Alas, following your instructions with Sharp rom already installed gives me the usual:
"Warning: unable to open an initial console". and nothing more.
I too have got this problem.
I started with a totally clean cacko install, did the no-hd-require patch, installed the katastrophos kernel and modules and cacko worked fine.
I then repartitioned the HDD into 3 parts, 1 being a 3.25G partition ext3, 2 being 256MB swap, and 3 being 512MB of fat16 for compatibility/hacking. I unpacked into hdd1 the debian-eabi tarball, copied in the new yonggun kernel 2.6.24.3 modules, copied in under a different name the cacko/sharp katastrophos kernel. Everything looked cool. Then I flashed the yonggun 2.6.24 kernel using kat's updater.sh.
When the debian yonggun kernel boots, there's lot of text, I can't scroll back. The last few lines are (abbreviated as I'm lazy):
kjournald starting, commit interval 5 seconds
EXT3 FS on hda1, internal journal
EXT3-fs: recovery complete
EXT3-fs: mounted filesystem with ordered data mode.
VFS: Mounted root (ext3 filesystem).
Freeing init memory: 76K
Warning: unable to open an initial console.
I can suspend and resume, but nothing else has any effect!
Any suggestions how to fix it? Meanwhile, I'm reflashing katastrophos's sharp-compat kernel.
--edit-- OK, I'm back with working cacko, so that's good!
--edit2-- just checked, I'm not mad, I did unpack the debian kernel modules, so I wonder what went wrong.
--edit3-- ok, I am mad, I just reflashed the debian kernel, booted, and got a prompt. maybe because I left the CF memory card in? BTW, I note that if I leave my 4GB sd card in when I do the reset-OK-4 to flash, the Z says bad CF card.
--edit4-- ok, so what's the root password.... hmmm... ah, it's "zaurus"!
--edit5-- kexec stuff seemed to work, cacko kernel starts, but then the kernel panics. hmm.