All Questions
400 questions
2
votes
1
answer
54
views
WiFi card not detected on Ubuntu 20.04 (Dual Boot)
I recently installed Ubuntu 20.04 alongside with my Windows 11 on my desktop computer. However, it says that there is no WiFi adapter.
I dug into a lot of solutions, yet not fixed.
I already turned ...
- 21
0
votes
0
answers
20
views
Ubuntu Kernel Panic locked screen
Boot failed and locked screen with error:
[ end Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,0) ]
Screen is locked, and I'm unable to type any commands.
0
votes
0
answers
31
views
Ubuntu 20.04 LTS doesn't recognize WiFi adapter (Raptor Lake) [duplicate]
I have a newer laptop with an older version of Ubuntu. The older version is required because it supports ROS1, and newer versions do not. However, my system doesn't recognize the wifi-adapter, and it ...
- 1
0
votes
0
answers
32
views
NVIDIA kernel mismatch upgraded - screen unresponsive
I received an API Mismatch for my NVIDIA kernel (when running nvidia-smi) where the current is 535.183 but when I run cat /sys/module/nvidia/version I get 535.86.05. I tried to update to 535.86.05 but ...
- 1
1
vote
1
answer
250
views
Faulty VL805/806 xHCI USB 3.0 Controller since kernel upgrade
I have PCI-E USB extension cards which are not working properly after a kernel update: USB devices are detected but dropped immediately. This means I cannot use, for example, my wireless headphone's ...
- 121
0
votes
0
answers
176
views
Fails to ipxe boot ubuntu 20.04 or 22.04 with filesystem.squashfs
Trying to netboot ubuntu 20.04 using squashfs (not the iso)
ipxe script
:20.04-boot
imgfree
kernel ${boot_server}/vmlinuz initrd=initrd ip=dhcp boot=casper netboot=url url=${boot_server}/filesystem....
0
votes
0
answers
30
views
From the shell make menucfg graphic user configuration is not appearing
I recently installed Ubuntu.
Results of sb_release -a :
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 24.04.1 LTS
Release: 24.04
Codename: noble
Results of uname -a ...
2
votes
1
answer
606
views
Error on boot Kernel panic-not syncing:
I recently upgraded my Ubuntu version from 20.04 to 22.04. Since the upgrade, I have been encountering a kernel panic error:
"Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-...
- 43
1
vote
1
answer
238
views
ubuntu 20.04 virtualbox 6.1 problem after update
Before the latest update, I was using Linux kernel 5.15.0-113 and virtualbox was ok.
VirtualBox Graphical User Interface Version 6.1.50_Ubuntu r161033
© 2004-2024 Oracle Corporation (Qt5.12.8)
After ...
- 21
0
votes
0
answers
149
views
WiFi adapter not found in Ubuntu 20.04 in HP ZBook
This question is similar to 1 and 2 with a minor difference. I have referred to both questions but with no success. Below are the details:
This is a brand new HP ZBook laptop with an Intel i7 ...
- 291
-1
votes
1
answer
620
views
Ubuntu 20.04.6 (kernel 5.4.0) - Wi-Fi Driver Intel AX211
Looking for guidance/documentation I can follow, to get wifi firmware/drivers built/backported and installed for my older kernel version.
Trying to get a very new card:
Internal Wi-Fi Antenna Intel Wi-...
- 1
0
votes
0
answers
1k
views
Cannot find "syscall_32.tbl" even though kernel source is installed
OS:
lsb_release: Ubuntu 20.04.6 LTS
uname -r: 5.15.0-97-generic
I have a camera connected to a USB network adapter via an Ethernet cable, which in turn is connected to a Linux machine via USB.
I'm ...
- 111
0
votes
0
answers
339
views
Getting "Invalid module format"
I am a newbie using Ubuntu 20.04.
I am learning about Linux module and driver development. I was trying to insert module in kernel, but I am getting the following error:
insmod: ERROR: could not ...
