[Bug 1986674] Re: Installer Ubuntu-220.4.1-server after Server Snap menue jumps back to Language selection instead of Finish&Reboot

[Olivier Gayot]

I think this bug is caused by this patch:
https://github.com/canonical/subiquity/commit/ee528fe6a739eedc598be2af9f7e7cc8a731acdf,
and more specifically this change:

         if data.status == SnapCheckState.FAILED:
-            # If loading snaps failed or the network is disabled, skip the
-            # screen.
-            raise Skip()
+            # If loading snaps failed or network is disabled, skip the screen.
+            log.debug('snaplist GET failed, mark done')
+            self.done([])
         return SnapListView(self, data)

The removal of the raise statement makes the function always return a
view, even though we move to the next screen through self.done([])

This triggers a race condition that will sometimes show the view
returned, with invalid data.

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https://bugs.launchpad.net/bugs/1986674

Title:
  Installer Ubuntu-220.4.1-server after Server Snap menue jumps back to
  Language selection instead of Finish&Reboot

Status in subiquity:
  New
Status in subiquity package in Ubuntu:
  In Progress

Bug description:
  ubuntu-22.04.1-live-server-amd64.iso
  (sha256sum 10f19c5b2b8d6db711582e0e27f5116296c34fe4b313ba45f9b201a5007056cb)

  After in the Installer "Featured Server Snaps" menu (see attached
  screenshot, there is no snap shown)

  after clicking on "Done", the Installer jumps back to inital Language
  selection menu, instead of finishing the install and reboot.

  This is stable reproducable by deleting the VM and doing a plain new
  install from the ISO.

  With the earlier version ubuntu-22.04-live-server-amd64.iso
  (so not the .1 point release) our documented and unchanged Ubuntu 22 install algorithm worked flawlessly, it ended with "Finish & Reboot".

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