On Thu, May 13, 2021 at 09:21:22PM -0000, Bill McGonigle wrote: > Fast forwarding eight months, this still breaks a fully-updated xubuntu > LTS 16 to LTS 18 release upgrade
Because you have a misconfigured grub package on your system which is not writing to the correct MBR. That is impossible for us to fix from the package, as the bug is in the package configuration and there is no way to programmatically determine the correct target for grub-install. > Mounting the disks on the host (error was in a VM guest), chrooting, and > running grub-install /dev/sda fixes, so this doesn't seem like a complex > disk layout issue. I'm about to see if fully-updated LTS 18 to LTS 20 > also breaks ... yep 'grub_file_filters' is the symbol this time. Same > fix. If 'grub-install /dev/sda' fixes it for you, then you should fix your grub config to point to /dev/sda using 'sudo dpkg-reconfigure grub-pc'. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1889556 Title: grub-install failure does not fail package upgrade (and does not roll back to matching modules) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/1889556/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
