Using grml64small and following http://wiki.grml.org/doku.php?id=persistency from step by step

I get the following error in the boot.log

Begin: Copying live media to ram ... Begin: mount -t tmpfs -o size=241260k /dev/shm /live/medium_swap ... done.
Begin: Running /scripts/live-realpremount ... done.
Begin: Mounting "/live/medium/grml64-small.squashfs" on "//grml64-small.squashfs" via "/dev/loop0" ... done.
mount: mounting /dev/sda1 on /live/persistence/sda1 failed: No such device
mount: mounting /dev/sda3 on /live/persistence/sda3 failed: No such device
mount: mounting /dev/sda on /live/persistence/sda failed: No such device
mount: mounting /dev/sdb on /live/persistence/sdb failed: No such device
/init: line 230: can't open /tmp/custom_mounts.list: no such file
done.
Begin: Configuring fstab ... done.
Begin: Preconfiguring networking ... done.

Help please