Thanks, that worked. Here's what I did.
Logged into my account and started FileVault.
Made sure I had the encreption key written down.
Rebooted the computer, holding Command-R.
Launched Disk Utilities and 'Repaired Drive'.
Rebooted and loged into my account.
Checked FileVault to confirm it is encrypting the disk.
Everything is working as expected now!
I run a periodontal practice and use iMacs and a Mac Pro as my server. I was also having FileVault issues. In fact, exactly as yours was. I did the restart and it spun for 24 hours, before I came back to check the progress (Friday to Sat evening).
I will do what was reccommended to you and what you said you did.
My question and this is an important piece of information, did it take 20+ hours to encrypt your server or computers? I don't have the time, until the weekend, to do it, if that is the case.
Thanks for your input.
Part of my problem, was that I was also trying to turn this on on my server. I would look at my server from a shared screen on my main computer and it would never show, after I did the restart. I hooked a monitor, keyboard and mouse to the server. Then, I rebooted using the R key and it worked. I didn't have the same problem on the other 5 computers, when I turned filevault on.