[Bug 2063124] Re: UI shows loading screen for entire install while doing fully automated install

[Olivier Gayot]

> I believe that Subiquity-side, on shutdown of the server process, the
outstanding waiting API calls are returning null. This is outside the
API contract of /meta/status, which claims to only return
ApplicationStatus.

This is not exactly what I observed. On shutdown, it seems that the
server simply closes the connection without replying to the query:


+ curl --unix-socket .subiquity/socket 'http://a/meta/status?cur="WAITING"' -v
*   Trying .subiquity/socket:0...
* Connected to a (.subiquity/socket) port 80
> GET /meta/status?cur="WAITING" HTTP/1.1
> Host: a
> User-Agent: curl/8.5.0
> Accept: */*
> 
* Empty reply from server
* Closing connection
curl: (52) Empty reply from server

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https://bugs.launchpad.net/bugs/2063124

Title:
  UI shows loading screen for entire install while doing fully automated
  install

Status in subiquity:
  Triaged
Status in ubuntu-desktop-provision:
  New
Status in subiquity package in Ubuntu:
  Triaged

Bug description:
  While testing build 20240422 of noble-desktop daily-live with a fully-
  automated install, I observed that the loading screen never moved on
  from "Preparing Ubuntu".

  The install did complete successfully otherwise.  During the install I
  observed that /meta/status was returning a RUNNING state.

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