How to prepare a restart of preupgrade?

[Peter Diercks]

Hello List,

Running preupgrade-cli on my remote F11 server I received a message at
the end of the first stage stating that /boot lacked 54 kB of storage
space. I removed /efi and splash.xpm.gz. Now the process should work.

But how to proceed from this point? Can I simply do a reboot? Or do I
have to restart preupgrade, and if so, would I have to remove any files
and directories already produced by the prior preupgrade step?

Greetings,

Peter