0
votes
0
answers
70
views
Facing unexpected shutdown issue on Ubuntu 20.04 Server
"We're experiencing unexpected shutdowns on a machine running Ubuntu 20.04 with an NVIDIA 4090 GPU. The system uses NVIDIA drivers NVIDIA-SMI 535.171.04 and kernel version 5.15.0-1052-intel-iotg. ...
0
votes
0
answers
67
views
Nvidia not working after restart (wrong driver installing)
After a restart I realized my Nvidia doesn't work (v495). Possibly due to Linux/Ubuntu upgrade at some point (I tend to leave my laptop on for days and weeks).
I uninstalled everything and trying to ...
- 1,464
0
votes
1
answer
218
views
The volume boot has only 0 bytes disk space remaining. Safe way to remove old kernels?
I have the same problem as this question, that is I get the warning:
The volume boot has only 0 bytes disk space remaining
on my Linux machine, version:
Description: Ubuntu 20.04.6 LTS
Release: ...
- 101
1
vote
1
answer
2k
views
Ubuntu 20.04 : Unable to load the ‘nvidia-drm’ kernel
I failed to install the Nvidia driver using NVIDIA-Linux-x86_64-535.154.05.run on my Ubuntu 20.04 system this morning.
At the end of the installation, an error occurs:
ERROR: Unable to load the '...
- 58
0
votes
1
answer
172
views
Ubuntu 20.04 - Kernel Panic when installing AMD Drivers
First post here, so be gentle...
I'm installed Ubuntu 20.04 Desktop onto an old desktop turned mining rig. I managed to install Ubuntu onto the HDD currently in the system, and works seamlessly, until ...
- 101
0
votes
0
answers
83
views
How to resolve ZFS userspace tools and kernel module mismatch caused by HWE automatic updates
I am on Ubuntu LTS 20.04 with kernel version 5.15.0-91-generic. I find that my ZFS user utils are version 0.8.3 and my ZFS kernel module is 2.1.5. As I understand it, not only is it risky having the ...
- 101
4
votes
0
answers
112
views
Not able to start Ubuntu 20.04 after fresh install
I have installed Ubuntu 20.04 by erasing earlier windows 10. Installation was successful but after restarting its giving me this error -
kernel panic - not syncing: VFS: Unable to mount root fs on ...
0
votes
0
answers
736
views
ubuntu kernel panic and Problems
problem:
[0.146408] x86/cpu: UMX (outside TXT) disabled by BIOS
[0.1464111] x86/cpu: SGX disabled by BIOS.
/dev/sda6: clean, 1303675/7913472 files, 28367522/31622144 blocks
run-init: can't execute '/...
0
votes
0
answers
334
views
Ubuntu 20.04 13900h intel driver kernel
I want to know about the kernel version that supports intel 13900h intel graphic drivers in ubuntu 20.04.
My laptop renders with cpu not gpu.
Can you give me informations?
0
votes
0
answers
113
views
Ubuntu 20.04 blacks out with kernels newer than 5.15.0-74-generic
Ubuntu 20.04 blacks out at booting with kernels newer than 5.15.0-74.
Now I lock the kernel to 5.15.0-73-generic.
My hardwware is iMac 21 inch mid 2011 (CPU Core i3 540, 16GB DRAM).
The video driver ...
- 43
-3
votes
1
answer
126
views
I have a question about the kernel's classification of CVEs
https://ubuntu.com/security/CVE-2023-32629
If you look at the link above, it says that there are no vulnerabilities from the above based on focal, and that focal(20.04) has been released starting from ...
- 1
2
votes
0
answers
620
views
What can I do to use the touchpad of my new laptop on Ubutntu 20.04?
My new laptop is HP OMEN 16 4080(2023 Released).And When I use the Ubuntu 20.04, its touchpad can not be detected.
wp@wp-OMEN:~$ xinput
⎡ Virtual core pointer id=2 [master ...
