[comp.sys.tandy] Double-sided drives for Mod 4

jnp@calmasd.GE.COM (John Pantone) (09/02/87)

I recently got hold of two double sided double density 5" floppy drives
which had been part of a XEROX CP/M machine.  They work well and I have
installed one as drive :1 on my Mod 4.  After changing the step rate on
drive :1 and sysgen-ing it works great EXCEPT it will only function as a
single sided drive.  If I answer 2 to the SIDES? prompt from the format
utility, it appears to fail to verify every track - it lockes them out
(00* 01* ...)

If, however, I use SuperCROSS/XT to format the disk as one of the double
sided double density CP/M formats - it works just fine.

It isn't - apparently - the hardware.

WHAT MUST I DO??  ANY GUESSES ?

e-mail please.
-- 
These opinions are solely mine and in no way reflect those of my employer.  
John M. Pantone @ GE/Calma R&D, Data Management Group, San Diego
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