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.

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What happens when I install the package "linux"?

I see a package called "Linux" in Synaptic in 10.04, and I want to know what happens when I install it, without making my system unusable. Does it make a dual-boot option (I have only Ubuntu), or ...
rjh's user avatar
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How to limit number of kernels shown in boot menu? [duplicate]

Possible Duplicate: How to remove the unwanted entries from the boot menu? I want to limit the number of kernels shown in my boot screen to say only the two latest ones. How can I do this with ...
apoorv020's user avatar
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WebKit release and dependencies

I am using WebKit for navigating web pages and rendering UI in my application. I wanted to know the dependencies of WebKit with new kernel modules. How to find out that the particular version of ...
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What does the kernel message `CPU0 attaching NULL sched-domain.` mean?

Question: What does this dmesg mean? Is it bad? There is a two year old post about how this could imply degraded I/O performance, could this be/is this still true?? Background: I have been ...
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Usage of inb, inl, inw to access kernel space from user space

Could you please give me some user space examples of using inb, inl, inw to access kernel space in ubuntu? /Kanu
Renjith G's user avatar
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Error while removing the new kernel 2.6.37

I tried to install the new kernel but something went wrong and I'm trying to remove it now. The error massege is: mhd@Tarek-Laptop:~$ sudo apt-get install -f Reading package lists... Done Building ...
Tarek's user avatar
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Kernel compile error with iw_ndis.c

I have a hp pavilion dm3t with intel HD graphics running ubuntu 10.10 64 bit. I'm trying to compile and install a patched kernel according to this, https://launchpad.net/~kamalmostafa/+archive/linux-...
James's user avatar
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How can I load the standard wireless driver after I deinstall ndiswrapper?

since I have some problems with my download speed under ubuntu (see my other question) I installed ndiswrapper to load windows driver for my wifi card. Unfortunatly it didn't worked very well so I ...
NES's user avatar
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Netgear 511 wireless adapter stopped working after upgrade

Why will Netgear wireless adapter not work with SIMPLE netgear511 upgrade to UBUNTU 10.04 WHEN IT WAS WORKING PERFECTLY WITH 9.04 I upgaded from UBUNTU 9.04 on my IBM THINKPAD to 10.04 LTS. The ...
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why does this system freeze if I run any user other than root? (gdm, xdm, lxdm, etc) [closed]

I'm on an old desktop (see the hardinfo report): here Okay, the problem I have is, I'm forced to use root (which is not safe, obviously) to do anything! I can't log in as a user (except from a ...
RolandiXor's user avatar
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Kernel panic: unable to mount root fs after building mainline kernel

Similar problem as reported by another user. While booting, the system can't find /dev/sda1 and so a "kernel panic: unable to mount root fs on unknown-block (0,0)" appears on screen. I'm compiled &...
Lucas Pottersky's user avatar
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1 answer
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Why has the latest Ubuntu Pro AMI and unsupported Kernel

Short The latest ubuntu pro AMI in eu-central-1 has an unsupported Kernel which has reached the end of its livepatch support. Which AMI should I use to start a recent, working LTS 22.04 Pro Ubuntu, ...
eigenbrodtm's user avatar
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1 answer
126 views

Installed second kernel from source but getting errors booting up

I have Ubuntu 22.04, originally with kernel 6.5.0-14-generic. I followed this guide: https://phoenixnap.com/kb/build-linux-kernel to compile and install the latest kernel sources. However, now when I ...
intrigued_66's user avatar
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Error! Bad return status for module build on kernel: 6.5.0-10-generic (x86_64)

I upgraded to Ubuntu Server 23.10 from 23.04 a week ago. Yesterday, when running the routine dotfile update, I received several kernel upgrade errors to 6.5.0-10. Now it automatically boots to GRUB. ...
Chris's user avatar
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mainline utility for updating kernel is not working

I am trying to update kernel version to latest kernel with mainline utility on Ubuntu 22.04.3. However my mainline utility is not listing kernels for update. It only lists already installed kernels, ...
user3156262's user avatar
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encfs decrypting usb folder needs root permissions

I have a usb drive with an encfs encrypted folder. I usually decrypt this with encfs /media/user/DBx/enc /media/user/DBx/dec When I try this with a new Ubuntu install using 22.04.3, I get the error: ...
Mark D's user avatar
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Hardware (usb ethernet, wifi) cannot be used when a fresh installation and update using Ubuntu 22.04 LTS

the default kernel is 5.19.0-32-generic, and a fresh installation of ubuntu 22.04 LTS made it successful to be used, both the usb ethernet and the usb wifi (netgear A6210). Until I installed the ...
debug guo's user avatar
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2 answers
2k views

VirtualBox not running: Kernel driver not installed since recent update to 6.1.0 kernel (Ubuntu 22.04.2)

I was using VirtualBox (installed from Ubuntu repositories) on the day right before I installed the most recent upgrade for Ubuntu 22.04.2 LTS which installed Linux kernel 6.1.0-1015, previous kernel ...
w-sky's user avatar
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Ubuntu kernel panics / freeze after Nvidia driver installation

