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

[Antoine Lassagne]

I confirm that the desktop ARM64 dailies downloaded from
https://cdimage.ubuntu.com/noble/daily-live/current/ have the issue.

I ran it on a VM with 
```
sudo qemu-system-aarch64 -machine virt -cpu cortex-a57 -smp 6 -m 4096 -bios /usr/share/AAVMF/AAVMF_CODE.ms.fd -netdev user,id=net0,hostfwd=tcp::8022-:22 -device virtio-net-pci,netdev=net0 -drive if=virtio,file="noble-desktop-arm64.iso",format=raw -device virtio-gpu-pci -device virtio-keyboard                         -device virtio-mouse -serial mon:stdio -nographic
```

And, after the boot, my console is spammed with 
```
error: snap "subiquity" is not installed
error: snap "subiquity" is not installed
error: snap "subiquity" is not installed
error: snap "subiquity" is not installed
error: snap "subiquity" is not installed
error: snap "subiquity" is not installed
error: snap "subiquity" is not installed
error: snap "subiquity" is not installed
error: snap "subiquity" is not installed
error: snap "subiquity" is not installed
error: snap "subiquity" is not installed
error: snap "subiquity" is not installed
error: snap "subiquity" is not installed
error: snap "subiquity" is not installed

```

-- 
You received this bug notification because you are a member of Ubuntu
Foundations Bugs, which is subscribed to livecd-rootfs in Ubuntu.
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.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/livecd-rootfs/+bug/2083554/+subscriptions