fully automated autoinstall shows a blank console

[dbungert]

What happened?

Give the installer some autoinstall.yaml that does not use interactive-sections. Instead of the normal journal-based scroll in the console, we get a blank console.

What was expected?

journal-based scroll similar to what is seen when doing non-autoinstall

Steps to reproduce

1. Apply autoinstall through a supported method. https://ubuntu.com/server/docs/install/autoinstall-quickstart has two sample methods for doing so. Here is a specific sample autoinstall in cloud-config format that reproduces the problem:

   #cloud-config
   autoinstall:
   version: 1
   identity:
   realname: ''
   hostname: ubuntu
   username: ubuntu
   password: '$6$wdAcoXrU039hKYPd$508Qvbe7ObUnxoj15DRCkzC3qO7edjH0VV7BPNRDYK4QR8ofJaEEF2heacn0QgD.f8pO8SNp83XNdWG6tocBM1'

2. Allow install to proceed.
3. Press console button in bottom-right

Additional context

[dbungert]

Regression from lunar

[p-gentili]

Moreover, the progress bar doesn't get updated with autoinstall.