Thanks for your suggestions, Stimm and KevinJ.
I don;t know what this loader actually loads, but somehow
I don't think it's something like the mbr (master boot record?)
Here is some more info. I indeed downloaded the ISO imagines
from the web, and then burned CDs with EasyCD. I am not
sure that this is what causes the problem, since I am able
to boot from CD fine.
In the older system, I have a Western Digital drive which is
formatted with WDigital software. I also have a SCSI
disk in that machine, and that's where I want to install
REdHat 7.1
Actually I did succeed in installing the system with the FTP
install method yesterday night. So the system is now up
and running on the older machine.
That P200 / Asus machine is somewhat more complex,
because the CD rom is SCSI (Plextor, Tekram DC-390F).
Once booted from SCSI, the OS tries to find a driver for
the SCSI card. Hair-raising balance act... It does seem
to get beyond that stage on the CD install. As I said, the
crash comes with the /sbin/loader -- on both of my computers.
My suspicion now is that there is indeed some problem with
the burnt CDs. If the other machine also install fine via FTP
then this must have been the problem. I will report if the
other system also install fine. It's always nice when problems dissolve into thin air...
ho_chi_minh