Autoinstalling ubuntu-server 20.04.3 from the live-iso

@atix will probably know more but I think the RPM package only contains a certificate that should already be available as a plain file on /pub or at least it used to be. Maybe we should consider publishing it again if its no longer the case so alien is not necessary.

Yeah Debian Errata is @atix’s domain.

Remind me why you cannot use the build-in Foreman’s userdata endpoint?

And why you did not use the default finish preseed template? What was wrong with it?

Edit: Initially I did not see the wget command now I see it.