Boot disk troubles

[Ryan Jameson <ratguy proaxis com>]

I'm trying to create a working boot disk so as I can install 6.2. Every 
disk I've created so far tells me this on booting: 'boot failed: please 
change disks and press a key to continue'

Anyone have any ideas as to what might cause the disks not to work? I tried 
both dd in Redhat 5.2 and rawrite in Dos, but both give the same error on 
boot up.

I'm using boot.img that I extracted from the iso file I downloaded, and 
also tried using a boot.img that I downloaded straight from an ftp server.

Thanks
ryan