I have cacko working from Nand, but a card installable cacko image, that worked from media more or less like zubuntu or angstrom would be really interesting, too.
I would imagine it wouldnt be any different. Just partition your SD card, extract the Cacko root fs to said partition, place a Cacko kernel in and appropriate kernel-cmdline in /boot on said partition and kexec-boot should be able to see it.
Is your Cacko installed in a kexec-boot system? Were my assumptions about the installation process correct (i.e. is it easy enough to find the kernel amongst the Cacko install "media", and will the kernel-cmdline work?
I have two C3200s and I have never made use of the NAND partition on either of them. What I have seen of the Sharp rom disgusts me, and I am not in the slightest bit interested in Cacko from what I know of it (no offense to the developer) but that funky cut down version of pdaxrom could be fun to have in NAND.
I would really love Poky in NAND too but I have no idea how you would do that.
To be honest NAND scares me just don't know much about how it is all laid out or if there is important stuff there...
My cacko is installed in a kexec system. The easiest way to make the kernel-cmdline work from the nand install is to do cat /proc/cmdline > (partition)/boot/kernel-cmdline. works like a charm. I'd probably just copy the kernel-cmdline from the zubuntu default setup to the sd or cf partition and see how that went. The part I'm not sure about is how to extract the cacko root fs from nand to a partition...
Incidentally, while I kind of agree that the sharprom is ugly, cacko does make for a handy zpod/pda option. I moved to zubuntu form a really solid pdaXrom setup because pdaXrom is decent as a media player, but it isn't very pdaish, and other than the bvdd acceleration in the 2.4 kernel is just completely outclassed as an X based linux desktop by the newer software in zubuntu. This is of course assuming one is looking for functions, and not simply wanting to play with systems. I think my next system to play with will probably be bsd...