From ArchosDocs
# /etc/fstab: static file system information.
#
# <file system> <mount pt> <type> <options> <dump> <pass>
/dev/root / ext2 rw,noauto 0 1
proc /proc proc defaults 0 0
devpts /dev/pts devpts defaults,gid=5,mode=620 0 0
tmpfs /tmp tmpfs defaults 0 0
usbfs /proc/bus/usb usbfs noauto 0 0
sysfs /sys sysfs defaults 0 0
/dev/sda1 /mnt/data vfat noatime,utf8,shortname=mixed,umask=000,gid=66,usefree 0 0
/dev/sda2 /mnt/system ext3 noatime 0 0
/mnt/system/optfs.cramfs.secure /opt cramfs loop,noauto 0 0
/mnt/system/gpsfs.cramfs.secure /gps cramfs loop,noauto 0 0
/mnt/system/bitmapfs.cramfs.secure /bitmap cramfs loop,noauto,ro 0 0