Can someone provide me a link to a page that explains how to properly format a post in this forum. Or is there a video example etc.. Thank you.
I have no sound on my active stereo speaker connected via SPDIF to this motherboard.
Ubuntu is 24.04LTS
Kernel is: 6.17.0-14-generic
$ aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: Generic [HD-Audio Generic], device 3: HDMI 0 [DELL S2340L]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 0: Generic [HD-Audio Generic], device 7: HDMI 1 [DELL S2340L]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 0: Generic [HD-Audio Generic], device 8: HDMI 2 [HDMI 2]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 0: Generic [HD-Audio Generic], device 9: HDMI 3 [HDMI 3]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 1: Audio [USB Audio], device 0: USB Audio [USB Audio]
Subdevices: 0/1
Subdevice #0: subdevice #0
card 1: Audio [USB Audio], device 1: USB Audio [USB Audio #1]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 1: Audio [USB Audio], device 2: USB Audio [USB Audio #2]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 1: Audio [USB Audio], device 3: USB Audio [USB Audio #3]
Subdevices: 1/1
Subdevice #0: subdevice #0
Sinks:
$ pactl list short sinks
47 alsa_output.pci-0000_72_00.1.hdmi-stereo PipeWire s32le 2ch 48000Hz SUSPENDED
178 alsa_output.usb-Generic_USB_Audio-00.iec958-stereo.2 PipeWire s32le 2ch 48000Hz RUNNING
Default speaker test:
$ speaker-test -c2 -r48000 -D default -t wav
Result: NO sound.
$ wpctl status
...
Audio
├─ Devices:
│ 46. Rembrandt Radeon High Definition Audio Controller [alsa]
│ 52. USB Audio [alsa]
│
├─ Sinks:
│ 47. Rembrandt Radeon High Definition Audio Controller Digital Stereo (HDMI) [vol: 0.40]
│ * 53. USB Audio Digital Stereo (IEC958) [vol: 1.53]
│
├─ Sink endpoints:
│
├─ Sources:
│
├─ Source endpoints:
│
└─ Streams:
64. GNOME Settings
65. monitor_FR
86. monitor_FL
87. input_FR < USB Audio:monitor_FR [active]
88. input_FL < USB Audio:monitor_FL [active]
Then I found out:
$ speaker-test -c2 -r48000 -D hw:1,2 -t wav
This finally makes sound.
I know I can do:
pactl load-module module-alsa-sink device=hw:1,2
Then select this newly created device as fallback (default) device.
But do I have some more elegant way to do this? Maybe without load-module?
I'm looking for a solution for Ubuntu 22.04 CVE-2025-37899 remediation as a new kernel is not available.
Kernel version: 6.8.0-1044-azure
VERSION="22.04.5 LTS (Jammy Jellyfish)"
I am on Ubuntu 22.04. In trying to get my laptop to suspend, I have both clicked "Suspend" from the GUI and executed sudo systemctl suspend from the command line. In both cases, the screen goes black—but not the kind of black that's a fully turned off display—for 10-20 seconds and then it comes back on. In neither case is any input being sent to the computer via keyboard or mouse. What is causing this and how do I fix it?
Why does installing programs with the terminal seem excessively slow and often fails? For example, I tried to install Inkscape using the sudo apt install inkscape terminal command, then lower down on the page I confirm by typing Y
Then it dragged out for 10-15 minutes and eventually failed with a repeating error message line that would not stop, and I had to close the window to stop it.
Warning: Tried to start delayed item https://mirror.lc/ubuntu questing/universe amd64 fig2dev amd64 1:3.2.9a-4, but failed
Then I installed the program again using the App Center, and it worked fine and finished in 5 minutes.
What is the preferred method to install programs? Now I am trying to install the Gnome Panel using the terminal and getting sort of the same thing: ##% [Waiting for headers] (I'm not sure if it will fail or not, and it is taking an extremely long time.), but I did not find Gnome Panel in the App Center.
Furthermore, I have been trying to learn how to create a desktop link to commonly used websites. Even though I have read the help menus it doesn't work. I don't understand how something that should be so common and simple is so overly complicated.
I'm using Ubuntu Studio 24.04 LTS (Long Time Support ...)
Since I had problems with the Dolphin filemanager on my NAS drives, I've tried to find a solution. I've got all my media files on NAS (video, audio, photos). To work with it, it is required, to have the media data in columns of the filemanagers details window to be able, to compare it quickly. But this depends from baloo, which is incompatible to network storage (changing inodes and device IDs after each reboot ...).
Posting this at https://bugs.kde.org/show_bug.cgi?id=515574, I had to learn, that Ubuntu 24.04 LTS uses a rather outdated version of Dolphin:
Hi, I'm afraid Dolphin 23.08.5 no longer receives updates or maintenance from KDE; active versions are 25.08.3 or newer. Please upgrade to an active version as soon as your distribution makes it available to you, or use other application distribution methods such as Flathub. Dolphin is a fast-moving project, and bugs in one version are often fixed in the next one.
If you need support for Dolphin 23.08.5, please contact your distribution, who bears the responsibility of providing help for older releases that are no longer receiving updates from KDE.
The official repositories are containing no newer versions than 23.08.5.
Actual is 25.12.2
How can I update?
As an alternative, I've tried to install nemo (Cinnamon filemanager). It works well, but the nemo-media-columns are missing for ubuntu noble. Installing it manually does not work and let nemo crashing.
Ubuntu install on Dell Inspiron 15 7586 fails with no Bootable drive found.
I am able to successfully boot from bootable Ubuntu USB, delete all the paritions, an install Ubuntu as default with Standard installation (it is connected via ethernet cable for internet access). At the end, setup requests removing installation media and press <ENTER> to reboot. I press enter, remove USB when laptop powers off. When it boots, Dell BIOS begins a memory check; then boot fails.
I have followed Dell suggestion to prepare BIOS for Ubuntu Linux.
This is not a dual-boot system. I have successfuly installed Ubuntu as a VM to verify I am not missing something. Apparently, I am. Any suggestions?
how do I configure the proxy for the snap application? I am an ubuntu user from mainland China. For some reason, the snap application has network problems. I hope someone can answer it.
