I followed Qubes 4.1 installation failure - #12 by Rnd3sB3g13rng
At the end of the install process before reboot I checked via tmux session panes (CTRL-ALT-F2) that in /mnt/sysimage/var/lib/qubes/template-packages there were no files.
I executed
dnf config-manager --add-repo /tmp/installer.repo
Unable to detect release version (user ‘–releaseserver’ to specify release version)
adding repo from: file://tmp/installer.repo
and
dnf download --downloaddir=/mnt/sysimage/var/lib/qubes/template-packages qubes-template-*
Unable to detect release version (user ‘–releaseserver’ to specify release version)
3.8 MB/s | 3.0kB 00:00
anaconda
Then I did a reboot but nothing changed in the initial configuration menu.