Questions tagged [kernel]
Linux is the name of the kernel used in Ubuntu as well as other GNU/Linux operating systems. Use this tag for questions related to upgrading and installing kernels, compiling, patches, and kernel modules.
8,398
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What to do with CVEs and vulnerable CPUs?
Recently a vulnerability that targets Intel CPUs and Linux OSs was reported on.
CVE-2024-2201 (aka: Inspectre Gadget / Spectre v2.0) has me rather concerned.
Q: I would like to know the correct ...
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19
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How to boot kernel 6.8 on RPi 3
I am running a Raspberry Pi 3
# tail -n 4 /proc/cpuinfo
Hardware : BCM2835
Revision : a02082
Serial : 00000000ccd8071a
Model : Raspberry Pi 3 Model B Rev 1.2
It is upgraded to the ...
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22
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Ubuntu on Azure - flood of sr0 errors in syslog even on new deployments
I am experiencing issues with installation of an Ubuntu server (22.04 LTS) on Azure using the standard portal options (either create VM and select Ubuntu or direct create Ubuntu server).
Can anyone ...
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Any pitfall of installing a different kernel for future updates?
so the current kernel in 22.04 5.15-102 has a bug you can confirm by doing a df -h and see your mounts are "temporarily unavailable" This bug completely breaks a service called Frigate that ...
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1
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75
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Downgrade to old kernel in ubuntu
I'm trying to downgrade my Ubuntu kernel version from 6.5.0-27-generic to either 4.4.0-51-generic, 4.4.0-47-generic, 4.4.0-36-generic, or 4.4.0-47-generic #68~14.04.1-Ubuntu. I've attempted several ...
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1
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120
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What happened with CIFS / SAMBA connections on Kernel 5.15.0-102-generic?
While I can 'ls' and 'mount' SMB/CIFS shares I can't in turn mount those directories to docker containers, it leads to:
Error: statfs /mnt/images: resource temporarily unavailable
exit code: 125
...
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1
answer
61
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Ubuntu Server 22.04.4 LTS on Raspberry Pi - How to downgrade the Kernel
I am currently having trouble finding a tutorial on how to downgrade the kernel of Ubuntu Server 22.04.4 LTS on the Raspberry Pi.
The currently installed kernel version is 5.15.0-1050-raspi.
The Pi ...
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22
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How frequently ubuntu OS releases security patches?
I would like to set up automatic patch through patch management tool but there is some dependencies with ubuntu kernel and i can not update directly, have to validate it first and then apply it.
Is ...
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18
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How to load kernels from source?
I'm having issue with my Internet connection and so I want to try different kernels. I'm not able to use kernel manager so I downloaded the tar files from a different machine and now I want to load ...
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25
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Multiple monitors unavailable after install of 6.5.0.27 kernel
My secondary monitor no longer works after update from 6.5.0.26 to 6.5.0.27 kernel.
Its on the HDMI port.
I booted into Windows and the monitor works fine. Booted into 6.5.0.26 monitor works fine.
I ...
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150
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Upgrade Kernel Failure from 6.5.0 to 6.8 & 6.8.5 due to libc6, libssl3t64 and libelf1t64
I am running :
Ubuntu 22.04
Kernel 6.5.0-27-generic
Device : Lenovo Legion 7 Ryzen 5900H RTX3080
Ever since the first installation, native speakers won't work. However, wired earphones and Bluetooth ...
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0
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46
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Building new kernel, need help
Someone on Reddit showed me this yesterday
https://git.kernel.org/pub/scm/linux/kernel/git/westeri/thunderbolt.git/commit/?h=next&id=9a966517a83090ee3e26e9a93a92523e2358c5b3
Looks like I should be ...
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Boot error: "shim_lock protocol not found" and "you need to load the kernel first"
I have an Asus laptop, model X555LI, with Ubuntu 23.10 on it. This is a secondary PC and I rarely use it, however, last week I used it and everything worked normally. I turned it off as always and now,...
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I'd like to know how to debug my Ubuntu boot sequence since some of my later GRUB boot options will not boot, they just hang, "for ever"
Some ubuntu linux kernels don't boot while others do. Would like to find out why and hence get information on how to debug, if possible.
When I boot my Ubuntu some GRUB entries will not boot, e.g.:
&...
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1
answer
139
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Samba connection issues after the new 6.5.0-27-generic kernel update
All the systems that are facing the following issue are running Xubuntu 22.04.4 LTS.
I am using the following command to connect to samba shares:
sudo mount.cifs //192.168.../shareName mountPath -o rw,...