yib@local:~$ cat /etc/environment
PATH="/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games:/snap/bin"
http_proxy="http://127.0.0.1:10808"
https_proxy="http://127.0.0.1:10808"
no_proxy="localhost,127.0.0.1,.local"
yib@local:~$ env | grep proxy
no_proxy=localhost,127.0.0.1,.local
https_proxy=http://127.0.0.1:10808
http_proxy=http://127.0.0.1:10808
yib@local:~$ snap get system proxy
Key Value
proxy.http http://127.0.0.1:10808
proxy.https http://127.0.0.1:10808
yib@local:~$ multipass find images
find failed: failed to download from 'https://cdimage.ubuntu.com/ubuntu-core/16/stable/current/ubuntu-core-16-amd64.img.xz': Invalid socket descriptor
yib@local:~$ getent ahosts cdimage.ubuntu.com
91.189.91.124 STREAM cdimage.ubuntu.com
91.189.91.124 DGRAM
91.189.91.124 RAW
185.125.190.37 STREAM
185.125.190.37 DGRAM
185.125.190.37 RAW
2620:2d:4000:1::17 STREAM
2620:2d:4000:1::17 DGRAM
2620:2d:4000:1::17 RAW
2001:67c:1562::28 STREAM
2001:67c:1562::28 DGRAM
2001:67c:1562::28 RAW
yib@local:~$ curl -x 127.0.0.1:10808 https://cdimage.ubuntu.com/ubuntu-core/16/stable/current/ubuntu-core-16-amd64.img.xz --output test.xz
% Total % Received % Xferd Average Speed Time Time Time Current
Dload Upload Total Spent Left Speed
100 256.8M 100 256.8M 0 0 6.36M 0 00:40 00:40 6.78M
yib@local:~$ cat /etc/os-release
PRETTY_NAME="Ubuntu Resolute Raccoon (development branch)"
NAME="Ubuntu"
VERSION_ID="26.04"
VERSION="26.04 (Resolute Raccoon)"
VERSION_CODENAME=resolute
ID=ubuntu
ID_LIKE=debian
HOME_URL="https://www.ubuntu.com/"
SUPPORT_URL="https://help.ubuntu.com/"
BUG_REPORT_URL="https://bugs.launchpad.net/ubuntu/"
PRIVACY_POLICY_URL="https://www.ubuntu.com/legal/terms-and-policies/privacy-policy"
UBUNTU_CODENAME=resolute
LOGO=ubuntu-logo
Having issues connecting with ASPERA to NCBI SRA; connection is "timing out". Tried the test connection page that IBM set-up and got the following error. Any suggestions? (Using FF).
Secure Connection Failed
An error occurred during a connection to ibmaspera.com. PR_CONNECT_RESET_ERROR
Error code: PR_CONNECT_RESET_ERROR
The page you are trying to view cannot be shown because the authenticity of the received data could not be verified.
Please contact the website owners to inform them of this problem.
Tried to use rufus to make a bootable ubuntu for use on a windows 11 laptop.
After downloading the iso image I cannot find it when asked by rufus to specify it.
I have a Toshiba C660 laptop which will not allow me to connect to the internet either by ethernet or wirelessly. The system worked perfectly in Windows prior to the installation of Ubuntu 9.4 but now even when I follow the instructions on the Ubuntu web page will not find/recognise the internet connection.
Can I down load drivers to help as the available drivers on the Toshiba webpage are for Windows and not recognised in Ubuntu Linux.
Last night my Dell 7590 on Ubuntu 24.04.3 LTS ran fine. This morning there was no network except lo and I didn’t do any updates.
ifconfig only shows lo running, but no other interfaces hard or WiFi. It’s hard to include much here because it can’t connect, so I can either add photos or hand type.
lspci shows:
3b:00.0 Network controller: Intel Corporation Wi-Fi 6 AX200 (Rev 1a)
...but I don’t see any other network devices. I don’t see errors in journalctl .
lshw -businfo just shows the AX200 and no other network devices
I’m not new to this, but I don’t dig into OSs more than I need to. Do you have any tips on what to try next?
We have been developing an architecture where the system disk has four partitions, two boot partitions and two root partitions. This allows a system running in boot1/root1 to self-install a brand new operating system on boot2/root2 and reboot on it (and vice-versa). We successfully implemented this strategy on the Intel/AMD and ARM64 RPI architectures and it has been working very well until now. With Ubuntu 25.10, the kernel can't boot anymore, as it seems unable to locate the root partition.
See the below error message.
[ 0.339898] platform axi:gpu: bcm2712_iommu_probe_device: MMU 1000005200.iommu
[ 0.340148] platform axi:gpu: bcm2712_iommu_device_group: MMU 1000005200.iommu
[ 0.340400] platform axi:gpu: Adding to iommu group 1
[ 0.340651] platform 107c500000.hvs: bcm2712_iommu_of_xlate: MMU 1000005200.iommu
[ 0.341162] platform 107c500000.hvs: bcm2712_iommu_probe_device: MMU 1000005200.iommu
[ 0.341411] platform 107c500000.hvs: bcm2712_iommu_device_group: MMU 1000005200.iommu
[ 0.341656] platform 107c500000.hvs: Adding to iommu group 1
[ 0.341914] platform axi:gpu: bcm2712_iommu_attach_dev: MMU 1000005200.iommu
[ 0.342151] platform 107c500000.hvs: bcm2712_iommu_attach_dev: MMU 1000005200.iommu
[ 0.342402] bcm2712-iommu 1000005200.iommu: bcm2712_iommu_probe: Success
[ 0.348489] bcm2712-iommu 1000005200.iommu: bcm2712_iommu_init: DEBUG_INFO = 0x20804774
[ 0.348992] bcm2712-iommu 1000005200.iommu: bcm2712_iommu_probe: Success
[ 0.349589] of_cfs_init
[ 0.349845] of_cfs_init: OK
[ 0.357878] clk: Disabling unused clocks
[ 0.420715] PM: genpd: Disabling unused power domains
[ 0.421016] check access for rdinit=/init failed: -2, ignoring
[ 0.421257] Disabling rootwait; root= is invalid.
[ 0.421577] /dev/root: Can't open blockdev
[ 0.421817] VFS: Cannot open root device "UUID=22222222-0000-0000-0000-000000000003" or unknown-block(0,0): error -6
[ 0.422056] Please append a correct "root=" boot option; here are the available partitions:
[ 0.422299] List of all bdev filesystems:
[ 0.422532] ext3
[ 0.422533] ext2
[ 0.422765] ext4
[ 0.422994] squashfs
[ 0.423218] vfat
[ 0.423441]
[ 0.423800] Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,0)
[ 1.903989] CPU: 3 UID: 0 PID: 1 Comm: swapper/0 Not tainted 6.17.0-1003-raspi #3-Ubuntu PREEMPT(full)
[ 1.913419] Hardware name: Raspberry Pi 5 Model B Rev 1.0 (DT)
[ 1.919269] Call trace:
[ 1.921716] show_stack+0x30/0x90 (C)
[ 1.925388] dump_stack_lvl+0x78/0xa0
[ 1.929057] dump_stack+0x18/0x2c
[ 1.932376] vpanic+0x160/0x378
[ 1.935521] panic+0x68/0x78
[ 1.938405] mount_root_generic+0x1f8/0x2c0
[ 1.942598] mount_root+0xa4/0xc0
[ 1.945917] prepare_namespace+0x1cc/0x258
[ 1.950022] kernel_init_freeable+0x1b4/0x1d8
[ 1.954391] kernel_init+0x38/0x178
[ 1.957887] ret_from_fork+0x10/0x20
[ 1.961469] SMP: stopping secondary CPUs
[ 1.968942] Kernel Offset: 0x207bce400000 from 0xffff800080000000
[ 1.975282] PHYS_OFFSET: 0x0
[ 1.978391] CPU features: 0x080000,00017000,24003140,0401720b
[ 1.984387] Memory Limit: none
[ 1.987673] Rebooting in 10 seconds..
_
The exact same method works perfectly on Ubuntu 24.04, both for Intel/AMD and the ARM64 Raspberry Pi 5, and on Ubuntu 25.10 for Intel/AMD.
We are using a M.2 Hat+ and it is not a SSD error as I tried with two different drives.
