Cyclone 0.6 and kernel boot

Guys,

This Q is rather off topic.  I got my hands on CATS
and have troubles to boot Linux kernel installed on HD.
Does anyone out there have succesful experience to boot
the Debian 2.2 kernel off with it?

The system has delivered with NetBSD 1.5_ALPHA
preinstalled.  It seems to work fine.  We spent many
hours to start Linux installation process.  We managed
to run LINUX installer well.  We rebooted CATS and found
cyclone CATS ROM monitor 0.6 failed to boot so.  It
complains 'the file requested is not secure' refusing to
proceed.  The message does not make sense to us.

It's not clear that CATS ROM monitor can recognize PC-style
"upto 4 distinct slices in a single HD."  Apparently it
does for BSD tahoe disklabel and FFS.  The ROM monitor
should do as well for PC-style slice and EXT2FS combination
if it claims Linux/ARM support.  I'm wondering we failed
to see clear answer.  Our possible solution is to do TFTPBOOT
vmlinuz with "load-then-call" sequence to run the diskful
configuration.  Any help welcome.

Toru Nishimura/ALKYL Technology