RPi: How long to restore from backup?

I’m migrating my HA from Ubuntu to a RPi 5. The backup tar file is about 53 MBytes and so far it has taken just under 3 hours, with no sign of any progress. I’m doing the restore via the browser. I have a physical display and keyboard connected to the RPi and it’s connected to my router via ethernet. Has it stalled or is it just taking a very long time and how can I tell?

53Mb should install in a few minutes at most.
Are you sure it is not 53Gb?

52,970 KB

It was still running 10 hours later so I killed it.

I’m struggling to find any instructions on how to migrate from other machines. Plenty of info on how to set up a new installation but it’s pretty simple anyway.

Should I create a new account first and then import from backup? Honestly can’t find any info anywhere.

Ok seems it doesn’t work in Firefox. Using Chrome it was fine. Just wish this was documented somewhere.

I use Firefox and have not had issues.
Maybe a flux then.