- 21
1
vote
0
answers
270
views
VFS: cannot open root device "nvme1n1p4" or unknown-block
I was in the process of upgrading my Ubuntu 20.04 and installing ubuntu 22.04. Unfortunately, I made an error during pressing options through the upgrade process. I decided to restart the computer and ...
- 271
1
vote
0
answers
98
views
HP 2000 Laptop Touchpad Not Responding in Ubuntu and Windows ;External Mouse Works Fine
I'm facing a persistent issue with the touchpad on my HP 2000 laptop, which is dual-booted with Ubuntu 20.04 and Windows 7. The touchpad is unresponsive and doesn't register any clicks or touches, ...
- 41
0
votes
0
answers
248
views
Either NVIDIA Driver works OR laptop hardware works - but not both - 20.04
Problem:
Either the laptop can run 20.04, kernel 5.15.0-79-generic, and the nvidia driver loads and works, OR I can update the kernel to >5.19 to enable most laptop hardware but "nvidia-smi&...
2
votes
0
answers
1k
views
Debugging Kernel Module with dynamic debug
My system:
mik@michaelUbuntu:~$ cat /etc/os-release
NAME="Ubuntu"
VERSION="20.04.6 LTS (Focal Fossa)"
ID=ubuntu
ID_LIKE=debian
PRETTY_NAME="Ubuntu 20.04.6 LTS"
...
- 61
0
votes
0
answers
79
views
My Ubuntu 20.04 gets stuck many times. keyboard and mouse also do not respond
My Ubuntu 20.04 gets stuck many times. Keyboard and mouse also do not respond. journalctl -r logs file attached while system is stuck at around 9.30 AM:
0
votes
1
answer
1k
views
Trying to install Ubuntu 22.04 on Proxmox 7.4-3
I'm trying to install Ubuntu 22.04-server on my Proxmox 7.4-3 machine. I've downloaded the ISO several times and checked the checksum, so I'm reasonably certain everything is fine with that. I've also ...
- 101
0
votes
0
answers
292
views
How to specify from which Numa node the kernel should boot from?
I have booted ubuntu os using qemu and assigned two NUMA nodes to it.Each NUMA node 0 has 4cpus and 3GB memory whereas NUMA node 1 has no cpus and 3GB memory. The kernel is booted using NUMA node 0. ...
1
vote
0
answers
142
views
ubuntu 20.04 kernel downgrade from 10.15 to 10.13 fails on update-grub
Team,
I need to downgrade my kernel and i am stuck at this step. any hints? please observe my system details and what all i did and stuck at sudo: upgrade-grub: command not found
I want to have Ubuntu,...
- 111
0
votes
1
answer
2k
views
Installing PREEMPT_RT kernel on ubuntu 20.04.5 LTS (focal)
I am trying to install a real kernel that I need for an application (controlling a UR robot) and I followed the UR driver tutorial on git hub on how to install it.
First I ran the command:
$ uname -r
...
0
votes
1
answer
165
views
Kernel panic RIP switch_mm_irqs_off first reboot after Ubuntu 20.04 installation
I got an old supermicro server and installed fresh Ubuntu 20.04, but the kernel panic during first reboot, tried Ubuntu 16.04 and 22.04, same kernel panic, is this hardware problem, kernel boot panic ...
- 21
1
vote
0
answers
201
views
Raspberry pi not booting from updated kernel running Ubuntu 20.04. How to switch to updated kernel on Pi 4?
I am running Ubuntu Server 20.04 on a Raspberry Pi 4. I recently did a sudo apt update && sudo apt full-upgrade on my server and it (maybe unsucessfully) update my kernel version.
When I run ...
- 93
-1
votes
1
answer
1k
views
After upgrading from 20.04 to 22.04 : Initramfs unpacking failed: invalid magic at start of compressed archive [closed]
As text:
[ 0.187279] Initramfs unpacking failed: invalid magic at start of compressed
archive
[ 0.373537] Kernel panic - not syncing: UFS: Unable to mount root fs on unknown
wn-block(0,0)
[ 0....
