I think https://bugs.launchpad.net/ubuntu/+source/os-prober/+bug/1770173 might be related as well. The installation hangs at the exact same point: 66% while running the "dmsetup create -r osprober-linux-something" command.
I think https:/ /bugs.launchpad .net/ubuntu/ +source/ os-prober/ +bug/1770173 might be related as well. linux-something " command.
The installation hangs at the exact same point: 66% while running the "dmsetup create -r osprober-