Beware if you have installed either MacFuse directly or through an application that requires it, such as Parallels Desktop, if you then try to encrypt a drive with FileVault 2 in Mavericks, it will either not work or as in my case hang itself up at 99% completion with no further errors.
Your disk can no longer be accessed and appears corrupted (it is not!)
Neither DiskUtility in user or recovery mode will fix it.
Thru a trial and error I determined the culprit to be MacFuse 2.x which I did not install knowingly. Parallels desktop probably did.
Rebooting and re-entering the passphrase for the encrypted disk will work but it will not mount!
Using Terminal command diskutil cs list will show the Physical and LVs with a status of Converting "forward" and completion at 99% with nothing working.
System.log msgs do not reveal the cause easily. At one point I was getting byte offset kernel errors associated with the LV, but other times trying various disk repairs, it is silent and will just not mount.
I uninstalled several kexts that have fs related functions and after getting it to mount properly and complete encryption, I then tested each kext and found out that by reinstalling MacFuse, I was able to reproduce the problem.
I'm aware that MacFuse is obsolete and succeeded by OSXFuse, but that doesn't explain why running Parallels Deskop 9 on Mavericks would install the obsolete version.
Hope this helps somebody not wasting a full night on trying to recover their partially encrypted unmountable drive.
Your disk can no longer be accessed and appears corrupted (it is not!)
Neither DiskUtility in user or recovery mode will fix it.
Thru a trial and error I determined the culprit to be MacFuse 2.x which I did not install knowingly. Parallels desktop probably did.
Rebooting and re-entering the passphrase for the encrypted disk will work but it will not mount!
Using Terminal command diskutil cs list will show the Physical and LVs with a status of Converting "forward" and completion at 99% with nothing working.
System.log msgs do not reveal the cause easily. At one point I was getting byte offset kernel errors associated with the LV, but other times trying various disk repairs, it is silent and will just not mount.
I uninstalled several kexts that have fs related functions and after getting it to mount properly and complete encryption, I then tested each kext and found out that by reinstalling MacFuse, I was able to reproduce the problem.
I'm aware that MacFuse is obsolete and succeeded by OSXFuse, but that doesn't explain why running Parallels Deskop 9 on Mavericks would install the obsolete version.
Hope this helps somebody not wasting a full night on trying to recover their partially encrypted unmountable drive.