Score:0

Ubuntu

Ubuntu 22.10 is unbootable after kernel update

Cutter

3/8/24, 12:26 PM

Ubuntu 22.10 doesn't boot anymore. Upon boot I get the following messages:

[   1.829574] usb 1-3.4: device descriptor read/64, error -32
/dev/sda6: clean, 271463/9601024 files, 15565532/38384128 blocks
[   6.441227] nvidia-gpu 0000:01:00.3: i2c timeout error e0000000
[   6.442378] ucsi_ccg 0-0008: i2c_transfer failed -110
[   6.443371] ucsi_ccg 0-0008: ucsi_ccg_init failed - -110
[ 256.957586] snd_hda_intel 0000:00:1b.0: Too many BDL entries: buffer=4194300, period=135300
[ 319.513256] snd_hda_intel 0000:00:1b.0: Too many BDL entries: buffer=4194300, period=135300

The screen occasionally blinks with more messages but it's too fast to read, and comes back to these messages with an additional snd_hda_intel "Too many BDL entries" error.

The kernel must have been updated from 5.19.0-31 to 5.19.0-35 because I have these two entries in GRUB's advanced options.

The system boots normally with the older kernel version.

I had the same problem previously after a kernel update and I had to reinstall the OS. Let's hope this won't be necessary this time.

Sorry, the question is very vague. please tell me if there is any way I can gather more info.

935

2 + 10

boot

kernel

22.10

Hi-Angel

3/8/24, 1:21 PM

So, from what I understand, your kernel got updated to `5.19.0-35` and it won't boot unless in recovery mode. But there's also an entry for an older `5.19.0-31` kernel — does this one boot normally?

Cutter

3/8/24, 1:24 PM

Yes 5.19.0-31 boots without a problem.

Hi-Angel

3/8/24, 1:32 PM

I see. So, in this case your further actions depend on what you want. You can remove the newer package *(I think that'd be `sudo apt purge linux-image-5.19.0-35-generic`, check that it doesn't remove any other kernel version)* and avoid updating the kernel for now. You might also want to create a bugreport about this situation on launchpad, to make sure Ubuntu kernel maintainers are aware of this problem, so they'd find a fix. Since the `35` number signifies custom patches, most likely some of the patches maintainers applied to the kernel screwed something up.

karel

3/9/24, 1:47 PM

Does this answer your question? [How to remove latest kernel without removing linux itself](https://askubuntu.com/questions/419116/how-to-remove-latest-kernel-without-removing-linux-itself)

Cutter

3/9/24, 8:25 PM

@Hi-Angel when I enter the command you gave, apt warns me that it is about to remove the following packages: `linux-generic-hwe-22.04*` `linux-image-5.19.0-35-generic*` `linux-image-generic-hwe-22.04*`, should I do this ?

Cutter

3/9/24, 8:26 PM

@karel how can I pin the previous kernel in grub ? Especially since it is hidden in the advanced options.

karel

3/10/24, 7:02 AM

@Cutter [Set "older" kernel as default grub entry](https://askubuntu.com/q/216398/)

Hi-Angel

3/10/24, 7:21 AM

@Cutter hm, no, you don't want to remove anything except the specific kernel version. Try replacing `purge` with `remove` in my command. Although, I find it odd that it suggests removing the meta-packages, given there is another kernel version that belongs to them… Just for the safe case, before removing, please also make sure there is output for this command `dpkg -l | grep linux-image-5.19.0-31`

Cutter

3/12/24, 11:48 AM

I would like grub to remove the new kernel entry and have the "Ubuntu" entry on the main menu point to the previous kernel. How can I do that ? @Hi-Angel is there a boot log that I could provide in my bug report ?

Hi-Angel

3/12/24, 12:57 PM

@Cutter assuming that `/` gets mounted correctly, and journal gets flushed before you turn off the computer, you will find the kernel logs from unsuccessful boots at `/var/log/` dir, files with prefix `dmesg` or `kern`. You can make sure you found the correct log by looking up the error messages about `BDL entries` that you know should show up. And regarding you first question about grub entries — simply removing the kernel version that is known to be broken will make default Grub entry point to the older kernel.

Score:0

Ubuntu

Allison Luri

3/15/24, 1:47 AM

I still have this problem.

I just had to get back to 5.19.0-32.

35 is not working.

Seems to be something also with nvidia-driver-525.

+ 0

Score:0

Ubuntu

José Othon

3/8/24, 3:20 PM

Just hit the same issue here (with 5.19.0.35), purging the new kernel did the trick, before restarting just make sure the old version is still installed.

Thanks for the help.

+ 1

Hi-Angel

3/9/24, 10:24 AM

Please report a bug to the ubuntu package to make sure maintainers are aware and will fix it.

Elon Musk

I sit in a Tesla and translated this thread with Ai:

EN: Ubuntu 22.10 is unbootable after kernel update

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