[Bug 2032586] Re: [3.0][bug] Missing a 'grub-install' settings for classic image

[Laider Lai]

@upils

Thanks. The v3.10.0 starts to do the grub-install, but it got the error
with the "--target" parameter missing. Could you reproduce the same
scenario? The YAML configuration is the same as #14.

===log===
...
Installing for x86_64-efi platform.
Installation finished. No error reported.
grub-install: error: /usr/lib/grub/i386-pc/modinfo.sh doesn't exist. Please specify --target or --directory.
No diversion 'local diversion of /etc/grub.d/30_os-prober to /etc/grub.d/30_os-prober.dpkg-divert', none removed.
duration: 1.073596307s
Error: Error running command "/usr/sbin/chroot work/scratch/loopback grub-install /dev/loop15 --target=i386-pc". Error: exit status 1. Output:
grub-install: error: /usr/lib/grub/i386-pc/modinfo.sh doesn't exist. Please specify --target or --directory.

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https://bugs.launchpad.net/bugs/2032586

Title:
  [3.0][bug] Missing a 'grub-install' settings for classic image

Status in Ubuntu Image:
  Fix Committed

Bug description:
  Hi,

  We found if the classic image, which is generated by ubuntu-image 3.0,
  uses grub-efi as its boot assets, the classic environment can't update
  its shim.efi and grub.efi files correctly by "sudo apt upgrade".

  Because its grub Debian package manifest settings are not correct.
  Please reference the description from livecd-rootfs: https://git.launchpad.net/ubuntu/+source/livecd-rootfs/tree/live-build/buildd/hooks/02-disk-image-uefi.binary?h=applied/ubuntu/jammy-devel#n101

  Could ubuntu-image 3.0 support to setup correct grub Debian package
  manifest?

  [Reproduce steps]
  1. Build an amd64 classic image that uses grub-efi boot assets
  2. Bootup image and make sure there is a newer shim-signed and grub-efi-amd64-signed
  3. "sudo apt update" and "sudo apt upgrade" to update newer shim-signed and grub-efi-amd64-signed
  4. Check the checksum result for /boot/efi/EFI/ubuntu/shimx64.efi and grubx64.efi
  5. The checksum result still the old version, not newer version

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