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I upgraded my system from KUbuntu 21.10 to KUbuntu 22.04 via Gnome
Software Updater today.
I did not have enough free space on my mounted drive that holds the
installed kernels, so the kernel installation exited with an error but
the overall installation completed successfully.
A final reboot left me with my laptop not booting anymore; I had to
select another installed kernel via grub before I could boot
successfully again.
After I had removed some unused kernels I reinstalled the latest which
worked this time.
There are 3 problems here (to my mind) and what I would have expected:
1) The error message did not say much to me at all, although this is
quite a problematic situation. I did not know what to do from the
message, despite being a software developer and not shy to read console
output (it said I might find myself with a broken system, but yes, what
now? How to "unbreak" it, if at all...).
2) If I do not have enough space to install a kernel, the update process
should not update my grub as if it had worked fine and, consequently,
try to load the broken kernel at all. It should either remove the
unfinished installation automatically or leave it like this but restore
to the last "working" one.
3) I am not shy on researching issues on the internet and "knew" that I
could boot using different kernels. Compared to more naive users (who
really only want to use the system), this is a dead end, although it
does not have to be that way, because the "working" kernels are there
and, being bold, the system should manage this.
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Tags: bot-comment dist-upgrade
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Unfinished Kernel Installation while upgrading leaves broken kernel
https://bugs.launchpad.net/bugs/1971622
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