Re: ecryptfs doesn´t like noauto and noatime

[Jakob Unterwurzacher <jakobunt@gmail.com>]

On 16.01.2012 10:44, Martin Steigerwald wrote:
> Hi!
> 
> I have
> 
> merkaba:~> grep ecrypt /etc/fstab
> /home/.ms               /home/ms                ecryptfs        
> noatime,noauto  0       0
> 
> And get:
> 
> merkaba:~> mount /home/ms
> Passphrase: 
> Attempting to mount with the following options:
>   ecryptfs_unlink_sigs
>   ecryptfs_fnek_sig=0408d19ec184c207
>   ecryptfs_key_bytes=32
>   ecryptfs_cipher=aes
>   ecryptfs_sig=0408d19ec184c207
> Error mounting eCryptfs: [-5] Input/output error
> Check your system logs; visit <http://launchpad.net/ecryptfs>
> 
> 
> Still it works.
> 
> 
> In dmesg I see:
> 
> [ 2657.888355] ecryptfs_parse_options: eCryptfs: unrecognized option 
> [noauto]
> [ 2657.888359] ecryptfs_parse_options: eCryptfs: unrecognized option 
> [noatime]
> [ 2657.913215] alg: No test for __gcm-aes-aesni (__driver-gcm-aes-aesni)
> 
> 
> Thus I removed at least noatime, but then I still see:
> 
> [ 2839.460200] ecryptfs_parse_options: eCryptfs: unrecognized option 
> [noauto]
> 
> 
> On could argue about noatime when ecryptfs doesn´t override the setting of 
> the underlying filesystem - i.e. doesn´t write the atime itself. But I 
> think noauto should be silently ignored.
> 
> Without noatime it would ask me the passwort upon boot, but I do not like 
> that since I do not use that user everytime.
> 
> I could use mounting via pam, but I like to have a different password for 
> the user stored in /etc/shadow than the password from the filesystem 
> itself.

Note that this should work by creating ~/.ecryptfs/wrapping-independent
. Pam will ask for the ecryptfs password explicetely then.

Jakob