/boot/kernel-cmdline should contain something like: mtdparts=sharpsl-nand:7168k@0k(smf),44032k@7168k(root),-(home) jffs2_orphaned_inodes=delete. I haven't tested this, so I don't know what it should be exactly. I gladly leave this for others to find out
I tried this string, it's still a no go. No option shows on the menu for my cacko nand partition when booting.
I'll wait for your next release.
I noticed on the instructions page for installing zubuntu, that you have a picture of Zaurus with zubuntu on flash, on the boot menu.
I found a thread in pdaxrom that has several "different" sets of numbers in this string, and a default set of numbers.
I would paste them in here, but I don't want to confuse anyone else with these widely varying sets of numbers.
You do know most people re-partition their flash in pdax beta3 to 121MB