If I look at the contents of the SSD card (here /dev/sdf) I'm trying to boot from, this is what I have:
$ sudo losetup --find --show --partscan /dev/sdf
$ sudo blkid | grep loop37 | sort
/dev/loop37p1: LABEL_FATBOOT="BOOT1" LABEL="BOOT1" UUID="1111-0001" BLOCK_SIZE="512" TYPE="vfat" PARTLABEL="BOOT1" PARTUUID="7594305d-cf5f-4528-9c2f-169a6e52aad8"
/dev/loop37p2: LABEL_FATBOOT="BOOT2" LABEL="BOOT2" UUID="1111-0002" BLOCK_SIZE="512" TYPE="vfat" PARTLABEL="BOOT2" PARTUUID="35f3945b-7888-43ab-9350-d459b3d4a6f9"
/dev/loop37p3: LABEL="ROOT1" UUID="22222222-0000-0000-0000-000000000003" BLOCK_SIZE="4096" TYPE="ext4" PARTLABEL="ROOT1" PARTUUID="7b1ce64b-7ef0-492f-879b-df62572b7565"
/dev/loop37p4: PARTLABEL="GUARD" PARTUUID="f061c0e4-6fad-4c64-95d2-91465975adf2"
$ sudo mount /dev/loop37p1 ~/boot
$ ls ~/boot
autoboot.txt current fixup4db.dat fixup.dat meta-data start4cd.elf start4x.elf start.elf
bootcode.bin fixup4cd.dat fixup4x.dat fixup_db.dat network-config start4db.elf start_cd.elf start_x.elf
config.txt fixup4.dat fixup_cd.dat fixup_x.dat README start4.elf start_db.elf user-data
$ ls ~/boot/current
bcm2710-rpi-2-b.dtb bcm2710-rpi-zero-2.dtb bcm2711-rpi-cm4-io.dtb bcm2712-rpi-5-b.dtb cmdline.txt
bcm2710-rpi-3-b.dtb bcm2710-rpi-zero-2-w.dtb bcm2711-rpi-cm4s.dtb bcm2712-rpi-cm5-cm4io.dtb initrd.img
bcm2710-rpi-3-b-plus.dtb bcm2711-rpi-400.dtb bcm2712d0-rpi-5-b.dtb bcm2712-rpi-cm5-cm5io.dtb overlays
bcm2710-rpi-cm0.dtb bcm2711-rpi-4-b.dtb bcm2712-d-rpi-5-b.dtb bcm2712-rpi-cm5l-cm4io.dtb state
bcm2710-rpi-cm3.dtb bcm2711-rpi-cm4.dtb bcm2712-rpi-500.dtb bcm2712-rpi-cm5l-cm5io.dtb vmlinuz
$ cat ~/boot/current/cmdline.txt
console=serial0,115200 multipath=off dwc_otg.lpm_enable=0 console=tty1 root=UUID=22222222-0000-0000-0000-000000000003 rootfstype=ext4 panic=10 rootwait fixrtc
$ cat ~/boot/autoboot.txt
[all]
boot_partition=1
And the contents of the ROOT1 partition looks normal:
sudo mount /dev/loop37p3 ~/root
ls ~/root
bin boot dev etc home lib lost+found media mnt onboarding opt proc root run sbin snap srv sys tmp usr var
$ ls ~/root/boot
config-6.17.0-1003-raspi initrd.img initrd.img.old vmlinuz vmlinuz.old
config-6.17.0-1007-raspi initrd.img-6.17.0-1003-raspi System.map-6.17.0-1003-raspi vmlinuz-6.17.0-1003-raspi
config-6.17.0-12-generic initrd.img-6.17.0-1007-raspi System.map-6.17.0-1007-raspi vmlinuz-6.17.0-1007-raspi
firmware initrd.img-6.17.0-12-generic System.map-6.17.0-12-generic vmlinuz-6.17.0-12-generic
Would anyone be able to suggest me where to look for the cause of this boot error?
In the above partitions layout, it is normal that ROOT2 is absent, as our initial disk contains only one ROOT1 partition, the second ROOT2 partition being created on the fly on the first boot.
Asking help from within audacity triggers Firefox to open files it can't show although they are there :
No such file
Firefox can’t find the file at /usr/share/audacity/help/manual/man/devices_preferences.html.
Check filename syntax (whose upper/lowercase); Check file was not moved, rename or deleted. Vérifiez la syntaxe du nom de fichier (dont le respect des minuscules/majuscules) ; Vérifiez si le fichier n’a pas été déplacé, renommé ou supprimé.
Please what can I do to open these files? Replacing Firefox snap by apt does not seem to be the solution since Ubuntu forced (or at least highly recommanded) migration to snap.
Thank you
I’m experiencing severely limited CPU performance on Ubuntu in a dual-boot setup, while Windows on the same machine works perfectly.
System information
Problem description
On Ubuntu, the CPU never boosts properly: Under heavy load (builds, stress tests), CPU frequency stays around 1.6–1.8 GHz Turbo frequencies are never reached Performance is noticeably worse than Windows
On Windows:
I ran the following command as requested, letting it run idle for a few cycles and then stressing the CPU:
sudo turbostat --Summary \
--show Busy%,Bzy_MHz,IRQ,PkgWatt,PkgTmp,RAMWatt,GFXWatt,CorWatt \
--interval 5
The system was idle for several intervals, then I ran:
stress-ng --cpu 8 --timeout 30s
Below is the complete turbostat output, including idle → load → idle transition:
turbostat version 2025.02.02 - Len Brown <lenb@kernel.org>
Kernel command line: BOOT_IMAGE=/boot/vmlinuz-6.14.0-37-generic root=UUID=48a3c1f8-62c8-485b-9f9b-a229eb0db578 ro quiet splash vt.handoff=7
CPUID(0): GenuineIntel 0x16 CPUID levels
CPUID(1): family:model:stepping 0x6:8e:c (6:142:12) microcode 0x100
CPUID(6): APERF, TURBO, DTS, PTM, HWP, HWPnotify, HWPwindow, HWPepp, No-HWPpkg, EPB
cpu0: MSR_IA32_MISC_ENABLE: 0x00850089 (TCC EIST MWAIT PREFETCH TURBO)
CPUID(0x16): base_mhz: 2300 max_mhz: 4900
cpu0: cpufreq driver: intel_pstate
cpu0: cpufreq governor: powersave
cpufreq intel_pstate no_turbo: 0
cpu0: EPB: 0 (performance)
Busy% Bzy_MHz IRQ PkgTmp PkgWatt CorWatt GFXWatt RAMWatt
15.30 2346 74182 49 8.25 3.97 1.44 1.50
31.09 2060 64836 50 8.68 4.81 0.93 1.74
15.77 2257 58473 48 7.98 3.76 1.37 1.49
26.07 2069 59242 49 8.18 4.37 0.92 1.63
9.98 2444 46698 46 7.25 3.27 1.28 1.31
53.86 2098 70570 52 10.51 6.68 0.85 1.83
96.41 2248 63799 55 15.07 11.38 0.78 1.49
99.08 1625 69675 50 10.69 7.04 0.81 1.56
99.14 1498 63782 50 9.57 5.94 0.85 1.44
99.20 1490 65715 51 9.81 5.94 0.87 1.63
99.19 1526 65204 51 9.82 6.10 0.87 1.53
79.05 1578 66846 48 9.54 5.63 0.93 1.73
27.55 2189 77375 50 9.43 4.80 1.63 1.71
27.96 2137 62291 48 8.71 4.83 0.97 1.70
11.96 2305 55352 48 7.34 3.39 1.21 1.34
grep . /sys/class/powercap/intel-rapl/intel-rapl:0/constraint_*
/sys/class/powercap/intel-rapl/intel-rapl:0/constraint_0_max_power_uw:15000000
/sys/class/powercap/intel-rapl/intel-rapl:0/constraint_0_name:long_term
/sys/class/powercap/intel-rapl/intel-rapl:0/constraint_0_power_limit_uw:44000000
/sys/class/powercap/intel-rapl/intel-rapl:0/constraint_0_time_window_us:27983872
/sys/class/powercap/intel-rapl/intel-rapl:0/constraint_1_max_power_uw:0
/sys/class/powercap/intel-rapl/intel-rapl:0/constraint_1_name:short_term
/sys/class/powercap/intel-rapl/intel-rapl:0/constraint_1_power_limit_uw:51000000
/sys/class/powercap/intel-rapl/intel-rapl:0/constraint_1_time_window_us:2440
I have no thermal limiting stuff running.
