Indigo 2 install problem

["James C. Bevier" <jbev@jbsys.com>]

I am new with Indigo 2, so be nice.  I have downloaded the tftpboot.img file and 
set up a machine to boot from.  I have also got a serial cable to do a terminal 
install.  I guess the GR3-Elan vidio is not supported.  I am able to boot with 
the command "bootp():root=/dev/ram0".  It boots until a line is displayed that 
says:  "SGI Zilog8530 serial driver version 1".  That is the last line displayed 
and the system is locked up.  I tried the netboot-boot.img and the 
cdrom-boot.img and they both end the install with the same line displayed.  All 
be it in a a different place.  Where can I go from here?

Thanks,

Jim