this is a simple question with probably a simple answer, but i looked hard for instructions and found none. i am posting via gmane; not a subscriber. i have an internal hd (currently unencrypted) and an external hd. the system normally runs on the internal hd, and the external hd is for backup. i want to rsync mirror everything on the internal drive to a single encrypted partition on the external drive (*). here is the catch: i also want to be able to boot to the mirror in case something goes wrong with the main internal drive. i assume i'll need an unencrypted boot partition on the external drive to hold the kernels. but the mirror is encrypted and i don't know how to dm map and mount it, yet still boot to it. i noticed a command called pivot_root, which tantalizingly implies that i can boot to some sort of temporary fs (on an unencrypted partition?), mount the encrypted one (*), then switch to it, but i tried it and it didn't work. i don't mind using a grub floppy to boot. i use debian etch. i'm sure this is possible because there are instructions for encrypted root. there just aren't any for when you're not installing a new os. thanks. (*) or, *ideally*, to a subtree on an fs on an encrypted partition on the external drive, if such a subtree can be booted to. that would be ideal because then i can have an arbitrary number of mirrors. --------------------------------------------------------------------- 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