Busy% Bzy_MHz IRQ PkgTmp PkgWatt CorWatt GFXWatt RAMWatt
4.25 2413 2959 45 3.95 1.68 0.11 0.47
20.82 2148 5852 47 6.56 3.96 0.13 0.83
24.18 2080 6320 47 6.79 4.18 0.09 0.92
25.48 2089 6560 47 7.20 4.44 0.22 1.01
23.03 2096 6122 47 6.72 4.17 0.04 0.90
20.47 2105 5321 46 6.43 4.06 0.09 0.64
19.89 2103 5275 47 6.32 3.98 0.08 0.62
20.79 2103 5328 47 6.46 4.02 0.12 0.69
16.73 2116 4790 45 5.84 3.52 0.08 0.59
59.78 2451 4359 55 11.03 8.50 0.24 0.62
97.24 2385 6019 55 15.09 12.74 0.10 0.53
96.97 2352 6151 55 14.99 12.48 0.17 0.64
97.16 2371 5949 55 15.06 12.63 0.12 0.58
97.17 2370 6123 56 15.10 12.63 0.08 0.52
97.36 2393 5936 55 15.13 12.80 0.08 0.50
96.91 2236 7277 56 14.37 11.41 0.40 1.08
97.44 2374 5598 55 15.02 12.71 0.05 0.51
97.07 2216 7434 53 14.55 11.24 0.58 1.14
97.23 2107 8748 54 14.28 10.08 1.22 1.82
97.16 2241 7175 56 14.80 11.44 0.69 1.22
97.47 2390 5920 56 15.35 12.88 0.09 0.52
97.78 2281 7196 55 14.70 11.95 0.12 0.88
97.78 2229 7448 55 14.10 11.50 0.05 0.88
97.19 2201 8216 56 13.81 11.07 0.24 1.03
97.25 2233 7703 56 14.04 11.34 0.14 0.91
97.99 2281 7187 56 14.48 12.00 0.13 0.80
97.34 2239 7701 54 14.32 11.47 0.24 0.99
97.32 2258 7788 56 14.40 11.60 0.11 0.83
97.77 2267 7516 56 14.24 11.78 0.12 0.78
97.78 2298 6951 56 14.37 11.97 0.09 0.71
97.54 2311 6696 56 14.58 12.16 0.11 0.67
97.32 2405 5737 57 15.35 13.08 0.05 0.46
97.13 2372 5848 58 15.06 12.70 0.08 0.51
97.21 2375 6008 58 15.32 12.74 0.19 0.66
97.43 2406 5439 57 15.49 13.11 0.12 0.54
97.42 2404 5630 58 15.41 13.04 0.08 0.50
97.49 2405 5703 58 15.34 13.03 0.08 0.50
97.30 2390 5778 58 15.16 12.87 0.05 0.44
96.93 2345 6174 58 14.87 12.45 0.12 0.57
97.14 2349 6532 57 14.85 12.46 0.08 0.53
97.17 2326 8161 58 14.72 12.35 0.08 0.58
97.52 2227 8248 57 14.10 11.51 0.13 0.91
97.63 2214 7723 56 13.80 11.26 0.11 0.88
98.05 2243 7583 58 14.26 11.57 0.20 1.00
98.28 2600 7846 60 18.16 15.59 0.09 0.95
99.59 2050 7490 54 12.48 9.86 0.19 0.89
99.71 1737 6181 53 9.89 7.46 0.11 0.68
99.68 1700 6193 54 9.44 7.06 0.11 0.64
99.71 1700 5979 53 9.42 6.97 0.08 0.78
99.64 1700 7136 54 9.48 7.07 0.11 0.67
99.66 1681 6496 53 9.44 6.94 0.17 0.73
99.66 1673 6101 53 9.20 6.80 0.11 0.60
99.67 1715 5087 54 9.23 6.86 0.12 0.48
99.71 1760 5267 54 9.49 7.19 0.07 0.42
99.63 1714 5723 54 9.52 6.92 0.17 0.54
99.69 1735 5641 54 9.59 7.09 0.12 0.48
99.70 1765 5603 54 9.59 7.23 0.12 0.47
99.67 1800 5773 54 9.79 7.43 0.12 0.47
99.62 1738 5712 54 9.68 7.08 0.18 0.53
99.74 1751 5712 54 9.47 7.21 0.06 0.41
99.68 1748 6407 54 9.72 7.24 0.20 0.56
99.64 1720 7699 54 9.82 7.21 0.16 0.71
99.65 1700 6458 53 9.71 7.07 0.17 0.73
99.68 1700 6726 53 9.61 7.06 0.12 0.67
99.69 1756 6376 54 9.92 7.48 0.12 0.68
99.71 1734 6330 54 9.62 7.30 0.07 0.61
99.66 1717 6528 54 9.70 7.20 0.17 0.74
99.67 1734 6886 54 9.76 7.34 0.12 0.70
99.73 1739 7147 54 9.79 7.35 0.09 0.73
32.67 1916 6866 51 6.95 4.35 0.13 0.90
23.66 2400 6507 52 8.22 5.47 0.24 0.97
9.10 2593 4766 50 5.44 3.00 0.16 0.59
7.30 2516 4706 49 5.40 2.90 0.19 0.61
6.22 2381 4013 50 4.68 2.29 0.15 0.52
7.27 2384 4489 49 5.22 2.68 0.17 0.58
4.82 2441 3511 49 4.48 1.96 0.14 0.49
Since I upgraded to 6.8.0-1047, I’ve been experiencing persistent networking issues. Sometimes it works, sometimes it doesn’t, and it’s getting really frustrating. What’s the best way to fix this, or how can I downgrade to an earlier version?
