Hi. I guess this question has been discussed earlier, and is probably well documented somewhere, but I somehow can't find a saticfying answer. What I have is a laptop running debian. I've dd'ed up a 30GB file from urandom and added dmcrypt/luks ontop of it & mounted it through the loopback and a plain reiserfs, no lvm or so. This is my homedirectory, and it gets mounted whenever I logon/logoff, PAM. And now to the problem. 30 GB aint enuff, I have more diskspace available (20GB) in the rootfs, which I would like to allocate to the encrypted file. What I THINK I should do is to simply dd up (with >>) 10 more GB to the already existing file, use cryptsetup resize (lacking syntax atm) to expand the crypto over the new 10GB aswell, and finally let the reiserfs grow over the remaining GB's. Problem is that I do not have 30GB's free to play with, so I can't do a simple backup of the file. I dont have another *nix host around with 30GBs free space either, so I cant do ne fancy netcat or similar either. simply, It has to work at the first try. So, can anyone provide me with more info? will my dd >> cryptofile, cryptsetup resize, and reiserfs grow expand my cryptofs in the way I want? or will it somehow fiddle with something so I either loose the 10GB's added or even worse loose the content of the existing cryptofile? Any tips would be appreciated. ps, bonus quiz 1) Does my cryptofile contain everything I need? ie all keys etc? so if I had a backup on another host, I'd be able to remount it with my existing keys? bonus quiz 2) a lil curious, If I would dd up space, forget the cryptosetup resize part, and resize my reiserfs. Wat would happend? Would 1/4th (10 of total 40GB) of my data reside on unencrypted storage? ds. Thanks, Jesse. --------------------------------------------------------------------- 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
