BusyBox v1.6.1 (2008-05-22 10:32:35 EEST) Built-in shell (ash)
Enter 'help' for a list of built-in commands.

~ $ sudo debian
Setting up the chroot...
using device: /media/mmc1/debian-final.img.ext2
Using ext2 file system
using /media/mmc1/debian-final.img.ext2 on the turbo-loop
.
mount: mounting /dev on /debian/dev failed
mount: mounting /proc on /debian/proc failed
..
mount: none is write-protected, mounting read-only
mount: mounting none on /debian/dev/pts failed
mount: mounting /tmp on /debian/tmp failed
...
mkdir: cannot create directory '/debian/media/mmc2': Permission denied
mount: /media/mmc2 is write-protected, mounting read-only
mount: mounting /media/mmc2 on /debian/media/mmc2 failed
mkdir: cannot create directory '/debian/media/mmc1': Permission denied
mount: /media/mmc1 is write-protected, mounting read-only
mount: mounting /media/mmc1 on /debian/media/mmc1 failed
....
mount: /home/user is write-protected, mounting read-only
mount: mounting /home/user on /debian/home/user failed
mount: /var/run/dbus is write-protected, mounting read-only
mount: mounting /var/run/dbus on /debian/var/run/dbus failed
touch: /debian/tmp/chroot-complete: Permission denied
Everything set up, running chroot...
chroot: cannot execute /bin/sh: Permission denied

This is a brand new sd card its on now but I did an installation on a different card, did the same thing as described above.
Thanks qole : )