IBM Convertible 5140 saga

[Andrew Strouse]

I just received a IBM Convertible 5140 in what looks like great condition.  It even had the little "cardboard floppies" in the drives.  It didn't come with any disks, so I downloaded the starter disk from ibm's ftp site.  When I try to boot the computer I get the message 'Disk Boot Error'  I tried 3 different startup floppies (all made with the thing I downloaded from ibm) and then I even tried an old ms dos 5 disk I had lying around.  Then I cleaned the disk heads and tried everything all over again. (3 fresh floppies and the old dos disk)  Still no results,  So I googled up disassembly instructions and switched drive A with drive B,  Then I repeated as above.  Still 'Disk Boot Failure'.

Does any one know what else I should try?  Does any one have any extra known working drives sitting around?

Thanks in advance for any help anyone can provide.

Andrew Strouse
( kittstr at earthlink.net )