Here’s some context from my system:
Welcome to Ubuntu 24.04.3 LTS (GNU/Linux 6.8.0-1047-raspi aarch64)
* Documentation: https://help.ubuntu.com
* Management: https://landscape.canonical.com
* Support: https://ubuntu.com/pro
System information as of Tue Feb 10 12:53:58 EET 2026
System load: 0.0 Temperature: 67.8 C
Usage of /: 17.2% of 469.12GB Processes: 192
Memory usage: 48% Users logged in: 1
Swap usage: 0% IPv4 address for eth0: 192.168.3.2
This power supply is not capable of supplying 5A; power to peripherals
will be restricted
Failed to connect to https://changelogs.ubuntu.com/meta-release-lts.
Check your Internet connection or proxy settings
Might be a duplicate of Kernel Panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,0), but that question is almost 15 years old now and could be outdated. So here's one for this year.
Updates (and maintenance in general) are not the most glamorous part of using a computer, but necessary to keep it functioning well. Automatic updates never seem to acknowledge the actual usage patterns that I've seen, so I disabled all of that (don't even check or download) and then made some scripts to do the entire process and shutdown. Run the trigger script (confirms, and then touches a file) instead of a normal shutdown, and walk away while the other two scripts do their thing and create a logfile in case something goes wrong. The two scripts are:
startup_root.sh:
#!/bin/bash
# called from root's crontab (sudo crontab -e) @reboot
# Settle down
sleep 2
# Capture driver
cd $(dirname $0)
FLAG_UPDATE="/tmp/update"
FLAG_FIX_CAPTURE_DRIVER="./fix_driver"
if [[ -f "$FLAG_FIX_CAPTURE_DRIVER" ]]
then
rm -f "$FLAG_FIX_CAPTURE_DRIVER"
echo Fixing the Capture Driver... | ts >> ./update.log
./capture-fix.sh -y | ts >> ./update.log
# run the Poweroff at the end
else
# Normal startup
# Video loopback, so OBS doesn't ask for the password to do this itself
modprobe v4l2loopback exclusive_caps=1 card_label='OBS Virtual Camera' video_nr=99
# Update and shutdown when triggered
until [[ -f "$FLAG_UPDATE" ]]
do
sleep 10
done
rm -f "$FLAG_UPDATE"
echo >> ./update.log
# 2>&1 ./update.sh -y -noloop | ts >> ./update.log
2>&1 ./update.sh -y -noloop | ts | tee -a ./update.log | grep linux-headers
if $? # last command in the chain, which is grep
then
echo | ts >> ./update.log
echo Reboot in 5s, to Fix the Capture Driver... | ts >> ./update.log
echo | ts >> ./update.log
touch "$FLAG_FIX_CAPTURE_DRIVER"
sleep 5
reboot | ts >> ./update.log
exit 0
fi
fi
echo | ts >> ./update.log
echo Poweroff | ts >> ./update.log
echo | ts >> ./update.log
poweroff | ts >> ./update.log
update.sh:
#!/bin/bash
# called from startup_root.sh
# or from update-and-shutdown.sh
echo
echo apt update
apt update #|| exit 1
echo
echo apt full-upgrade $1
if ! apt full-upgrade $1
then
case "$2" in
"-loop")
LOOP=YES
;;
"-noloop")
LOOP=NO
;;
*)
read -p "Keep trying? (Y/N): " LOOP
;;
esac
if [[ $LOOP == [yY] || $LOOP == [yY][eE][sS] ]]
then
until apt full-upgrade -y
do
sleep 1
done
# else
# exit 2
fi
fi
echo
echo apt autoremove $1
apt autoremove $1
echo
echo snap refresh
snap refresh #|| exit 4
echo
echo Done!
exit 0
This time, the logfile update.log had this appended to it:
https://drive.google.com/file/d/1V34fEd7WBMC1R1EKIAmniEBpnmBJ1Spz/view?usp=sharing
And on the next boot, it stopped with the purple "Kernel Panic" screen, and the message in the title of this question. Holding the power button for a BIOS force-off and then GRUB'ing to the previous kernel (6.14), booted just fine, so it was no trouble at all to get the info above after the fact.
The question now is, "How can I continue to update and shutdown unattended, and always have the next boot work?" Or at least, "How to always get to the graphical desktop as the first interaction, even if other things don't necessarily work?" Maybe an automatic rollback of a bad kernel, as detected from the logfile output, so that it doesn't try to run???
After upgrading the Linux kernel on Ubuntu (via sudo apt upgrade) to a newer version (in my case 6.17.0-14-generic), Wi-Fi stopped working. The laptop uses an Intel Wi-Fi 6E AX211 adapter with the iwlwifi driver. The device was detected by PCI tools, but the Wi-Fi interface was not usable and the device showed as UNCLAIMED in lshw.
Hardware / detection output:
aeart@aeart-ThinkBook-16-G8-IAL:~$ 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
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 (more than double the size of the Windows 7 scan). 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?
If there is no way to get an equally small and crisp document scan in unbuntu, I am hoping to get the attention of the developers of an ubuntu scan app, hence challenging them to scan as good as Windows 7.
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.
I use Lubuntu 22.04.5 LTS on a Medion Akoya E4251 laptop connected with a Wacom CTH-460 pen & touch tablet.
Because I hate using mouses (RSI!) and also the touchpad as a substitute for a mouse, I use a Wacom CTH-460 pen & touch tablet's pen instead of a mouse, I disabled the touch part on the Wacom with a script that tells the device "Wacom Bamboo 2FG 4x5 Finger touch" to switch the touch part off so it won't interfere with the pen when my hand touches the surface of the tablet when using the pen. In conjunction with the pen on the Wacom tablet I also use the touchpad of my laptop just for two finger scrolling which I find very convenient, I disabled the other options for the touchpad so they do not interfere with the Wacom.
Recently the Wacom began to give me trouble because it kept on reacting again on touch. When I called the script to disable the touch on the tablet, it would not disable the touch. The reason for the failing of this script is because the device that I used in the script "Wacom Bamboo 2FG 4x5 Finger touch" can't be found anymore.
This is the script that I call for toggling the touch function of the Wacom:
#!/bin/bash -x
## Get the "Device name" or ID number
## for touch from 'xsetwacom list dev'
DEVICE="Wacom Bamboo 2FG 4x5 Finger touch"
TOUCH_STATE=`xsetwacom get "$DEVICE" touch`
if [ "$TOUCH_STATE" == "on" ]
then
echo "Touch is ON, turning OFF."
xsetwacom set "$DEVICE" touch off
else
echo "Touch is OFF, turning ON."
xsetwacom set "$DEVICE" touch on
fi
The trouble seemed to start after I applied a fix for the touchpad of my laptop that suddenly refused to work and I fixed it by using the fix given on https://github.com/lxqt/lxqt-config/issues/644 : (/etc/X11/xorg.conf.d/40-libinput.conf):
Section "InputClass"
Identifier "Tuxedo1704 Touchpad"
Driver "libinput" # <-- "synaptics" is unsupported
MatchIsTouchpad "on"
Option "Tapping" "on"
Option "TappingButtonMap" "lrm"
Option "ScrollMethod" "two-finger"
Option "NaturalScrolling" "true"
EndSection
I also gave the above configuration file a higher number (120) to be sure that it will be preferred over possible other touchpad configs, but it made no difference.
