[Bug 2114923] Re: Upon booting iso, no snaps are installed and desktop installer service crashes

[Tim Andersson]

Hi Ernest. Please can you direct me to a bug/epic that tracks the work
to bring the seeding time back down, since it increased significantly
this cycle?

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https://bugs.launchpad.net/bugs/2114923

Title:
  Upon booting iso, no snaps are installed and desktop installer service
  crashes

Status in snapd:
  Fix Released
Status in ubuntu-desktop-provision:
  Invalid
Status in livecd-rootfs package in Ubuntu:
  Fix Released
Status in snapd package in Ubuntu:
  Fix Released
Status in snapd source package in Jammy:
  Fix Released
Status in snapd source package in Noble:
  Fix Released
Status in snapd source package in Plucky:
  Fix Released

Bug description:
  [SRU] 2.71:
  https://bugs.launchpad.net/ubuntu/+source/snapd/+bug/2118396

  This issue was originally reported to be a snapd issue, however there
  is no definitive fix on the snapd side to guarantee that another user
  service that depends on seeding to be complete, does not start too
  early. For this reason the recommendation was made to change the boot
  sequence for the other service, and this is the definitive fix that
  was made to livecd-rootfs (Ubuntu).

  On the snapd side, some work was done to improve seeding speed, but
  this is not in any way a definitive fix, it just decrease the
  likelihood of encountering the problem on a slow system.
  https://github.com/canonical/snapd/pull/15682

  [ Impact ]

  This issue is only relevant to Questing installer ISO that performs a
  hybrid install.

  When another service starts up and depends on snapd seeding to be
  done, without enforcing a boot order that ensures seeding is complete
  (e.g. `After=snapd.seeded.service`), snaps will be missing and this
  will lead to failures. This is the case for the installer ubuntu-
  desktop-installer.service.

  [ Test Plan ]

  Confirm that the definitive fix made for livecd-rootfs (Ubuntu) solves
  the problem.

  ---original---

  Upon booting an ISO (I believe this may only happen with slow internet
  connections) there is (sometimes) NO snaps installed. Snapd is
  functional but snap info list lists no snaps. The desktop installer
  services crashes, and thus the installer never boots up. After *quite*
  some time (approx 5m) on this live iso, snaps were installed, and the
  installer icon then functional. I've attached the journalctl to help
  debugging.

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