Compaq ProLiant 5000R

[bsd]

I just recieved a Compaq ProLiant 5000R that I won on Ebay for $50.  It works, but is clearly not like any other machine I've ever dealt with.  I want to install 4.7 on it, but I keep getting "Unexpected EOF" errors if I try to boot the kern.flp disk and I can't seem to figure out how to get it to boot from the CD-ROM.  It can apparently be done, as Compaq recommends such a procedure in some of their FAQ's for other features.  What am I missing?  Is there something else I need to track down?