Because I thought that this fix did interfere with the Wacom touch part I also tried another fix for the touchpad on the laptop, but to no avail: (/etc/X11/xorg.conf.d/100-touchpad.conf)
Section "InputClass"
Identifier "libinput touchpad catchall"
MatchIsTouchpad "on"
MatchDevicePath "/dev/input/event*"
Driver "libinput"
EndSection
Still "Wacom Bamboo 2FG 4x5 Finger touch" is not listed when I do
xsetwacom list
this is the result.
Wacom Bamboo 2FG 4x5 Pen stylus id: 10 type: STYLUS
Wacom Bamboo 2FG 4x5 Pad pad id: 12 type: PAD
Wacom Bamboo 2FG 4x5 Pen eraser id: 16 type: ERASER
At the moment I am stuck and want help, who can point me to a solution that disables the touch part on the Wacom?
EDIT-1:
Still the problem persists and although "Wacom Bamboo 2FG 4x5 Finger touch" still not appears as a device in the xsetwacom-list of devices, I tried to apply switching the touch function to the device "Wacom Bamboo 2FG 4x5 Pad pad"...
When in terminal I give:
$ xsetwacom --set "Wacom Bamboo 2FG 4x5 Pad pad" Touch off
and then check the Touch-status by entering:
xsetwacom --get "Wacom Bamboo 2FG 4x5 Pad pad" Touch
off
As you can see it acts as if the response off signals that the touch function has been disabled, but the Bamboo still responds to me touching it.
Also vice versa it signals getting on again, but this is all meaningless:
$ xsetwacom --set "Wacom Bamboo 2FG 4x5 Pad pad" Touch on
$ xsetwacom --set "Wacom Bamboo 2FG 4x5 Pad pad" Touch
on
After looking for clues I found that someone on Manjaro had the same problem here. To find out how this person has been helped by responses on that forum, I applied for an account there just now and now I am awaiting approval, who knows to what that may lead?
Of course I will share the results here, if any.
This issue started when I upgraded to Ubuntu version 22. I've followed various methods and solutions given on this platform, including adjusting the BIOS settings, but the issue persists. Furthermore, it alerts;
After some boot messages have appeared, the process stops at this point:
Gave up waiting for root file system device. Common problems:
- Boot args (cat /proc/cmdline)
- Check rootdelay= (did the system wait long enough?)
- Missing modules (cat /proc/modules; ls /dev
ALERT! UUID: ba785887-2695-4e94-bc0c-8f266a4bc46c does not exist. Dropping to a shell.
BusyBox v1.30.1 (Ubuntu 1:1.30.1-7ubuntu3) built-in shell (ash)
Enter 'help' for a list of built-in commands.
(initramfs)_
My hardware is Del Core i5 with 256GB storage. I do not know if it has got anything to do with the space but there is 65GB available space.
Please, anyone who has gone through the same issue recently, help me out. I am stuck and have no way out. Thanks
I can select media information entries to display in details view, but the listed columns are empty.
Width, height, duration, or any other information for pictures, sound-files or videos can't be displayed.
How can I get the correct media informations in dolphin?
System information:
Dolphin 21.12.3
Operating System: Ubuntu Studio 22.04
KDE Plasma Version: 5.24.7
KDE Frameworks Version: 5.92.0
Qt Version: 5.15.3
Kernel Version: 5.15.0-70-lowlatency (64-bit)
Graphics Platform: X11
Processors: 16 × 13th Gen Intel® Core™ i7-13700K
Memory: 62.6 GiB of RAM
Graphics Processor: NVIDIA GeForce RTX 3060/PCIe/SSE2
Additional Informations:
Dolphin shows:
A view to the information panel on the right side shows the correct data. So the information is available for dolphin.
Just to clarify the question, wether indexing has to be enabled, or not:
With indexing enabled (including content):
On my system, Dolphin does NOT show Width and Duration in its columns, but still in the preview. The display according to the first picture above has not been changed.
The pictures show also, that the path for the displayed movies and images are within the indexed path.
There must be some other settings or configurations, to get it working, but out-of-the-box it does not work on Ubundu Studio 22.04 LTS.
Just installed Ubuntu server 22.04 and as I needed a DE, followed some tutorials where most of them suggested that I can install gnome (or ubuntu-desktop) using the tasksel command.
After doing so I encountered two problems: the mouse pointer on desktop is showing as a solid gray square ⬛ and the hotspot is at upper left corner. However when I run any gui app the pointer is drawn perfectly fine.
How can I fix this issues?
I have tried to run minidlna, but I can't manage to access it from the network.
I have damaged usb drive. Tried making a new table with GParted, not finishing the operation. also tried with parted, it's printing input/output error while making GPT table.
scanned with badblocks by -w parameter, printed tons of numbers.
Every time I boot my computer, I have to unplug and plug back in my usb headphones. I tried setting it as the default audio device in settings but that doesn't work either. Any pointers toward fixing this would be greatly appreciated. The headphones work perfectly if plugged in using the standard 3.5mm jack but unfortunately not through usb.
Alsa information is available at this link as requested: http://www.alsa-project.org/db/?f=9e92513425bf37b3cef6e61338cddd0b9ee0cec0
pulseverbose.log file: https://gist.github.com/anonymous/54d02756eda4c27e7100fbdc5951b1cf
syslog: https://gist.github.com/anonymous/3a6f06cb517e0e07d1f38380af4eeb21
Problem: I followed the intructions for installing Ubuntu 16.04 over an EFI system with LUKS+LVM of this upvoted question on AskUbuntu, but I ended up with a somewhat unusable system.
The only thing that I changed was the size/order of the partitions, and the device on which I performed the partitioning.
This is the output of lsblk, the disk of interest is /dev/sdb/:
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
sda 8:0 0 931.5G 0 disk
└─sda1 8:1 0 931.5G 0 part
sdb 8:16 0 596.2G 0 disk
├─sdb1 8:17 0 976M 0 part
├─sdb2 8:18 0 977M 0 part /mnt/root/boot
└─sdb3 8:19 0 594.3G 0 part
└─crypt 252:0 0 594.3G 0 crypt
├─vgcrypt-lvcryptswap 252:1 0 16G 0 lvm
├─vgcrypt-lvcryptroot 252:2 0 50G 0 lvm /mnt/root
└─vgcrypt-lvcrypthome 252:3 0 528.3G 0 lvm
sdc 8:32 0 119.2G 0 disk
├─sdc1 8:33 0 260M 0 part
├─sdc2 8:34 0 16M 0 part
├─sdc3 8:35 0 118.5G 0 part
└─sdc4 8:36 0 499M 0 part
sdd 8:48 1 7.6G 0 disk
└─sdd1 8:49 1 7.6G 0 part /cdrom
loop0 7:0 0 1.4G 1 loop /rofs
mmcblk0 179:0 0 1.9G 0 disk
└─mmcblk0p1 179:1 0 1.9G 0 part /media/ubuntu/31FCE9E42220D4BE
The lvm in the luks partition /dev/sdb3 is called crypt and contains swap, root and home.
The remaining disks are used by windows 10, so I left them untouched.
