[sclug] Mount whole-disk image?

Alex Butcher lug at assursys.co.uk
Sun Jan 27 08:00:00 UTC 2008

On Sat, 26 Jan 2008, John Stumbles wrote:

> I know if I make an image of a filesystem with
> 	dd if=/dev/sda1
> (say) I can then mount it loopback and access it as a filesystem. Can I do 
> something similar with an image of an entire disk, e.g. made with
> 	dd if=/dev/sda

Yup, but it's a bit of a pain. IIRC, you need to manually set up the loop
device, using losetup and its -o (offset) parameter. If you run 'sfdisk -d
/path/to/dd_file', the start parameter should give you the appropriate

Once you've set up the loop device, you should be able to just mount it in
the normal (i.e. non loopfs) way (mount -t ext2 -o ro /dev/loop0

Alex Butcher, Bristol UK.                           PGP/GnuPG ID:0x5010dbff

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