[Bug 2066118] Re: 24.04 Subiquity Cannot Read Auto-install Cloud-init Files

Juan 2066118 at bugs.launchpad.net
Thu Aug 21 09:22:08 UTC 2025


Hi all,

Do we know if this bug is still an issue?

I have experienced it on 24.04 LTS (ubuntu-24.04-live-server-amd64.iso),
trying to install via a PXE system.

I have tried multiple ways and manipulations of the autoinstaller file, even did a manual installation, then copied the autoinstall-user-data file and tried to let PXE use that to install, but all resulted in this same error:
⸻
syntax error: unable to determine template owner
⸻

There are definitely no syntax errors in the file.

Looking forward to a response!

Cheers,
J

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https://bugs.launchpad.net/bugs/2066118

Title:
  24.04 Subiquity Cannot Read Auto-install Cloud-init Files

Status in subiquity package in Ubuntu:
  Confirmed

Bug description:
  Since changing my PXE setup to serve a 24.04 ISO, I haven't been able to get the auto-installer to read any preseed files. I load the ISO and YAML from a local HTTP server, as always.
  Curiously, the second resolution for my server's name (to download the preseed) always fails, so I had to change the line in GRUB to use the IP. Is it just me?

  Possible Subiquity Bug:
  I've tried a few different files for cloud-init, but it fails to read them all the same way. I always receive the following error:

  Error parsing preconfiguration file: Syntax error: unable to determine
  template owner

  I tried the same file that I've always used as well as one copied from
  a new server running 24.04 so I'm not sure what to do and searching
  for that error online didn't yield anything helpful.

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