Non-interactive anaconda ISO requires additional bootc switch --migrate-in-place

[p5]

When creating a BIB image without specifying a kickstart script in the configuration, the following command is added as a %post step:

bootc switch --mutate-in-place --transport %s %s

(source)

However, when the operator specifies their own kickstart (e.g. adds custom steps or an empty string to force an interactive installer), this step is not added through osbuild. Therefore, the operator must be aware of this command (which is not documented anywhere!) and explicitly add it to the config file.

This function which adds that bootc switch command seems to be exiting early when the operator provides any sort of content in the kickstart (including a blank string - ""), so the command wouldn't be present in the resulting ISO unless this is explicitly defined in the config.toml input.

[supakeen]

I feel that since we have ostreecontainer in our kickstart unconditionally (even when a user provided kickstart is there), that we should probably do the same with bootc switch?

Alternatively we can document that users need to add this always but that seems a bit less friendly.

cc @mvo5 / @achilleas-k.

[cgwalters]

Yes, we should add it automatically.

[supakeen]

Yes, we should add it automatically.

Before I make the change in images, is it intended to be permanent or is the plan that kickstarts' ostreecontainer be changed to take care of this eventually?

[ondrejbudai]

The proper fix is anaconda getting a proper support for bootc, see: rhinstaller/anaconda#5197