[Bug 2039268] Re: When upgrading to Mantic, it fails to install snap firmware-updater

[Samuele Pedroni]

I built a deb locally with https://github.com/snapcore/snapd/pull/13335
which contains a cherry-pick of the fix on top of 2.60.4, and I could
*not* reproduce the issue!

even with a snapd snap installed with a generator with the bug (which
afaik should not matter)

$ lxc launch ubuntu:lunar lp-2039268
$ lxc file push snapd_2.60.4fix1_amd64.deb lp-2039268/root/
$ lxc exec lp-2039268 bash
root at lp-2039268:~# snap version
snap    2.60.3
snapd   2.60.3
series  16
ubuntu  23.04
kernel  6.2.0-35-generic
root at lp-2039268:~# dpkg -i snapd_2.60.4fix1_amd64.deb
...
root at lp-2039268:~# ls -l /run/systemd/generator/snap.mount
ls: cannot access '/run/systemd/generator/snap.mount': No such file or directory
root at lp-2039268:~# sed -i -e's/lunar/mantic/' /etc/apt/sources.list && apt update && apt install systemd

...
root at lp-2039268:~# ls -l /run/systemd/generator/snap.mount
ls: cannot access '/run/systemd/generator/snap.mount': No such file or directory

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https://bugs.launchpad.net/bugs/2039268

Title:
  When upgrading to Mantic, it fails to install snap firmware-updater

Status in snapd package in Ubuntu:
  Fix Committed
Status in ubuntu-release-upgrader package in Ubuntu:
  Confirmed

Bug description:
  While upgrading to Mantic the following message is reported:

  installing snap firmware-updater
  error: cannot perform the following tasks:
  - Automatically connect eligible plugs and slots of snap "firmware-updater" (internal error: auto-connect of &{"firmware-updater:desktop-legacy" "snapd:desktop-legacy"} failed: snap "snapd" has no slot named "desktop-legacy")

  Steps to reproduce the culprit snap.mount:

  $ lxc launch ubuntu:lunar lp-2039268
  Creating lp-2039268
  Starting lp-2039268
  $ lxc exec lp-2039268 bash
  # sed -i -e's/lunar/mantic/' /etc/apt/sources.list && apt update && apt install -y systemd
  # ls -l /run/systemd/generator/snap.mount
  -rw-r--r-- 1 root root 274 Oct 18 05:49 /run/systemd/generator/snap.mount

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