I'm testing out different distros for the RPi and I want to look at XBian. I only have 1 SD card, so I'm using BerryBoot. I tried to convert the Xbian img to SquashFS format, but there's an issue. You can see some of it here http://forum.xbian.org/thread-280-post-2870.html
Basically, the image is screwed up. So I tried to boot XBian on a borrowed SD card, interrupt the boot w/ Control+C, then used dd bs=1M if=/dev/mmcblk0 of=/media/sda1/backup.img
Then on a separate PC, used mksquash on the backup.img, then installed the img file in BerryBoot, but now I get a problem. When booting the img it says: fsck.ext4: No such device or address while trying to open /ren/rootdev Possibly non-existent or swap device? fsck died with exit status 8
Then a maintenance shell is started which I try to fsck, but it says /dev/mmcblk0p2 is in use so it aborts. What did I do wrong or what can I do to fix the img from the Xbian site?