[Bug 2034253] Re: Jammy buildd image doesn't boot

[John Chittum]

pinpointed to `livecd-rootfs` release 2.765.22 on Jammy:

Drop use of --removable flag to grub-install from
    live-build/buildd/hooks/02-disk-image-uefi.binary, to match the cloud
    images (7c760864fdcb278ca37396f06f5e3f297428d63d).  This fixes
    bootloader updates in the buildd images, but also fixes compatibility
    with using devtmpfs for losetup. 

https://git.launchpad.net/livecd-
rootfs/commit/?h=ubuntu/jammy&id=5ac4df3a1a928b76e00c74647ad9d0fe30c007e7

this was revered in `ubuntu/master` earlier because it caused images to
fail to boot. for completeness, i did try a few different configurations
in the code block to see if things could work

1. full-revert of the commit. This worked
2. Deleted just the `--removable` line. This caused it to fail to boot
3. kept `--removable` but deleted the if statement with `boot/efi`. this failed to boot

I'm building livecd-rootfs package now, and will try to run a launchpad
build with it as well. The big issue here is that vorlon noticed an
issue with livecd-rootfs builders, and issues related to buildd. I have
successful builds before the merge in, within a single day, so it
appears the launchpad-builder issue isn't affecting being able to build
`buildd` on 22.04 as of 20230827.

** Also affects: livecd-rootfs (Ubuntu)
   Importance: Undecided
       Status: New

** Changed in: cloud-images
       Status: New => Confirmed

** Changed in: livecd-rootfs (Ubuntu)
       Status: New => Confirmed

** Changed in: cloud-images
   Importance: Undecided => High

** Changed in: cloud-images
     Assignee: (unassigned) => John Chittum (jchittum)

** Changed in: livecd-rootfs (Ubuntu)
     Assignee: (unassigned) => John Chittum (jchittum)

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https://bugs.launchpad.net/bugs/2034253

Title:
  Jammy buildd image doesn't boot

Status in cloud-images:
  Confirmed
Status in livecd-rootfs package in Ubuntu:
  Confirmed

Bug description:
  Recent Jammy buildd images fail to boot (since at least September 1st:
  https://github.com/canonical/craft-
  application/actions/runs/6016993725/job/16424264050?pr=64).

  Trying to run an image from https://cloud-
  images.ubuntu.com/buildd/daily/jammy/current in QEMU, only gets me a
  GRUB prompt. Multipass and Snapcraft consequently fail to work with
  these images.

  I haven't checked other image series.

  This is similar to https://bugs.launchpad.net/cloud-
  images/+bug/2027686, but a new issue.

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