On Tue, 11 Jun 2002 15:20:06 -0400, Wayne F Davis wrote: > my modules.conf includes: > alias cipher-aes-ecb cipher-aes > alias cipher-aes-cbc cipher-aes > > my fstab: > /dev/loop0 /mnt/crypt ext3 defaults,loop,encryption=aes,keybits=128 1 0 > > --- > > However, I can't mount the drive using mount ... > # mount /mnt/crypt > ioctl: LOOP_SET_FD: Device or resource busy The device in your fstab should be /path/cryptfile. > First, I have to setup the loopback device with losetup, after loading > the modueles: > # modprobe cipher-aes > # modprobe cryptoloop Ah yes, I'd forgotten about the cryptoloop module... one way to have it loaded automatically is to add to your modules.conf: add above cipher-aes cryptoloop > # losetup -e aes /dev/loop0 /path/cryptfile > > Then, I can mount it: > mount /dev/loop0 /mnt/crypt Right, that's the long-hand way. When you give mount the "loop" option it does the losetup automagically. One problem is that journaling filesystems don't work well with a file-backed loop---something to do with write-ordering. So, I'd recommend using the "noauto" option in the fstab entry, so you can manually fsck it before mounting if necessary. HTH, -- Ben Slusky | Save the whales. sluskyb@stwing.org | Feed the hungry. sluskyb@paranoiacs.org | Free the mallocs. PGP keyID ADA44B3B - Linux-crypto: cryptography in and on the Linux system Archive: http://mail.nl.linux.org/linux-crypto/
