Strange kernel update for 6.2 linux

[oldgeek]

Today I updated my computer (running 23.04 with Kubuntu backports enabled) with a series of kernel updates. The new one is 6.2.0-1007-lowlatency which is supposed to boot the computer but doesn't get much past the filecheck notice, just after Grub. There were also 4 similar kernel updates, associated with 6.2.0-1005-oracle (images, modules objects for Nvidia andsignature for Nvidia. I don't recall ever seeing these before and wonder they are appearing now. A new update this evening erased the oracle kernels, but they're still on Discover. What should I do? The computer only boots when I go back to the 6.2.0-24 kernel, but that's not at the top of the list. I also see that there are some 25 updates held back, so I don't know whether to erase the lowlatency kernel or just wait until things get sorted out. And just what is a lowlatency kernel anyway? And the oracle kernels? I use btrfs, by the way,so I can go back if things get out of hand. Any ideas?

[Schwarzer Kater]

There already is another thread about this, see: https://www.kubuntuforums.net/forum/...kernel-updates

PS: In my Kubuntu 23.04 installation (with Kubuntu Backports) nothing like this happens - neither in CLI nor in Discover.

[oshunluvr]

lowlatency is a special needs kernel. Unless you're doing professional audio recording, you don't need it. There actually nothing "strange" about it not working for you, it doesn't normally work out-of-the-box.

Stick to generic kernels and you'll be fine.

[oldgeek]

I have eliminated the orale and lowlatency kernels, and it works like before, with one problem: Discover still wants to install the new kernels, and so does nala (apt). How can I get rid of these things for good? I checked the other thread, but since I have a different kernel and don't have Virtualbox installed, I thought it might be something. I don't see how I can get rid of these kernels for updates, and I don't want to have to use Discovery and have to deselect the kernels every time. There must be a better way. And I still don't understand why these kernels were in the update area to begin with--it's never happened before.

[Schwarzer Kater]

A good place to start also is your /etc/apt/sources.list and the contents of your /etc/apt/sources.list.d/ .

If you know the names of the (kernel-) packages that are suggested to be installed, you could use e.g. apt-cache depends and apt-cache rdepends to find out more.

You could possibly look through the log files in /var/log/apt/history.log* to determine how they got installed in the first place, too.

[claydoh]

I think there is a packaging bug in Ubuntu's Nvidia driver packages/dependencies somewhere, or maybe the drivers PPA with NVIDIA packages, maybe. I am seeing sporadic mentions of this in various *buntu places. No solid info on fixes, or causes.
*maybe* uninstalling the drivers, updating, and then reinstalling them. Then cleaning up any unwanted kernels.

If memory serves, something similar has happened once or twice in the past.
Goodness, I sure do miss having an Nvidia card.
(I am actually half serious, finding and fixing can be useful info to pass on to others)

[oldgeek]

A good place to start also is your /etc/apt/sources.list and the contents of your /etc/apt/sources.list.d/ .

How do I do this? I have no idea how to check whatever these are.

[Schwarzer Kater]

Content of /etc/apt/sources.list

• Open the Dolphin file manager.
• In the left panel under "Devices" click on your hard drive.
• In the main window open the folder "etc", then open the folder "apt".
• Right-click on the file "sources.list" and "open with Kate".
• You can post the contents of the file here now within CODE tags for us to check.

Contents of files within /etc/apt/sources.list.d/

• Open the Dolphin file manager.
• In the left panel under "Devices" click on your hard drive.
• In the main window open the folder "etc", then open the folder "apt" and open the folder "sources.list.d".
• If there are any files in there, right-click on them one by one and "open with Kate".
• You can post the contents of those files here now within CODE tags for us to check.

[dudley.jr]

I am running kubuntu 23.04 and yesterday Discover downloaded the kernel update and I found the same siituation with newly installed kernel 6.2.0-1007-lowlatency. The process stuck imediately after boot. I got back to 6.2.0-24. After verifying the packages downloaded and installed I checked using synaptic and I found that "linux-modules-nvidia-470-6.2.0-1007-lowlatency" was not installed. I made the install with synaptic booted again and now things work.

[Schwarzer Kater]

As oshunluvr already has pointed out: a lowlatency kernel is more targeted towards audio- or a/v-production than general use.
It should not "install by itself".

It seems that those (unwanted?) kernels could have something to do with proprietary Nvidia drivers.

In the meantime: has anybody already found out where they actually came from (for example see post # 5)?
I unfortunately cannot do that, because I don't get them at all in my Kubuntu 20.04 LTS, 22.04 LTS or 23.04 (and perhaps because I fortunately don't have to use Nvidia anymore on my own computers).

[claydoh]

It should not "install by itself".

But it is, for some. Reports on Reddit in various places as well as Ubuntu's forums. I haven't checked Ask Ubuntu.

[Snowhog]

Bug reported: https://bugs.launchpad.net/ubuntu/+s...x/+bug/2024113

[oldgeek]

I found the etc apt files and opened them with Kate, but I don't know how to send them by code to this forum as I've never done it before. I have saved the files to my hard disk, so now what do I do, simply upload them?

[Schwarzer Kater]

Copy the text in Kate - paste the text in your answer here - select the text and click on the CODE button (it has a # symbol on it).
At the beginning and at the end of your pasted text there should be CODE tags now.