I've been running Ubuntu 22.10 for a few months, the machine has a RTX 2080 TI GPU. I was using the nouveau driver that was set by default, everything worked fine, but I needed some nvidia ...
Aviran's user avatar
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kernel is 5.19.0-38-generic but apt install linux-headers-generic says linux-headers-generic is already the newest version (5.15.0.58.56)

I don't know how the, recently installed, 22.04 has got in this mess but assume that a repository I added to get something in the last week caused this as I'm clearly booting into a 5.19.0-38 kernel ...
cpsyctc's user avatar
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1 answer
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How to remove Chromeos_pstore module that is loading on Ubuntu

a few weeks ago, I did a Live Boot of ChromeOS Flex on my Ubuntu 22.10 Laptop just for the sake of checkin' it out but decided not to install it but now whenever I boot Ubuntu and press 'esc' or left ...
Agastya Sharma's user avatar
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2 answers
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HDMI on AMD video card doesn't work with sound on Ubuntu 22.10

Hello today I just booted up my pc normally and the sound output is dummy output, I even reinstalled my whole OS because of that and it didn't work. This is the logs that come up during startup: 18:52:...
Kr1ner's user avatar
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1 answer
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How do you keep your Ubuntu Desktop machine updated with the last stable upgrades? (OS version, kernel, packages) [duplicate]

Following my previous post: How do i make my Intel GPU (9a78 rev 01) compatible I decided to create a different post since it got a different plot twist. It started with my machine not knowing about ...
Kar19's user avatar
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1 answer
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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 ...
J.Tho's user avatar
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1 answer
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Slow Internet Connection on Ubuntu 20.04.5 LTS with driver : rtw_8821ce

I have an issue with my internet connection while using WiFi. My computer brand is HP using Ubuntu 20.04.5 LTS with kernel 5.15.0-52-generic. Currently the speed of the internet is always below 8 Mbps,...
Almighty Kid's user avatar
1 vote
1 answer
313 views

Why would Ubuntu 22.04 Jammy send a update for Nvidia 470 driver and warn it is better to update directly?

Ubuntu 22.04 Jammy nvidia update (Ubuntu Studio) has this update and a few like it: "This package contains the Linux kernel nvidia modules for version 5.15.0-52. You likely do not want to install ...
Nishnabe's user avatar
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1 answer
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kernal version error while installing php

The currently running kernel version is 5.15.0-50-generic which is not the expected kernel version 5.15.0-52-generic. Restarting the system to load the new kernel will not be handled automatically, so ...
Bilal Bashir's user avatar
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1 answer
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modprobe: FATAL: Module snd-aloop not found / linstall inux-modules-extra-5.4.0?

Hey I'm trying to run "modprobe snd-aloop pcm_substreams=1", unfortunately I keep getting an error and can't get any further. I tried it on my local Linux as well as on my Ubuntu server ...
Alkadir's user avatar
  • 11
1 vote
1 answer
3k views

Issue with booting kernel over 5.15.0-47 ubuntu 22.04

So I have an issue with kernel update. I am running kernel 5.15.0-47-generic and tried to update it to 5.15.0-48-generic and even to 5.19.5-051905-generic. I used Ubuntu Mainline Kernel Installer for ...
studzin-sky's user avatar
1 vote
1 answer
736 views

TCP available congestion control - reno or new reno?

I use Ubuntu 20.04. sysctl net.ipv4.tcp_available_congestion_control returns: net.ipv4.tcp_available_congestion_control = reno cubic I am not sure whether reno is in fact new-reno. I see fast ...
Micha's user avatar
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1 vote
1 answer
2k views

Error! Bad return status for module build on kernel: 5.15.0-41-generic (x86_64) Consult /var/lib/dkms/nvidia/450.119.03/build/make.log for more

ubuntu version: 20.04.4 LTS uname -r : 5.15.0-41-generic When I try to run "sudo apt upgrade". It executed with the following logs.. The following packages have been kept back: libnvidia-...
Partha 's user avatar
1 vote
1 answer
2k views

Missing Release Files for Gnome3-Team PPA's, Ubuntu 22.04 [duplicate]

I have a computer where Ubuntu 22.04 was installed from scratch (i.e. not upgraded to from an earlier version of Ubuntu). Any time I ran sudo apt-get update I would get errors for both of the gnome3-...
Leigh K's user avatar
  • 283
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1 answer
819 views

Ubuntu Kernel has version 5.4.0-120, but linux-tools has version 4.15.0

I was trying to install perf by sudo apt-get install linux-tools-common linux-tools-generic linux-tools-`uname -r` , but this gives me an error saying E: Unable to locate package linux-tools-5.4.0-120-...
ra1nsq's user avatar
  • 11
1 vote
1 answer
2k views

Kernel doesn't play well with USB ports

I am using Kubuntu 22.04 LTS on an ASUS Vivobook and i have been experiencing problems with my USB ports. I tried plugging in my mouse into my computer (on all USB ports) but it wouldn't work. Upon a ...
xcell's user avatar
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1 vote
1 answer
3k views

dpkg: dependency problems prevent configuration of linux-headers when trying to update linux kernel

