You do not need to format the disk, you just need to luksFormat the LUKS container (i.e. full disk, partition or loop-file). Your LUKS container here is /dev/sda1 and you are luks(re)Formatting it with the lines you give. Regards, Arno On Thu, Oct 29, 2015 at 23:28:58 CET, xxiao8 wrote: > I had a one liner change in my cryptsetup script (see below), as > long as the key-file is the same, I can keep using the content on > the hard-drive, which is a surprise to me. Doesn't > switch-to-aes-xts-plain64 mandate a reformat of the hard drive? am I > missing something? > > > Changing from > cryptsetup -v -c "aes-cbc-essiv:sha256" --key-size 256 --key-file > /etc/keys/sda1.key luksFormat --use-random /dev/sda1 > > to > cryptsetup -v -c "aes-xts-plain64" --hash sha256 --key-size 512 > --key-file /etc/keys/sda1.key luksFormat --use-random /dev/sda1 > > Thanks for your help, > > xxiao > > _______________________________________________ > dm-crypt mailing list > dm-crypt@xxxxxxxx > http://www.saout.de/mailman/listinfo/dm-crypt -- Arno Wagner, Dr. sc. techn., Dipl. Inform., Email: arno@xxxxxxxxxxx GnuPG: ID: CB5D9718 FP: 12D6 C03B 1B30 33BB 13CF B774 E35C 5FA1 CB5D 9718 ---- A good decision is based on knowledge and not on numbers. -- Plato If it's in the news, don't worry about it. The very definition of "news" is "something that hardly ever happens." -- Bruce Schneier _______________________________________________ dm-crypt mailing list dm-crypt@xxxxxxxx http://www.saout.de/mailman/listinfo/dm-crypt
