Redhat 7.3 install problem

[Wendy S]

Despite the fact that this computer (750 mHz Athlon) is working _fine_, DH 
thinks I need a faster one.  So he put all the bits together and put in the 
Redhat 7.3 disc 1.  It goes along fine and then dies with:

SystemError: (16, 'Device or resource busy')

Full details here:
http://members.cox.net/opensourceaz/etc/anacdump.txt

Bear in  mind that I don't do hardware!  DH says he looked at Redhat's site 
but didn't find much in the way of a list of compatible hardware.

Does anyone have any ideas based on the file above?

-- 
Wendy in Chandler, AZ