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50
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Install kernel headers on 22.04
I'm new to Linux and still learning the ropes. My system is Ubuntu 22.04.4 with 6.8.1 Mainline kernel (I had to update the kernel because the default one didn't work well with my laptop).
To use some ...
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33
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Troubleshooting Various System Errors: MTRR Inconsistency, ACPI BIOS Errors, PCI Errors, and More
I'm encountering multiple errors and warnings in my system logs and need assistance troubleshooting them. Here's a summary of the issues:
1. MTRR Inconsistency 2. ACPI BIOS Errors 3. PCI Errors 4. PS/...
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1
answer
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CIFS on 22.04 LTS - has something changed between kernel 5.15.0-101-generic and 5.15.0-102-generic?
I have an Ubuntu 22.04 client connected via CIFS to an Ubuntu 22.04 server.
The mounts are done via an fstab entry similar to:
//machine.fqdn/sharename /mnt/some.directory cifs rw,credentials=/root/...
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36
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realtime kernel without ubuntu pro?
I read that the realtime kernel is available via Ubuntu Pro.
I haven't yet a Pro subscription, but I installed linux-image-realtime (5.15.0.1032.31) on my Xubuntu 22.04.4 via package manager and it ...
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Installing linux-modules only works until next reboot
I have a Raspberry Pi running Ubuntu 22.04. I think possibly the system was powered off at an inopportune moment during the installation of linux-modules-5.15.0-1050-raspi.
When I plug in an FTDI USB-...
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229
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Ubuntu 22.04 LTS 6.5.0-27 missing displays
After a routine software update using sudo apt update && sudo apt upgrade, external monitors are no longer detected.
Ubuntu is running on a Lenovo E15 laptop with an AMD CPU and integrated ...
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19
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bluetooth pair timeout on Lenovo Y7000p2024 with Ubuntu 24.04 kerne 6.5
I recently tried to install ubuntu 22.04 on my Lenovo Y7000p2024 and everything worked fine except when I tried to connect a bluetooth keyboard and bluetooth stereo I was able to see the bluetooth ...
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1
answer
88
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TuneD can't verify profile cause of missing configuration(according to the internet)
So I was crusing the Internet, trying to come up with a performant way of setting up KVM Windows Guest setup on my freshly installed Ubuntu 22.04 Host machine, I found this tutorial.
This tutorial ...
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after updating to 23.10, application crashes, wrong update sources(?) and problems installing .deb apps
Good morning, I'll start by saying what I've done so far, then I'll move on to my questions, so I can put you in context. I started using Linux with Ubuntu about two weeks ago. To install Ubuntu I ...
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1
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65
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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: ...
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0
answers
50
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linux kernel reinstall on older entry
I have linux kernel 6.5.0-26. From git I got source code for it, compiled and installed the compiled deb kernel linux image. After that ubuntu is not booting and stuck at message that waiting for ...
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mt7921e does not seem to support GCMP encryption (Ubuntu 23.10)
OS: Ubuntu 23.10
Kernel: 6.5.0-26-generic
I have Lenovo laptop with this WiFi card installed lshw -C network:
product: MT7922 802.11ax PCI Express Wireless Network Adapter
vendor: ...
-1
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1
answer
322
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Error on kernel 6.5.0-26-generic, linux-header, anbox-module
Ever since I switched to version 6.5.0-26-generic, I can't boot anymore. I have to switch back to 6.5.0-25-generic every time, and I want to fix the problems there, but as you can see for yourselves, ...
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1
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54
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what is the difference between /proc and /sys directories in Linux, I still doubt it [duplicate]
along with the previous main Q, I also have another one why can't we write in /usr even though they can be new software packages added to our system, does that mean it only saves info and data on ...
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32
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Unable to install amdgpu
Seeing amdgpu/6.2.4-1664922.22.04: added when I run dkms status. However, when I try to install it, I see the following:
Building module:
cleaning build area...(bad exit status: 2)
make -j256 ...
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0
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39
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upgrade kernel and NVidia Tesla V100 driver on azure vm
I have an Azure VM with NVidia Tesla V100 and I need upgrade the kernel from 6.2.0-1011-azure to the newest version.
VM based on NVidia image and this is some details:
Operating system Linux
Image ...
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1
answer
95
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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 '...
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0
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56
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How can I verify why I am getting a grub error (couldnt load kernel), if I have already verified the correct UUID?
I am getting the following GRUB (2.06) error when trying to boot:
"Error: File "/vmlinuz" not found, Error: You need to load the kernel first"
error message written from memory so ...