After getting the uuid of /dev/sdb3 from blkid:
/dev/sda1: LABEL="DATA" UUID="2AE43A49E43A1791" TYPE="ntfs" PARTLABEL="Basic data partition" PARTUUID="2a7b3856-3192-47aa-8554-b6cfb2f04a8f"
/dev/sdb1: UUID="2943-F2AC" TYPE="vfat" PARTUUID="ae1b8a40-ac1a-43c7-9ea5-6a5af9ab3a8e"
/dev/sdb2: UUID="3db754a7-09c6-482f-935d-01a6eb0b73f6" TYPE="ext4" PARTUUID="6f366b6f-8a81-4b48-9c4a-430587cc036c"
/dev/sdc1: LABEL="SYSTEM" UUID="C046-94A0" TYPE="vfat" PARTLABEL="EFI system partition" PARTUUID="5476cd55-9ffe-4117-8ae9-0327ef674d98"
/dev/sdc3: LABEL="OS" UUID="5C3A4A083A49E01E" TYPE="ntfs" PARTLABEL="Basic data partition" PARTUUID="f4cfabec-46df-4b83-8fb3-3046fa637d17"
/dev/sdc4: LABEL="RECOVERY" UUID="4EAE64A2AE6483F5" TYPE="ntfs" PARTLABEL="Basic data partition" PARTUUID="96888350-a7f1-44f7-9088-84e7978f5fe0"
/dev/sdd1: UUID="B700-D919" TYPE="vfat" PARTUUID="14f70980-bceb-4945-a267-d9877f147b2a"
/dev/loop0: TYPE="squashfs"
/dev/sdb3: UUID="132a57e3-b7dd-4404-9782-944a050d3153" TYPE="crypto_LUKS" PARTUUID="0a24c795-1346-4c5d-9018-620f4bf28785"
/dev/mmcblk0p1: UUID="31FCE9E42220D4BE" TYPE="ntfs" PARTUUID="0009e3b9-01"
/dev/mapper/crypt: UUID="6wnHdE-Vr7r-lECO-PcTi-aMz9-dnQY-5wY8ne" TYPE="LVM2_member"
/dev/mapper/vgcrypt-lvcryptswap: UUID="12f1b51a-1de2-4be1-ac8b-5c7ee92cf7d6" TYPE="swap"
/dev/mapper/vgcrypt-lvcryptroot: UUID="d45bfda9-7759-4eb2-a739-d4b55c6e3ecc" TYPE="ext4"
/dev/mapper/vgcrypt-lvcrypthome: UUID="1034f3c4-aafe-4086-b4ee-61af1f96ddea" TYPE="ext4"
/dev/sdc2: PARTLABEL="Microsoft reserved partition" PARTUUID="e5ed0f27-374d-4fb0-bf52-b7d6371cea51"
/dev/mmcblk0: PTUUID="0009e3b9" PTTYPE="dos"
I updated the /etc/crypttab file within the new system as adviced by the instructions:
crypt UUID="132a57e3-b7dd-4404-9782-944a050d3153" none luks
Since I wish to be prompted for the password each time, I did not configure a password file.
Currently, my /etc/fstab/ looks as follows
# /etc/fstab: static file system information.
#
# Use 'blkid' to print the universally unique identifier for a
# device; this may be used with UUID= as a more robust way to name devices
# that works even if disks are added and removed. See fstab(5).
#
# <file system> <mount point> <type> <options> <dump> <pass>
/dev/mapper/vgcrypt-lvcryptroot / ext4 errors=remount-ro 0 1
# /boot was on /dev/sdb2 during installation
UUID=3db754a7-09c6-482f-935d-01a6eb0b73f6 /boot ext4 defaults 0 2
# /boot/efi was on /dev/sdb1 during installation
UUID=2943-F2AC /boot/efi vfat umask=0077 0 1
/dev/mapper/vgcrypt-lvcrypthome /home ext4 defaults 0 2
/dev/mapper/vgcrypt-lvcryptswap none swap sw 0 0
AFAIK, this file was automatically generated during the installation process and it looks fine.
Error:
During the boot process, I am dropped to busybox with the following error message:
Volume group not found
Cannot process volume group vgcrypt
I am somewhat puzzled by this error, so far googling doesn't seem to return any useful answer among the first page results.
Question: would anyone know what is wrong in my setup and how I could fix it?
I already tried using
# update-initramfs -u -k all
And verified that lvm2 is installed in the new system, which is Ubuntu 16.04 with kernel 4.4.0-31-generic.
In case anyone thinks that it could be useful, here is the grub.cfg file:
#
# DO NOT EDIT THIS FILE
#
# It is automatically generated by grub-mkconfig using templates
# from /etc/grub.d and settings from /etc/default/grub
#
### BEGIN /etc/grub.d/00_header ###
if [ -s $prefix/grubenv ]; then
set have_grubenv=true
load_env
fi
if [ "${next_entry}" ] ; then
set default="${next_entry}"
set next_entry=
save_env next_entry
set boot_once=true
else
set default="0"
fi
if [ x"${feature_menuentry_id}" = xy ]; then
menuentry_id_option="--id"
else
menuentry_id_option=""
fi
export menuentry_id_option
if [ "${prev_saved_entry}" ]; then
set saved_entry="${prev_saved_entry}"
save_env saved_entry
set prev_saved_entry=
save_env prev_saved_entry
set boot_once=true
fi
function savedefault {
if [ -z "${boot_once}" ]; then
saved_entry="${chosen}"
save_env saved_entry
fi
}
function recordfail {
set recordfail=1
if [ -n "${have_grubenv}" ]; then if [ -z "${boot_once}" ]; then save_env recordfail; fi; fi
}
function load_video {
if [ x$feature_all_video_module = xy ]; then
insmod all_video
else
insmod efi_gop
insmod efi_uga
insmod ieee1275_fb
insmod vbe
insmod vga
insmod video_bochs
insmod video_cirrus
fi
}
if [ x$feature_default_font_path = xy ] ; then
font=unicode
else
insmod part_gpt
insmod ext2
set root='hd1,gpt2'
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root --hint-bios=hd1,gpt2 --hint-efi=hd1,gpt2 --hint-baremetal=ahci1,gpt2 3db754a7-09c6-482f-935d-01a6eb0b73f6
else
search --no-floppy --fs-uuid --set=root 3db754a7-09c6-482f-935d-01a6eb0b73f6
fi
font="/grub/unicode.pf2"