I downloaded all the necessary files to update the linux kernel version which is currently 5.13.0-39-generic to version 5.16.12-051612-generic : linux-headers-5.16.12-051612-generic_5.16.12-051612....
Guy's user avatar
  • 11
1 vote
1 answer
3k views

Kernel module not getting installed after upgrade [closed]

I just upgraded from 20.04 and things seem to be in order except the generic VM audio snd_hda_intel. I keep getting the error: modprobe snd-hda-intel # modprobe: FATAL: Module snd-hda-intel not found ...
alchemy's user avatar
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1 answer
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Trying to fix Docker "cgroup doesn't match target mode" with adding kernel boot parameter

I have problem with running certain Docker images: docker: Error response from daemon: failed to create shim: OCI runtime create failed: container_linux.go:380: starting container process caused: ...
Aleksandar's user avatar
1 vote
1 answer
2k views

How do I enable fips when I have fips-updates enabled?

For some reason, https://ubuntu.com/blog/running-fips-140-workloads-on-ubuntu in the enable fips section instructed to do a "ua enable fips-updates" instead of ua enable fips and now my ...
Terry's user avatar
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1 vote
2 answers
693 views

20.04 Server on RaspBerryPi 4B does not finish boot and stops at "spi-bmc2835 fe204000.spi: could not get clk: -517"

I've installed an Ubuntu Server 20.04 on a SD-card running NextCloud. Now, after a reboot it refuses to finish boot. I see: Net: eth0: ethernet@7d580000 starting USB... No working controllers found ...
understater's user avatar
1 vote
1 answer
1k views

How to bring kernel 5.8 back on 20.04

I've been using Ubuntu 20.04 in a very old computer (with a very old nVidia card) for a long time without problems, until it was automatically updated to Kernel version 5.13. I don't know what, but ...
Simón's user avatar
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1 answer
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Keyboard & mouse stop working with kernel Ubuntu-5.13.0-22.22-387-g0fc979747dec - xhci: Fix command ring pointer corruption while aborting a command

tl;dr: Keyboard & mouse don't work with certain kernels. Not asking for a workaround, I already have that. Using git bisect, I have identified the exact commit in the Ubuntu kernel repository ...
Amedee Van Gasse's user avatar
1 vote
1 answer
213 views

Old 32-bit Dell Inspiron 1300. 18.04.5 Kubuntu Installing with 3rd-party soft, LAN wire maybe fell out. Got more updates, i915 kernel module missing

Wifi not working, that one time fix ill later, but now this is weird updating error and why it came, can it be because of this happened? Posted info about comp also in answer, since was no space in ...
Kangarooo's user avatar
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1 vote
1 answer
1k views

Linux using swap when RAM is available

I am experiencing an issue where linux seems to be using swap instead of RAM. To me it looks like I've triggered a bug because: The swap seems to be used for storing data that is regularly used, not ...
s5s's user avatar
  • 111
1 vote
1 answer
507 views

oz-install failed with message "qemu-system-x86_64: warning: host doesn't support requested feature"

I was using oz-install to automize the generation of raw images, below are my config files. corey.tdl <template> <name>corey_x86_64</name> <description>CentOS 7 template&...
Corey's user avatar
  • 297
1 vote
1 answer
325 views

Errors trying to install the driver for ASUS USB-AC51 AC600

I just bought a wireless adapter USB from ASUS. It's called ASUS USB-AC51 (Wireless-AC600). I've installed the drivers from https://dlcdnets.asus.com/pub/ASUS/wireless/USB-AC51/DR_USB_AC51_V1013.zip . ...
Hashi's user avatar
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1 vote
1 answer
3k views

Ubuntu-20.04 - C header files matching your running kernel were not found

On Ubuntu-20.04LTS have installed VMWare workstation successfully. When i tried to launch, it shows below error. The below workaround couldn't help. sudo apt-get update sudo apt-get upgrade --yes ...
user4948798's user avatar
1 vote
1 answer
174 views

can not open grub menu

I'm running ubuntu 20.04 on ryzen 5500U & integrated GPU. I can't open grub menu even though I already pressed Shift / Esc button when boot up. I want to downgrade My kernel version since I can't ...
AinulBedjo's user avatar
1 vote
1 answer
2k views

How can I enable ftdi_sio on Ubuntu server 21.10 on Raspberry Pi (ARM64)?

I'm trying to get a USB serial device working. I can see the device using 'lsusb' but it never appears in '/dev'. From what I understand there's this "extra" kernel package that I ...
Gordon_Lee's user avatar
1 vote
1 answer
166 views

perf-stat does not work for 1ms time interval

I am using Ubuntu 18.04 and running the perf stat command to get some information on various hardware events for an application. I notice on doing sudo perf stat --interval-print 1, I get an error ...
noobcoder's user avatar
1 vote
1 answer
1k views

var/system/journal logs flooded with i2c_hid i2c_hid_get_input: incomplete report (14/65535)

So for the last day or two, DiskUsage keeps complaining about no disk space on my root / partition. I can mitigate this issue by editing the /etc/systemd/journald.conf and setting the SystemMaxUse=...
triplethreat78's user avatar

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