Last night I re-installed XUbuntu on my mini PC and doubled the small amount of space from 32 GB to 64 GB. The thing is 10 years old and needs a larger SSD. So, I wanted to get it setup again to do ssh with my Ubuntu Touch BraX3 and followed the UBPorts guide on generating a key. I copied it over to my UT and did all the chroot and cat commands. It seems to be reliable with that! 