[oldgeek]

Here's the second file (sources.list.d)

# deb cdrom:[Kubuntu 22.10 _Kinetic Kudu_ - Release amd64 (20221020)]/ kinetic main multiverse restricted universe

# See http://help.ubuntu.com/community/UpgradeNotes for how to upgrade to
# newer versions of the distribution.
deb http://pe.archive.ubuntu.com/ubuntu/ kinetic main restricted
# deb-src http://pe.archive.ubuntu.com/ubuntu/ kinetic main restricted

## Major bug fix updates produced after the final release of the
## distribution.
deb http://pe.archive.ubuntu.com/ubuntu/ kinetic-updates main restricted
# deb-src http://pe.archive.ubuntu.com/ubuntu/ kinetic-updates main restricted

## N.B. software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu
## team. Also, please note that software in universe WILL NOT receive any
## review or updates from the Ubuntu security team.
deb http://pe.archive.ubuntu.com/ubuntu/ kinetic universe
# deb-src http://pe.archive.ubuntu.com/ubuntu/ kinetic universe
deb http://pe.archive.ubuntu.com/ubuntu/ kinetic-updates universe
# deb-src http://pe.archive.ubuntu.com/ubuntu/ kinetic-updates universe

## N.B. software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu
## team, and may not be under a free licence. Please satisfy yourself as to
## your rights to use the software. Also, please note that software in
## multiverse WILL NOT receive any review or updates from the Ubuntu
## security team.
deb http://pe.archive.ubuntu.com/ubuntu/ kinetic multiverse
# deb-src http://pe.archive.ubuntu.com/ubuntu/ kinetic multiverse
deb http://pe.archive.ubuntu.com/ubuntu/ kinetic-updates multiverse
# deb-src http://pe.archive.ubuntu.com/ubuntu/ kinetic-updates multiverse

## N.B. software from this repository may not have been tested as
## extensively as that contained in the main release, although it includes
## newer versions of some applications which may provide useful features.
## Also, please note that software in backports WILL NOT receive any review
## or updates from the Ubuntu security team.
deb http://pe.archive.ubuntu.com/ubuntu/ kinetic-backports main restricted universe multiverse
# deb-src http://pe.archive.ubuntu.com/ubuntu/ kinetic-backports main restricted universe multiverse

deb http://security.ubuntu.com/ubuntu kinetic-security main restricted
# deb-src http://security.ubuntu.com/ubuntu kinetic-security main restricted
deb http://security.ubuntu.com/ubuntu kinetic-security universe
# deb-src http://security.ubuntu.com/ubuntu kinetic-security universe
deb http://security.ubuntu.com/ubuntu kinetic-security multiverse
# deb-src http://security.ubuntu.com/ubuntu kinetic-security multiverse

# This system was installed using small removable media
# (e.g. netinst, live or single CD). The matching "deb cdrom"
# entries were disabled at the end of the installation process.
# For information about how to configure apt package sources,
# see the sources.list(5) manual.

​

And the first (sources .list)

# deb cdrom:[Kubuntu 22.10 _Kinetic Kudu_ - Release amd64 (20221020)]/ kinetic main multiverse restricted universe

# See http://help.ubuntu.com/community/UpgradeNotes for how to upgrade to
# newer versions of the distribution.
deb http://pe.archive.ubuntu.com/ubuntu/ lunar main restricted
# deb-src http://pe.archive.ubuntu.com/ubuntu/ kinetic main restricted

## Major bug fix updates produced after the final release of the
## distribution.
deb http://pe.archive.ubuntu.com/ubuntu/ lunar-updates main restricted
# deb-src http://pe.archive.ubuntu.com/ubuntu/ kinetic-updates main restricted

## N.B. software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu
## team. Also, please note that software in universe WILL NOT receive any
## review or updates from the Ubuntu security team.
deb http://pe.archive.ubuntu.com/ubuntu/ lunar universe
# deb-src http://pe.archive.ubuntu.com/ubuntu/ kinetic universe
deb http://pe.archive.ubuntu.com/ubuntu/ lunar-updates universe
# deb-src http://pe.archive.ubuntu.com/ubuntu/ kinetic-updates universe

## N.B. software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu
## team, and may not be under a free licence. Please satisfy yourself as to
## your rights to use the software. Also, please note that software in
## multiverse WILL NOT receive any review or updates from the Ubuntu
## security team.
deb http://pe.archive.ubuntu.com/ubuntu/ lunar multiverse
# deb-src http://pe.archive.ubuntu.com/ubuntu/ kinetic multiverse
deb http://pe.archive.ubuntu.com/ubuntu/ lunar-updates multiverse
# deb-src http://pe.archive.ubuntu.com/ubuntu/ kinetic-updates multiverse

## N.B. software from this repository may not have been tested as
## extensively as that contained in the main release, although it includes
## newer versions of some applications which may provide useful features.
## Also, please note that software in backports WILL NOT receive any review
## or updates from the Ubuntu security team.
deb http://pe.archive.ubuntu.com/ubuntu/ lunar-backports main restricted universe multiverse
# deb-src http://pe.archive.ubuntu.com/ubuntu/ kinetic-backports main restricted universe multiverse

deb http://security.ubuntu.com/ubuntu/ lunar-security main restricted
# deb-src http://security.ubuntu.com/ubuntu/ kinetic-security main restricted
deb http://security.ubuntu.com/ubuntu/ lunar-security universe
# deb-src http://security.ubuntu.com/ubuntu/ kinetic-security universe
deb http://security.ubuntu.com/ubuntu/ lunar-security multiverse
# deb-src http://security.ubuntu.com/ubuntu/ kinetic-security multiverse

# This system was installed using small removable media
# (e.g. netinst, live or single CD). The matching "deb cdrom"
# entries were disabled at the end of the installation process.
# For information about how to configure apt package sources,
# see the sources.list(5) manual.