reason of using dm-mod

a_minor · 12-19-2008, 03:47 PM

hi,

just finding out why we use dm-mod module in encrypting partition , and i have this problem when i want to modprobe it:

Quote:

Command failed: BLKROGET failed on device: Inappropriate ioctl for device

i khow that dm-crypt & aes modules are essential for device mapping and aes for standard encryption , but what for is dm-mod? and because of not being of it this error would happen?
and what must i do to fix it?

thanks

unSpawn · 12-20-2008, 08:28 AM

No, it's the other way around: 'modinfo dm-mod' would have shown you dm-mod is necessary for device mapping.