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

[Dan Bungert]

4 of the 5 files deleted have references to the subiquity snap, none of those could ever have worked.
The autologin.conf is also the server one, so at absolute best it's the wrong content, but it doesn't explicitly reference the subiquity snap in the same way.

I think I want to continue with that MP
(https://code.launchpad.net/~dbungert/livecd-rootfs/+git/livecd-
rootfs/+merge/484604) as-is.

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

Title:
  error: snap "subiquity" is not installed

Status in livecd-rootfs package in Ubuntu:
  Fix Released
Status in livecd-rootfs source package in Noble:
  New

Bug description:
  [ Impact ]

   * On arm64 Desktop install ISOs, the message `error: snap "subiquity"
  is not installed` can be observed repeatedly.

  [ Test Plan ]

   * Testing something like this prior to merge to the archive is difficult.  We can demonstrate that builds in a PPA succeed, but that fails to provide full confirmation that the resulting ISO is healthy.
   * ???

  [ Where problems could occur ]

   * As usual, the risk is never zero
   * We are deleting files not in use by the desktop install ISO.  If this was done incorrectly, we could harm the install.

  Original bug report follows.

  ---

  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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