-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Dear all! It is generally recommended good practice to fill a device with /dev/urandom before creating a LUKS encrypted device upon it. Fine, understood. But how to do it in the following situation: When I enlarge a LUKS volume, say by expanding the RAID or enlarging the logvol (LVM partition) that hosts the LUKS volume, how can I then fill the additional space with random data before enlarging the LUKS volume? If the size before enlargement is x blocks can I then just dd if=/dev/urandom of=/dev/logvol seek=x ? How to make damn sure that dd starts at the right position and not before? Should one refrain from filling the additional space? Is there a parameter in "cryptsetup resize" that perhaps does the work for me, like: sudo cryptsetup --verbose --fill-with-dev-urandom resize LUKSNAME regards, Wolfgang -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.2.1 (MingW32) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iD8DBQFJ6HiaR6b2EdogPFsRAusTAKCSVo9qKWlkKOHw4utxYxNtU7TpuACfZIxe dQcYYiqfRgdbfE5OAh5DgfI= =DEUy -----END PGP SIGNATURE----- --------------------------------------------------------------------- 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
