Encripted file system

From: David Harel
Date: Mon Oct 27 2008 - 09:16:12 EST


Hi,


I am trying to read encrypted CDroms created using the procedure:

http://www.gentoo-wiki.info/HOWTO_Burn_Encrypted_DVDs

but I get the error: ioctl: LOOP_SET_STATUS: No such file or directory.

This procedure was working for me until some months ago when I upgraded the kernel (now 2.6..25-gentoo-r7) and failed to check this feature. I don't remember which kernel version it was last that I had this feature working but it seems earlier then 2.6.23-r3.

This seems to me like a change in the mount options syntax because when I looked at other web documents I noticed a different syntax. The syntax that used to work for me:

mount -t iso9660 ... -o loop=/dev/loop0,encryption=AES256

The syntax that I noticed on other sites:

mount -t iso9660 ... -o loop=/dev/loop0,encryption=aes

but when I try the "new" syntax I get a problem with file system type:

mount: wrong fs type, bad option, bad superblock on /dev/loop0,

and in dmesg I get:

ISOFS: Unable to identify CD-ROM format.


Mount to iso image (not encrypted) goes well.

Extracting the content of the cdrom using: dd if=/dev/cdrom | aespipe -d > image.iso - also works fine.

Any idea?


--
Regards.

David Harel,

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