ubuntu-desktop-installer

[fde] boot of the live session - a terminal with "waiting for snapd" is displayed for a very long time

Bug #2032647 reported by Jean-Baptiste Lallement
12
This bug affects 2 people
Affects Status Importance Assigned to Milestone
ubuntu-desktop-installer
Invalid
High
Unassigned
livecd-rootfs (Ubuntu)
Fix Released
Undecided
Michael Hudson-Doyle

Bug Description

=Test Case=
1. Boot the iso to the live session

=Actual Result=
A terminal is displayed with the text "waiting for snapd" for several minutes (cf screenshot)

It disappears after a while and the following message is displayed in the logs

Aug 22 11:54:06 ubuntu systemd[1274]: subiquity-tui.service: Main process exited, code=exited, status=1/FAILURE
Aug 22 11:54:06 ubuntu systemd[1274]: subiquity-tui.service: Failed with result 'exit-code'.

=Expected result=
There is no such terminal

Tags: fde

Related branches

~mwhudson/livecd-rootfs/+git/livecd-rootfs:reset-preseeding-too
Steve Langasek: Approve
Diff: 82 lines (+18/-19)
4 files modified
debian/changelog (+10/-0)
live-build/functions (+1/-0)
live-build/ubuntu/hooks/020-canary-live.binary (+0/-18)
update-source-catalog (+7/-1)
Revision history for this message
Jean-Baptiste Lallement (jibel) wrote :
tags: added: fde
Revision history for this message
Jean-Baptiste Lallement (jibel) wrote :
Brian Murray (brian-murray)
Changed in ubuntu-desktop-installer:
status: New → Confirmed
Revision history for this message
Brian Murray (brian-murray) wrote :

I also saw this with the image with serial 20230822.1.

Jean-Baptiste Lallement (jibel)
Changed in ubuntu-desktop-installer:
importance: Undecided → High
Revision history for this message
Brian Murray (brian-murray) wrote :

Dimitri brought up the preseeding of snaps we did with the classic image and I wonder if waiting for snapd is a consequence of them not being preseeded.

https://bugs.launchpad.net/ubuntu/+source/livecd-rootfs/+bug/2028888/comments/8

Revision history for this message
Steve Langasek (vorlon) wrote :

With 20230824 this seems to be much worse. Instead of the terminal appearing for a brief period and then going away, the terminal never goes away.

snap changes shows

ID Status Spawn Ready Summary
1 Error today at 23:05 UTC today at 23:05 UTC Initialize system state
2 Done today at 23:05 UTC today at 23:05 UTC Change configuration of "core" snap
3 Error today at 23:05 UTC today at 23:05 UTC Initialize device

/var/lib/snapd/seed/snaps shows snaps. /var/lib/snapd/snaps does not.

It also looks to me like there's something wrong with the snap deduplication between the squashfs layers in this image.

$ sudo mount /mnt/casper/standard.live.squashfs /mnt
$ ls -l /mnt/var/lib/snapd/snaps/
total 0
c--------- 1 root root 0, 0 Aug 24 05:59 bare_5.snap
c--------- 1 root root 0, 0 Aug 24 05:59 core22_858.snap
c--------- 1 root root 0, 0 Aug 24 05:59 firefox_2993.snap
c--------- 1 root root 0, 0 Aug 24 05:59 gnome-42-2204_126.snap
c--------- 1 root root 0, 0 Aug 24 05:59 gtk-common-themes_1535.snap
c--------- 1 root root 0, 0 Aug 24 05:59 snapd_19993.snap
c--------- 1 root root 0, 0 Aug 24 05:59 snapd-desktop-integration_83.snap
c--------- 1 root root 0, 0 Aug 24 05:59 snap-store_959.snap
$

that looks wrong?

Revision history for this message
Michael Hudson-Doyle (mwhudson) wrote :

I think reset_snapd_state needs to do more (specifically call snap-preseed --reset). I'm testing a change now.

Revision history for this message
Steve Langasek (vorlon) wrote :

Fixed in livecd-rootfs 23.10.22

Changed in livecd-rootfs (Ubuntu):
assignee: nobody → Michael Hudson-Doyle (mwhudson)
status: New → Fix Committed
Changed in ubuntu-desktop-installer:
status: Confirmed → Invalid
Revision history for this message
Launchpad Janitor (janitor) wrote :

This bug was fixed in the package livecd-rootfs - 23.10.22

---------------
livecd-rootfs (23.10.22) mantic; urgency=medium

  * Undo preseeding in reset_snapd_state.
  * update-source-catalog: work better when we want a variation to point
    at the base layer.
  * Stop launching a gnome-terminal at startup of the canary live session.
    (LP: #2032647)

 -- Michael Hudson-Doyle <email address hidden> Fri, 25 Aug 2023 18:45:03 +1200

Changed in livecd-rootfs (Ubuntu):
status: Fix Committed → Fix Released
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