You need HD disks for boot and root disks - 720 K is not enough.
That's why you get I/O errors on the 720th 1k block of a 720K disk ;-)
Hope this helps,
Martin
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+-------------------------------------------------------------------------+
|Dipl.Ing. Martin Kroeker            kroeker@oc1.oc.chemie.th-darmstadt.de|
|Institut f. Organische Chemie                db7p@mvs.hrz.th-darmstadt.de|
|Universitaet (TH) Darmstadt                          db7p@ddathd21.bitnet|