Duplicating XENIX distribution disks

[Ray Curci]

After all the recent talk about how to duplicate XENIX distribution disks with 
DISPCOPY and dd, I attempted to dupe my 2.3.2 Xenix disks and install using the
copies without success.  MS-DOS v3.3 DISKCOPY command gives several
"bad track on side 1" warning messages and says "the disk may be unusable".
Sure enough, it is unusable (N1 copy goes crazy and others give TAR checksum
errors.  I then installed a minimal runtime system using the originals and
proceeded to do the following:
								dd if=/dev/rfd096ds15 of=/tmp/xxx bs=15k
	format -f /dev/rfd096ds15 ; dd if=/tmp/xxx of=/dev/rfd096ds15 bs=15k

No error messages while making the copies (80 records copied message only),
but N1 copies would not boot, and others gave tar checksum errors.
Any ideas on what is happening here?  Maybe I should just order a COPY II PC
DELUXE diskcopy board from Central Point.  I am very leary about not having
a backup copy of these disks especially when the Xenix complete s/w is so $$$.

ray at stat.fsu.edu
ray