I did not have a special /boot directory in my partition table so boot was part of the root (/) mount point. The root partition is on sdb1 if that helps at all. When investigating this I did have the /boot/grub directory, but was unabled to find the i386 directory in that tree.
To work around this error was able to set the bios to "leagacy mode" (non-efi) and purge both the grub-efi-amd64-signed and shim-signed packages. Reinstalling grub-efi-amd64 package only. This has allowed me to get a clean apt-get run. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1653982 Title: grub-install post installation script fails To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/grub-installer/+bug/1653982/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