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0
answers
78
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Ubuntu 22.04.4 screen issue
I have the problem while booting as you see in the photograph below once I log in and choose refresh rate as 60 Hz there is no any problem, but when I choose 120Hz there is a problem. I tried every ...
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0
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55
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Ethernet not recognized on Ubuntu 22.04
I am running Ubuntu 22.04 (Windows 11 dual boot) using kernel verion 6.5.0-21-generic. I am running this version of the kernel because it appears that the intel wireless driver is incompatible with 6....
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35
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Possible problem of the rtw_8821ce wifi driver in 6.1 kernel
I noticed that wifi speed in my laptop decreases after rebooting the router. When I bring the laptop close to the router the speed is restored. And it does not decrease when I bring the laptop back. I ...
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0
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49
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How to uninstall ubuntu studio low latency kernel
I recently installed the ubuntu studio software alongside its low latency kernel on my vanilla ubuntu installation. I checked "allow OS to boot low latency kernel as default" and (since im ...
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1
answer
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How to insert our own code into kernel source code [duplicate]
Can I able to modify the kernel of ubuntu OS,
If yes please share the steps to change.
or
Can I able to include my own code in kernel.
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48
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Latency issues on KVM VM and kernel 6+
I'm running virtualization on Ubuntu 22.04lts host and when upgrading the kernel to 6.* we start to have issues with latency on the VM machine(qemu+libvirt). The moment I roll back to kernel 5.15 on ...
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what kernel structures are mapped in each process image?
I know that for every process image there is a part reserved for the kernel. But what structures are in there exactly? Can someone give me an exhaustive list? Thanks!
This is an image of what I am ...
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52
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Ubuntu 22.04 no longer recovering from suspend after kernel update
Acer Aspire E5-573-70MD, received an upgrade from 6.5.0-25-generic to 6.5.0-26-generic, now will not resume from suspend.
On pressing a key to wake computer, instead of the regular tty1 login screen ...
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1
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121
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Ubuntu can't connect a bluetooth headphones after a update
I recently updated my laptop to Ubuntu 23.10 (with kernel 6.5.0-26-generic).
I have a bluetooth headphones that used to connect perfectly to my laptop without any problems, but since I update my ...
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0
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24
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Cross-Compile Raspberry Pi "Kernel configuration is invalid" Error
I'm using ubuntu as a host to cross compile raspberry pi 3b+ as a target. I tried to use commands below:
sudo make ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf- -C /home/ubuntu/Desktop/workspace/linux M=...
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716
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Install kernel headers using Kernel 6.8 and Ubuntu 22.04
Apparently I'm trying to install kernel headers but it complains about libc6 being too old. I searched Google and from what I can tell upgrading it would "send the system into chaos" and ...
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X1 updating kernel from 5.14.0-1034-oem on Ubuntu 22.04.4
I have an X1, seems my kernel is 5.14.0-1034-oem.
This is a 2004 kernel, but my system is 22.04.4.
The kernel has not been updated in a long time. I suppose I need to somehow remove the OEM kernel. I'...
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0
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145
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Ubuntu 22.04 LTS and kernel module 6.5.0-25-generic does not connect to any wifi network
I have linux ubuntu installed on my Lenovo Ideapad3, with Realtek network adapter. I connect to any wifi, since last Thursday. I tried as written in many blogs, one of them works. Which was to switch ...
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1
answer
80
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VirtualBox doesn't start any VMs on Ubuntu 22.04
I installed VirtualBox form the official website but it fails to start any VMs
Trying to follow the instructions doesn't help.
I also followed this guide and this to try to solve it but didn't make ...
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1
answer
423
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ubuntu desktop 22.04 LTS kernel version: linux-6.5.0-27-generic causes my network UNCLAIMED
It seems that my Linux kernel auto-updated today, which caused my computer to lose internet access.
When I checked the hardware with the command sudo lshw -c network, I got the result of "network ...
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1
answer
89
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How can I use the real-time kernel with ZFS functionality in Ubuntu 22.04?
I'm using Ubuntu 22.04 and installed a real-time kernel. Whenever I reboot with the RT kernel, I end up in a busybox prompt saying 'ZFS module not loaded.' I tried running /sbin/depmod zfs but it didn'...
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0
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16
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ubuntu 20.0 grub.cfg is overwritten by rescue cd with older ubuntu version
I inherited a ubuntu 20.0 system that the grub.cfg was overwritten by ubuntu 19.4 version (I think). the original grub.cfg is gone without backing it up. I see all the files in /boot/vmlinuz* and /...