Ubuntu
grub2 package

  1. Bug #1892526
  2. Comment #0

Comment 0 for bug 1892526

Revision history for this message
Brian Turek (brian-turek) wrote :

I recently had a RAID-5 disk failure and was greeted by an inoperable grub due to not having installed grub on all the disks. I temporarily fixed this problem by manually running "grub-install" on the other disks in the array and got my system working.

Previously it was advised to run "dpkg-reconfigure grub-pc" and select the relevant disks to ensure that future grub updates installed on all the disks in the array. This command no longer prompts for the install disks due to the changed introduced by https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/1889556. In /var/lib/dpkg/info/grub-pc.postinst, the following elif block immediately precedes the elif block that prompts for grub-pc/install_devices and short circuits on all recent grub versions:

  elif dpkg --compare-versions "$2" ge 2.04-1ubuntu26; then
    # Avoid the possibility of breaking grub on SRU update
    # due to ABI change
    :

I can confirm this issue is present on 20.04.1 and it appears to be present on 18.04.4 per https://askubuntu.com/questions/1212569/dpkg-reconfigure-grub-pc-no-option-to-select-boot-device