And a note for the next idiot who spends ages deciding what would be a quick way to view his hidden partitions
[root@kindle /dev]# mount -o loop /dev/mmcblk0p2 /mnt/mmc
[root@kindle /dev]# cd /mnt/mmc
[root@kindle mmc]# ls
bin cust dev etc lib mnt opt proc sbin sys tmp usr var
simple as that.