff 0f 84 90 00 00 00 <83> 3f 02 0f 84 83 00 00 00 8b 8f 40 03 00 00 85
74 79 8d 51
[  10.266614] RIP [<ffffffff810fe75b>] try_module_get+0x1b/0xc0
[  10.267972] RSP <ffff880232517bc8>
[  10.269333] CR2: ffffffffc327bc00

I have already tried to:

  • Run Ubuntu from USB stick, add ebridge to blacklist file (didn't help).
  • Run in safe mode, try to fix packages (didn't help).
  • Run in safe mode, scan all system files (didn't help).
Safely move (and extend) Ubuntu partition https://askubuntu.com/questions/642931/safely-move-and-extend-ubuntu-partition

I know this question has probably been asked before, but I am having trouble finding an answer specific to my problem and I really don't want to ruin my machine and have to reinstall both operating systems.

Basically:

  1. Windows 7 was installed.

  2. I installed Ubuntu with only 30GB of space.

  3. I am running out of space on Ubuntu so I want to extend the partition.

  4. I shrank the Windows partition using GParted on a live USB drive.

Now I have an unallocated partition that I would like to use to extend Ubuntu. The unallocated partition comes before the Ubuntu partition.

Is it safe to do so?

Note: I know I must use GParted through a live USB and all my data is already backed up.

Ubuntu not showing progress bar while installing https://askubuntu.com/questions/515547/ubuntu-not-showing-progress-bar-while-installing

I have been struggling to properly install Ubuntu. After creating all the partitions, and setting up things they way they are supposed to be set, I clicked on "Install now" and it started the process. The thing is that while is installing I can see the "Install" dialog with the different pictures, but I can't see in the bottom of the page the progress bar or console. At this point, more than 30 minutes have passed since I started to install it and I am not sure if it is actually installing and not showing anything, or its simply stuck and it wont install. If you guys can provide any advice, it will be very appreciated. Thanks in advance. Abraham

Multiple wireless adapters, which one is being used? https://askubuntu.com/questions/325560/multiple-wireless-adapters-which-one-is-being-used

I'm using Ubuntu 13.04 on a Dell E6410.

  1. Dell E6410 comes with a default WiFi adapter: Intel Centrino Advanced-N 6200.

  2. I additionally plugged in a Realtek rtl8192cu adapter

I can clearly see which adapter is being used from the top-right side of Ubuntu 13.04 ---- the network configuration icon, however I'm wondering, is there a way to show in the bash by using command line that:

  1. How many WiFi adapters on my system for now? ifconfig only shows there are 2 WiFi adapters, and I can see wlan1 is being used, but which adapter corresponds to wlan1 and which adapter corresponds to wlan0?

  2. I can clearly see the MAC addresses of two WiFi adapters, but lsusb only shows the connected USB devices without showing their MAC address, and the default WiFi adapter coming with the laptop is not a USB device. lshw takes me such a long time to show clearly the MAC address for the Centrino Advanced-N 6200 and the MAC address for Realtek rtl8192cu.

Is there a simple but direct way to compare both WiFi devices?

Chromebook boot pendrive https://askubuntu.com/questions/317028/chromebook-boot-pendrive

i want to create bootable ubuntu-live pendrive on chromebook. I have Crouton (13.04, KDE), but the usb-creator-kde package is not included. I tried to install Unetbootin, grub, syslinux , but none of them succeeded. Does anyone have the solutions? thanks

Reading AVCHD/M2TS files https://askubuntu.com/questions/31828/reading-avchd-m2ts-files

I have a Sony Camcorder which records AVCHD discs that contains M2TS. How can these files be read under Ubuntu?

A fresh installation of 10.10 will open the files but the playback is very choppy. The same thing goes when trying to add with OpenShot.

I found the following post which suggests to repackage with ffmpeg to an MKV file, which in my situation did not help: http://ubuntuforums.org/showthread.php?t=1627194