Bug#993274: machine unbootable after upgrade
Package: upgrade-reports
Severity: grave
Hi,
I have recently upgraded a machine from Buster to Bullseye. The machine
runs on an mdadm RAID1. After the upgrade, it had the symptom outlined
in #931896.
I followed the upgrade process, as described in
https://www.debian.org/releases/bullseye/amd64/release-notes/ch-upgrading.en.html
After completing this procedure, I ran
# apt install -f
# dpkg --configure -a
which both came up empty, suggesting that there was really no problem
left.
Since the machine didn't boot after upgrade, I'd say that warrants
'grave'.
As a fix, once I got access to the machine, running
# lsblk
to figure out the boot disks, then manually installing grub there like
this:
# grub-install /dev/sda
# grub-install /dev/otherdisk
solved the problem.
I am not sure why the upgrade process didn't handle this case, but think
the severity of the problem warrants a warning in the release notes.
Cheers,
Toni
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