Hi

with the kernel 6.2.0-27 i have a kernel panic when i start the 
computer, because there upgrade doesn't work.

I could start the same computer with 6.2.0-26 in grub.

Yesterday ubuntu asked to upgraded to 6.2.0-31. I replied yes. It's work.

( uname -a :

Linux jeanpaul-Precision-WorkStation-T5500 6.2.0-31-generic #31-Ubuntu 
SMP PREEMPT_DYNAMIC Mon Aug 14 13:42:26 UTC 2023 x86_64 x86_64 x86_64 
GNU/Linux
)

Now i can start the computer without a kernel pannic with the computer 
start.

I tryed before the update yesterday the following command. It did not work.

Sincerly yours

Le 28/08/2023 à 11:33, Juerg Haefliger a écrit :
> Tested DKMS from proposed
>
> Testbed preparation:
>
> 1) Install Lunar
>
> 2) Install a good and a bad DKMS (one that builds correctly and one that doesn't):
>     2.1) Install evdi-dkms (good DKMS)
>     2.2) Install rtl8821ce-dkms 5.5.2.1-0ubuntu10 from Jammy (bad DKMS)
>
> 3) Verify DKMS build status:
>     $ dkms status
>     evdi/1.12.0+dfsg, 6.2.0-27-generic, x86_64: installed
>     rtl8821ce/5.5.2.1: added
>
> During the above, the build of rtl8821ce failed.
>
> Verify current brokenness:
>
> 1) Unbuild evdi dkms:
>     $ sudo dkms unbuild evdi/1.12.0+dfsg --all
>     $ dmks status
>     evdi/1.12.0+dfsg: added
>     rtl8821ce/5.5.2.1: added
>
> 2) Reinstall the kernel headers, this triggers a build of all DKMS modules. One of the modules fails to build and the kernel header installation fails as a result of that.
>    $ sudo apt install --reinstall linux-headers-6.2.0-27-generic
> ...
> Setting up linux-headers-6.2.0-27-generic (6.2.0-27.28) ...
> /etc/kernel/header_postinst.d/dkms:
>   * dkms: running auto installation service for kernel 6.2.0-27-generic
> ...
> Error! Bad return status for module build on kernel: 6.2.0-27-generic (x86_64)
> Consult /var/lib/dkms/rtl8821ce/5.5.2.1/build/make.log for more information.
> ...
> Errors were encountered while processing:
>   linux-headers-6.2.0-27-generic
>   rtl8821ce-dkms
> needrestart is being skipped since dpkg has failed
> E: Sub-process /usr/bin/dpkg returned an error code (1)
>
> OK, confirmed that header installation with a broken DKMS is place
> fails.
>
> Clean up the testbed and install dkms from proposed:
>
> 1) Remove rtl8821ce-dkms
> 2) Reinstall kernel headers
> 3) Install dkms 3.0.10-7ubuntu2.1 from proposed
> 4) Reinstall rtl8821ce-dkms 5.5.2.1-0ubuntu10 from Jammy. Build still fails.
> 5) Unbuild evdi dkms:
>     $ sudo dkms unbuild evdi/1.12.0+dfsg --all
>     $ dmks status
>     evdi/1.12.0+dfsg: added
>     rtl8821ce/5.5.2.1: added
>
>
> Verify correct behavior of dkms from proposed:
>
> 1) Reinstall kernel headers (mimick do-release-upgrade):
>     $ RELEASE_UPGRADE_IN_PROGRESS=1 apt install --reinstall linux-headers-6.2.0-27-generic
> ...
> etting up linux-headers-6.2.0-27-generic (6.2.0-27.28) ...
> /etc/kernel/header_postinst.d/dkms:
>   * dkms: running auto installation service for kernel 6.2.0-27-generic
> ...
> Error! Bad return status for module build on kernel: 6.2.0-27-generic (x86_64)
> Consult /var/lib/dkms/rtl8821ce/5.5.2.1/build/make.log for more information.
> dkms autoinstall on 6.2.0-27-generic/x86_64 succeeded for evdi
> dkms autoinstall on 6.2.0-27-generic/x86_64 failed for rtl8821ce(10)
> Error! One or more modules failed to install during autoinstall.
> Refer to previous errors for more information.
>   * dkms: ignore autoinstall errors for dkms modules
>   * dkms: autoinstall for kernel 6.2.0-27-generic
>     ...done.
> ...
>     $ echo $?
>     0
>
> See above output. Build of rtl8821ce/5.5.2.1 failed but error is ignored
> and kernel headers are installed successfully.
>
>
> ** Tags removed: verification-needed-lunar
> ** Tags added: verification-done-lunar
>