Hello,

I'm joining with gp...@ccf.auth.gr.

The whole idea (at least for me) of using a keyfile instead of a passphrase 
for unlocking a LUKS encrypted volume is that I don't have to enter the 
passphrase by hand.

I've tried to enter all the correct information into:

melissa:~# cat /etc/cryptmount/cmtab
# /etc/cryptmount/cmtab - encrypted file system information for cryptmount
# try 'man 8 cryptmount' or 'man 5 cmtab' for more details

enca {
dev=/dev/sdi1
dir=/media/usb
fstype=vfat
keyfile=/dev/sdi1
keyformat=luks
}

melissa:~# cat /etc/crypttab
# <target name> <source device>         <key file>      <options>
enca              /dev/sdi1    /etc/cryptmount/enca.key    luks

but when I try to mount it, cryptmount asks me for a passphrase instead of 
using the keyfile:

melissa:~# cryptmount enca
Enter password for target "enca":

man crypttab doesn't say anything about not being able to use a keyfile with a 
luks encrypted volume.

man cmtab says that when using keyformat=luks, keyfile should be either left 
out or be the device itself.

When it is possible to mount the partition manually via:

cryptsetup luksOpen /dev/sdi1 testfs --key-file /etc/cryptmount/enca.key

It should, in my opinion, be possible to automount with the same key file.
-- 
Torgeir Skjøtskift

Tel: +47 454 38 972




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