5.3 STABLE Boot CD Fails on PPRO 200 (BTX halted)

[Edwin Brown]

I've built 5.3 Stable as of tonight 03/02/2005 with the following in make.conf

CPUTYPE=i686
CFLAGS=-02 -pipe

It was built on a p4. 

I went to install this on my trusty firewall machine and I get the following 
error: 
-----BEGIN ERROR-----
CD Loader 1.2

Building the boot loader arguments
Looking up /BOOT/LOADER... Found
Relocating the loader and the BTX
Starting the BTX loader

BTX loader 1.00 BTX version is 1.01

int=0000000d  err=000000c0  efl=00010a47  eip=00015528
eax=00000000 ebx=00000001 ecx=ffffffff edx=00094fa0
esi=01164e7f  edi=c8b66ff7  ebp=00093ff8  esp=7c24ddf4
cs=002b  ds=0033 es=0033 fs=0033 gs=0033 ss=0033
cs:eip=9a c0 00 00 9a c0 00 00-9a c0 00 00 9a c0 00 00
           9a c0 00 00 9a c0 00 00-9a c0 00 00 9a c0 00 00
ss:esp=ff ff ff ff ff ff ff ff-ff ff ff ff ff ff ff ff
            ff ff ff ff ff ff ff ff-ff ff ff ff ff ff ff ff
BTX halted 
-----END ERROR-----
Also, the 5.3.isos downloaded from ftp.freebsd.org fail to boot as well. 

It's not hardware related as I'm able to pop in a OpenBSD3.6 snapshot
and boot from that.

Any help would be greatly appreciated. I'm going to try the floppies next.