Well, that's a lie - I did have it running for a short time - but only because I unplugged during a long (2+hr) mono install. After which, it unexpectedly sprung into life.
When I tried to install another package, it reminded me that something wasn't right with the Pi OS, and that I needed to run some repairs.
And the repairs ended up reinstalling Mono - and got stuck at the same place again.
Again, I unplugged - then all was running fine until I tried to install another package.
So this time, I have left it going to see if it ever finishes.
Currently it has been running for over 24hrs, and it's the same part of the install that it is stuck at - the process of:
Code: Select all
Mono precompiling /usr/lib/mono/4.5/Microsoft.CodeAnalysis.CSharp.dll