Hi all! Dear Jonas, You guessed all perfectly... Now I've to backup and restore all partition on a new encrypted device with a 32 bytes key... Thanks for all! :) Cheers... Salud! Pierino, la peste. Info di servizio.. http://utenti.tripod.it/Pierino_lapeste/ E' l'indirizzo della mia home page.. utile a chi ha intenzione di rinfrescarsi la memoria sui modems. Ringrazio tutti i volenterosi che vorranno aiutarmi a migliorarla! --- Mer 7/1/09, Jonas Meurer <jonas@xxxxxxxxxxxxxxx> ha scritto: > Da: Jonas Meurer <jonas@xxxxxxxxxxxxxxx> > Oggetto: Re: Re: trouble managing key.file > A: "mum laris" <mum_laris@xxxxxxxxx> > Cc: dm-crypt@xxxxxxxx > Data: Mercoledì 7 gennaio 2009, 00:40 > Hey, > > On 06/01/2009 mum laris wrote: > > 2) sudo cryptsetup create sda10 /dev/sda10 > > --key-file=/mnt/"long_path_to_my"/sda10 > > Command failed: Key processing error: Could not read > 32 bytes from key > > file > > > > So, may be system expect a 32bit key, also if I've > use a shortest one > > and this is the reason for which auto-mount fails > during startup? Is > > there a way to explain it that: ok the key is shortest > of what do You > > expect, but... please don't say it anymore? > > The issue here is that plain dm-crypt mapping requires a > keyfile with at > least 32 bytes. iirc this is not the case for LUKS > mappings, but I'm not > sure about that. > > If I got you right, then you used a passphrase to > originally create the > dm-crypt mapping, and now you tried to setup mapping for > the same device > with a keyfile containing the passphrase instead of using > the passphrase > input prompt. > > Even if this works in theory (i'm still not sure about > it), then the > requirement of a key larger or equal to 32 bytes still > applies. So > you'll have to use a passphrase with more than 32 > bytes. > > And no, there's no way to make cryptsetup ignore this > requirement. > > Why don't you use the --key-file facility with a real > random key in the > first place to setup your dm-crypt mapping? > > greetings, > jonas --------------------------------------------------------------------- dm-crypt mailing list - http://www.saout.de/misc/dm-crypt/ To unsubscribe, e-mail: dm-crypt-unsubscribe@xxxxxxxx For additional commands, e-mail: dm-crypt-help@xxxxxxxx
