UNIX for Dummies Questions & Answers

sudo mkdir /mnt/crypt
sudo mount -t ecryptfs b13600744.eCryptfs /mnt/crypt
Passphrase: 
Select cipher: 
 1) aes: blocksize = 16; min keysize = 16; max keysize = 32 (loaded)
 2) des3_ede: blocksize = 8; min keysize = 24; max keysize = 24 (not loaded)
 3) cast6: blocksize = 16; min keysize = 16; max keysize = 32 (not loaded)
 4) cast5: blocksize = 8; min keysize = 5; max keysize = 16 (not loaded)
Selection [aes]: 
Select key bytes: 
 1) 16
 2) 32
 3) 24
Selection [16]: 
Enable plaintext passthrough (y/n) [n]: 
Enable filename encryption (y/n) [n]: y
Filename Encryption Key (FNEK) Signature [fbc2d5c3151701c4]: 
Attempting to mount with the following options:
  ecryptfs_unlink_sigs
  ecryptfs_fnek_sig=fbc2d5c3151701c4
  ecryptfs_key_bytes=16
  ecryptfs_cipher=aes
  ecryptfs_sig=fbc2d5c3151701c4
WARNING: Based on the contents of [/root/.ecryptfs/sig-cache.txt],
it looks like you have never mounted with this key 
before. This could mean that you have typed your 
passphrase wrong.

Would you like to proceed with the mount (yes/no)? : yes
Would you like to append sig [fbc2d5c3151701c4] to
[/root/.ecryptfs/sig-cache.txt] 
in order to avoid this warning in the future (yes/no)? : no
Not adding sig to user sig cache file; continuing with mount.
Error mounting eCryptfs: [-20] Not a directory
Check your system logs; visit <http://launchpad.net/ecryptfs>