fi
if loadfont $font ; then
set gfxmode=auto
load_video
insmod gfxterm
set locale_dir=$prefix/locale
set lang=it_IT
insmod gettext
fi
terminal_output gfxterm
if [ "${recordfail}" = 1 ] ; then
set timeout=30
else
if [ x$feature_timeout_style = xy ] ; then
set timeout_style=menu
set timeout=10
# Fallback normal timeout code in case the timeout_style feature is
# unavailable.
else
set timeout=10
fi
fi
### END /etc/grub.d/00_header ###
### BEGIN /etc/grub.d/05_debian_theme ###
set menu_color_normal=white/black
set menu_color_highlight=black/light-gray
if background_color 44,0,30,0; then
clear
fi
### END /etc/grub.d/05_debian_theme ###
### BEGIN /etc/grub.d/10_linux ###
function gfxmode {
set gfxpayload="${1}"
if [ "${1}" = "keep" ]; then
set vt_handoff=vt.handoff=7
else
set vt_handoff=
fi
}
if [ "${recordfail}" != 1 ]; then
if [ -e ${prefix}/gfxblacklist.txt ]; then
if hwmatch ${prefix}/gfxblacklist.txt 3; then
if [ ${match} = 0 ]; then
set linux_gfx_mode=keep
else
set linux_gfx_mode=text
fi
else
set linux_gfx_mode=text
fi
else
set linux_gfx_mode=keep
fi
else
set linux_gfx_mode=text
fi
export linux_gfx_mode
menuentry 'Ubuntu' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-simple-d45bfda9-7759-4eb2-a739-d4b55c6e3ecc' {
recordfail
load_video
gfxmode $linux_gfx_mode
insmod gzio
if [ x$grub_platform = xxen ]; then insmod xzio; insmod lzopio; fi
insmod part_gpt
insmod ext2
set root='hd1,gpt2'
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root --hint-bios=hd1,gpt2 --hint-efi=hd1,gpt2 --hint-baremetal=ahci1,gpt2 3db754a7-09c6-482f-935d-01a6eb0b73f6
else
search --no-floppy --fs-uuid --set=root 3db754a7-09c6-482f-935d-01a6eb0b73f6
fi
linux /vmlinuz-4.4.0-31-generic.efi.signed root=/dev/mapper/vgcrypt-lvcryptroot ro quiet splash $vt_handoff
initrd /initrd.img-4.4.0-31-generic
}
submenu 'Opzioni avanzate per Ubuntu' $menuentry_id_option 'gnulinux-advanced-d45bfda9-7759-4eb2-a739-d4b55c6e3ecc' {
menuentry 'Ubuntu, con Linux 4.4.0-31-generic' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-4.4.0-31-generic-advanced-d45bfda9-7759-4eb2-a739-d4b55c6e3ecc' {
recordfail
load_video
gfxmode $linux_gfx_mode
insmod gzio
if [ x$grub_platform = xxen ]; then insmod xzio; insmod lzopio; fi
insmod part_gpt
insmod ext2
set root='hd1,gpt2'
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root --hint-bios=hd1,gpt2 --hint-efi=hd1,gpt2 --hint-baremetal=ahci1,gpt2 3db754a7-09c6-482f-935d-01a6eb0b73f6
else
search --no-floppy --fs-uuid --set=root 3db754a7-09c6-482f-935d-01a6eb0b73f6
fi
echo 'Caricamento Linux 4.4.0-31-generic...'
linux /vmlinuz-4.4.0-31-generic.efi.signed root=/dev/mapper/vgcrypt-lvcryptroot ro quiet splash $vt_handoff nouveau.modeset=0
echo 'Caricamento ramdisk iniziale...'
initrd /initrd.img-4.4.0-31-generic
}
menuentry 'Ubuntu, with Linux 4.4.0-31-generic (upstart)' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-4.4.0-31-generic-init-upstart-d45bfda9-7759-4eb2-a739-d4b55c6e3ecc' {
recordfail
load_video
gfxmode $linux_gfx_mode
insmod gzio
if [ x$grub_platform = xxen ]; then insmod xzio; insmod lzopio; fi
insmod part_gpt
insmod ext2
set root='hd1,gpt2'
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root --hint-bios=hd1,gpt2 --hint-efi=hd1,gpt2 --hint-baremetal=ahci1,gpt2 3db754a7-09c6-482f-935d-01a6eb0b73f6
else
search --no-floppy --fs-uuid --set=root 3db754a7-09c6-482f-935d-01a6eb0b73f6
fi
echo 'Caricamento Linux 4.4.0-31-generic...'
linux /vmlinuz-4.4.0-31-generic.efi.signed root=/dev/mapper/vgcrypt-lvcryptroot ro quiet splash $vt_handoff init=/sbin/upstart
echo 'Caricamento ramdisk iniziale...'
initrd /initrd.img-4.4.0-31-generic
}
menuentry 'Ubuntu, with Linux 4.4.0-31-generic (recovery mode)' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-4.4.0-31-generic-recovery-d45bfda9-7759-4eb2-a739-d4b55c6e3ecc' {
recordfail
load_video
insmod gzio
if [ x$grub_platform = xxen ]; then insmod xzio; insmod lzopio; fi
insmod part_gpt
insmod ext2
set root='hd1,gpt2'
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root --hint-bios=hd1,gpt2 --hint-efi=hd1,gpt2 --hint-baremetal=ahci1,gpt2 3db754a7-09c6-482f-935d-01a6eb0b73f6
else
search --no-floppy --fs-uuid --set=root 3db754a7-09c6-482f-935d-01a6eb0b73f6
fi
echo 'Caricamento Linux 4.4.0-31-generic...'
linux /vmlinuz-4.4.0-31-generic.efi.signed root=/dev/mapper/vgcrypt-lvcryptroot ro recovery nomodeset
echo 'Caricamento ramdisk iniziale...'
initrd /initrd.img-4.4.0-31-generic
}
}
### END /etc/grub.d/10_linux ###
### BEGIN /etc/grub.d/20_linux_xen ###
### END /etc/grub.d/20_linux_xen ###
### BEGIN /etc/grub.d/20_memtest86+ ###
### END /etc/grub.d/20_memtest86+ ###
### BEGIN /etc/grub.d/30_os-prober ###
menuentry 'Windows Boot Manager (su /dev/sdc1)' --class windows --class os $menuentry_id_option 'osprober-efi-C046-94A0' {
insmod part_gpt
insmod fat
set root='hd2,gpt1'
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root --hint-bios=hd2,gpt1 --hint-efi=hd2,gpt1 --hint-baremetal=ahci2,gpt1 C046-94A0
else
search --no-floppy --fs-uuid --set=root C046-94A0
fi
chainloader /efi/Microsoft/Boot/bootmgfw.efi
}
set timeout_style=menu
if [ "${timeout}" = 0 ]; then
set timeout=10
fi
### END /etc/grub.d/30_os-prober ###
### BEGIN /etc/grub.d/30_uefi-firmware ###
menuentry 'System setup' $menuentry_id_option 'uefi-firmware' {
fwsetup
}
### END /etc/grub.d/30_uefi-firmware ###
### BEGIN /etc/grub.d/40_custom ###
# This file provides an easy way to add custom menu entries. Simply type the
# menu entries you want to add after this comment. Be careful not to change
# the 'exec tail' line above.
### END /etc/grub.d/40_custom ###
### BEGIN /etc/grub.d/41_custom ###
if [ -f ${config_directory}/custom.cfg ]; then
source ${config_directory}/custom.cfg
elif [ -z "${config_directory}" -a -f $prefix/custom.cfg ]; then
source $prefix/custom.cfg;
fi
### END /etc/grub.d/41_custom ###
I'm using Lenovo G580. when I turn WiFi/Bluetooth on with Fn+F5, it's actually not turning on. To turn it on, I need to restart. How can I solve this problem?
I have three scripts I need to run when I start up my Ubuntu machine, they start services I use in my development environment.
To do that, I manually open three terminals and type in the commands.
Is there any way to create a script that will open three terminals and execute one command in each of these? (Each command should be in a separate terminal window so I can see their output).