[Bug 1997779] Re: grub2-signed postinsts need to source debconf

[dann frazier]

Both amd64 and arm64 verifications failed:

= amd64 =
ubuntu at ubuntu:~$ dpkg -l | grep grub-efi
ii  grub-efi-amd64-bin              2.04-1ubuntu47.5                  amd64        GRand Unified Bootloader, version 2 (EFI-AMD64 modules)
ii  grub-efi-amd64-signed           1.173.4+2.04-1ubuntu47.5          amd64        GRand Unified Bootloader, version 2 (EFI-AMD64 version, signed)
ubuntu at ubuntu:~$ sudo dpkg-reconfigure grub-efi-amd64-signed
Unknown device "/dev/disk/by-id/*": No such file or directory
Installing grub to /boot/efi.
Installing for x86_64-efi platform.
Installation finished. No error reported.
ubuntu at ubuntu:~$ sudo dpkg-reconfigure grub-efi-amd64-signed -plow
Unknown device "/dev/disk/by-id/*": No such file or directory
Installing grub to /boot/efi.
Installing for x86_64-efi platform.
Installation finished. No error reported.
ubuntu at ubuntu:~$ 

= arm64 =
ubuntu at ubuntu:~$ sudo dpkg-reconfigure grub-efi-arm64-signed -plow
Unknown device "/dev/disk/by-id/*": No such file or directory
Installing grub to /boot/efi.
Installing for arm64-efi platform.
Installation finished. No error reported.
ubuntu at ubuntu:~$ dpkg -l | grep grub-efi-arm64-signed
ii  grub-efi-arm64-signed           1.173.4+2.04-1ubuntu47.5          arm64        GRand Uni
fied Bootloader, version 2 (EFI-ARM64 version, signed)


** Tags removed: verification-needed verification-needed-focal
** Tags added: verification-failed verification-failed-focal

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https://bugs.launchpad.net/bugs/1997779

Title:
  grub2-signed postinsts need to source debconf

Status in grub2-signed package in Ubuntu:
  Fix Released
Status in grub2-signed source package in Focal:
  Fix Committed
Status in grub2-signed source package in Jammy:
  Triaged
Status in grub2-signed source package in Kinetic:
  Triaged
Status in grub2-signed source package in Lunar:
  Fix Released

Bug description:
  [Impact]
  dpkg-reconfigure grub-efi-*-signed do nothing, as debconf is weird and sourcing the script inside grub-multi-install is not enough.

  This means the questions about which ESP(s) to use might not get
  asked.

  [Test plan]
  Run dpkg-reconfigure grub-efi-amd64-signed, ensure it shows debconf prompts.

  same for grub-efi-arm64-signed

  [Where problems could occur]
  I'm not sure where problems could occur from adding a single line to the top of postinst that sources debconf when all other packages have it too, hmm.

  But of course debconf is always a bit weird. Maybe questions get asked
  twice, I don't know.

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