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bbfa235
(Get the code!)
Unfortunately, this bug seems not fixed for me.
I am using a remote server at 1&1 Hosting with a RAID 1 configuration and logical volumes (LVM). I am starting with a fresh image of Ubuntu 18.04 LTS. With do-release-upgrade I can upgrade to Ubuntu 20.04 LTS, but I am ending with this error:
Errors were encountered while processing:
grub-pc
Exception during pm.DoInstall(): E:Sub-process /usr/bin/dpkg returned an error code (1)
After that my system is unusable. It cannot be updated, no packages can be installed. I can reboot, but when I try to fix the error with re-installing grub-pc it becomes unbootable.