[Bug 2083554] [NEW] error: snap "subiquity" is not installed

[Dan Bungert]

Public bug reported:

On arm64, using the Oracular daily build "20241001", the message `error:
snap "subiquity" is not installed` can be observed repeatedly.

...
Oct 02 16:03:19 ubuntu systemd[1]: Started serial-getty at ttyAMA0.service - Subiquity, the installer for Ubuntu Server ttyAMA0.
Oct 02 16:03:19 ubuntu systemd[1]: serial-getty at ttyAMA0.service: Main process exited, code=exited, status=1/FAILURE
Oct 02 16:03:19 ubuntu systemd[1]: serial-getty at ttyAMA0.service: Failed with result 'exit-code'.
Oct 02 16:03:19 ubuntu systemd[1]: run-credentials-serial\x2dgetty\x40ttyAMA0.service.mount: Deactivated successfully.
Oct 02 16:03:20 ubuntu systemd[1]: serial-getty at ttyAMA0.service: Scheduled restart job, restart counter is at 3155.
Oct 02 16:03:20 ubuntu systemd[1]: Started serial-getty at ttyAMA0.service - Subiquity, the installer for Ubuntu Server ttyAMA0.
Oct 02 16:03:20 ubuntu systemd[1]: serial-getty at ttyAMA0.service: Main process exited, code=exited, status=1/FAILURE
Oct 02 16:03:20 ubuntu systemd[1]: serial-getty at ttyAMA0.service: Failed with result 'exit-code'.
Oct 02 16:03:20 ubuntu systemd[1]: run-credentials-serial\x2dgetty\x40ttyAMA0.service.mount: Deactivated successfully.
Oct 02 16:03:20 ubuntu systemd[1]: serial-getty at ttyAMA0.service: Scheduled restart job, restart counter is at 3156.
...

If `serial-getty at ttyAMA0.service` is masked, the situation improves.
References to the subiquity snap should be removed from chroot overlay files for Ubuntu Desktop.

** Affects: livecd-rootfs (Ubuntu)
     Importance: Undecided
     Assignee: Dan Bungert (dbungert)
         Status: In Progress

** Merge proposal linked:
   https://code.launchpad.net/~dbungert/livecd-rootfs/+git/livecd-rootfs/+merge/474296

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

** Changed in: livecd-rootfs (Ubuntu)
     Assignee: (unassigned) => Dan Bungert (dbungert)

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https://bugs.launchpad.net/bugs/2083554

Title:
  error: snap "subiquity" is not installed

Status in livecd-rootfs package in Ubuntu:
  In Progress

Bug description:
  On arm64, using the Oracular daily build "20241001", the message
  `error: snap "subiquity" is not installed` can be observed repeatedly.

  ...
  Oct 02 16:03:19 ubuntu systemd[1]: Started serial-getty at ttyAMA0.service - Subiquity, the installer for Ubuntu Server ttyAMA0.
  Oct 02 16:03:19 ubuntu systemd[1]: serial-getty at ttyAMA0.service: Main process exited, code=exited, status=1/FAILURE
  Oct 02 16:03:19 ubuntu systemd[1]: serial-getty at ttyAMA0.service: Failed with result 'exit-code'.
  Oct 02 16:03:19 ubuntu systemd[1]: run-credentials-serial\x2dgetty\x40ttyAMA0.service.mount: Deactivated successfully.
  Oct 02 16:03:20 ubuntu systemd[1]: serial-getty at ttyAMA0.service: Scheduled restart job, restart counter is at 3155.
  Oct 02 16:03:20 ubuntu systemd[1]: Started serial-getty at ttyAMA0.service - Subiquity, the installer for Ubuntu Server ttyAMA0.
  Oct 02 16:03:20 ubuntu systemd[1]: serial-getty at ttyAMA0.service: Main process exited, code=exited, status=1/FAILURE
  Oct 02 16:03:20 ubuntu systemd[1]: serial-getty at ttyAMA0.service: Failed with result 'exit-code'.
  Oct 02 16:03:20 ubuntu systemd[1]: run-credentials-serial\x2dgetty\x40ttyAMA0.service.mount: Deactivated successfully.
  Oct 02 16:03:20 ubuntu systemd[1]: serial-getty at ttyAMA0.service: Scheduled restart job, restart counter is at 3156.
  ...

  If `serial-getty at ttyAMA0.service` is masked, the situation improves.
  References to the subiquity snap should be removed from chroot overlay files for Ubuntu Desktop.

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