[rdiff-backup-users] Nooooooooo!

[JonathanSmith]

I attempted to restore a set of files to a directory and was told:

Fatal Error: Previous backup to /mnt/e3 seems to have failed.
Rerun rdiff-backup rdiff-with --check-destination-dir option to revert 
directory to state before unsuccessful session.

I fail to understand the instruction, find no such option described in the 
manual, and when I run the above command in the rdiff-backup-data directory, 
get python errors:

# rdiff-backup rdiff-with --check-destination-dir
Traceback (most recent call last):
 File "/usr/bin/rdiff-backup", line 23, in ?
   rdiff_backup.Main.Main(sys.argv[1:])
 File "/usr/lib/python2.4/site-packages/rdiff_backup/Main.py", line 280, in Main
   final_set_action(rps)
 File "/usr/lib/python2.4/site-packages/rdiff_backup/Main.py", line 213, in 
final_set_action
   if restore_set_root(rps[0]): action = "restore"
 File "/usr/lib/python2.4/site-packages/rdiff_backup/Main.py", line 655, in 
restore_set_root
   assert (from_datadir[1] == "increments" or
AssertionError: ('rdiff-backup-data', 'rdiff-with')