0
votes
0
answers
351
views
initramfs after upgrade Linux kernel ubuntu 20.04
After upgrading to Linux 5.15.0-60-generic from Linux 5.15.0-58-0 generic, It is not booting. It keeps hanging at initramfs. I tried the following
exit turns nothing
blkid turns nothing
dmsetup ls ...
- 1
0
votes
0
answers
90
views
focal 20.04 kernel src missing files
index;
https://git.launchpad.net/~ubuntu-kernel/ubuntu/+source/linux-raspi/+git/focal/
path;
root/scripts/selinux/genheaders/genheaders.c
code;
line 18 #include "classmap.h"
line 19 #include ...
7
votes
1
answer
24k
views
modprobe: Key was rejected by service (Ubuntu 22.04.1 Desktop ISO)
The installed Ubuntu 22.04.1 works fine, but when running the live system (ISO/USB, "Try Ubuntu") there seems to be a problem with unsigned or wrongly signed kernel modules:
modprobe zfs
...
0
votes
0
answers
156
views
Touchpad (Mouse), wifi/ethernet, and speaker does not work after upgrading kernel
I have a local machine on ubuntu (20.04, ), recently I have upgraded kernel version 5.15.0-60 generic, and after rebooting, both my Wi-Fi and Ethernet and touchpad mouse does not work. I did following ...
0
votes
0
answers
194
views
squashfs errors and kernel offset errors on Ubuntu 20.04 [duplicate]
Ubuntu 20.04 shows SQUASHFS and Kernel Offset errors.
2
votes
1
answer
1k
views
How do get my system to use the latest installed kernel?
I recently upgrade from Ubuntu 18.04 to 20.04 and then to 22.04. At least when going from 20.04 to 22.04 I got a prompt asking if I wanted to install the latest kernel, and I said yes (I can't ...
- 51
0
votes
0
answers
351
views
unable to remove old kernels after upgrading to 20.4
After updating my Ubuntu distribution from 18.04 to 20.04 I'm unable to clean up old kernels. I'm also blocked from running any update or cleanup because of that.
Currently I'm running my system on ...
- 121
0
votes
0
answers
95
views
Random screen distortion and freeze in Ubuntu 20.04/22.04
My screen randomly becomes distorted and freeze in Ubuntu 20.04/22.04. After this only hard reboot works. I have been experiencing this for 2 months now and have tried several solutions but nothing ...
- 11
0
votes
2
answers
125
views
What is the font used by Ubuntu Mainline Kernel Installer?
I have Ubuntu Mainline Kernel Installer installed on my Kubuntu 20.04.5 OS. When I want to uninstall an old kernel it gives me an unreadable output ( see picture ). I think it uses a font that I have ...
- 537
0
votes
1
answer
870
views
how to delete old lib files
is it correct/advisable to delete the old files under usr/lib/modules, if yes how to delete these directories.
drwxr-xr-x 5 root root 4096 Mar 3 2022 5.4.0-100-generic
drwxr-xr-x 5 root root 4096 ...
2
votes
1
answer
950
views
Which random generator does /dev/urandom use (LTS 20.04)
I am curious about the standard cryptographic secure random generator used by /dev/urandom in Ubuntu LTS 20.04. Can someone name the standard or provide me with a reference where I can find more ...
- 123
0
votes
0
answers
3k
views
Trying to fix "[FAILED] Failed to start Load Kernel Modules." error messages on start up
The Problem
On boot, I see a [FAILED] Failed to start Load Kernel Modules. error message.
As shown in the below images from my phone, as I am unable to enter the GUI of the OS and take a screenshot, I ...
- 33
1
vote
1
answer
5k
views
Initramfs unpacking failed: invalid magic at start of compressed archive -> Kernel panic
I recently updated my ASUS X515M laptop from Ubuntu 20.04 to 22.04, and it made my magic invalid. I work hard on my magic. Why did Ubuntu invalidate it? :(
Picture of the output after trying to boot
...
- 321