[comp.sys.atari.st] Daisychaining HDs

mlake@irscscm.UUCP (Marshall Lake) (02/16/91)

I'd like to relay a problem I've been experiencing to readers here in
an effort to find a solution or gain some insight into the cause.

For the last several years I've been running a 520 ST (1/2 meg, TOS
1.0) with an old Supra 20 MB drive with nary a problem.  I have always
used Supra's booter to boot from floppy.  Recently I purchased a Supra
80 MB drive and set up my system to daisy chain the 20 onto the back of
the 80.  I altered the internal SCSI assignments so that the 80 is 0
and the 20 is 1.  I used SUPEDIT to change the partitions on the 20
from C, D, and E to H, I, and J.  The 80 was preformatted with
partitions C, D, E, F, and G.  I set the booter up to boot from HD.
The problem occurs at boot time.  The following scenerio happens 95% of
the time when I boot my system:
Power on.  After a couple of seconds the screen displays a floppy only
system in lo-rez.  Press reset.  After many seconds the system appears
to boot correctly displaying all partitions in med-rez.  But neither of
my floppy drives are accessible by the system.  Press reset once
again.  After many seconds the display comes up again as it did after
pressing reset the first time.  And now both floppies are accessible by
the system.

Additionally, it is *very* difficult for me to boot a program from
floppy.  Holding down <CTRL><ALT><SHIFT> does not always tell the
system to boot from floppy.  It seems to works on an erratic basis.
Even powering down the HDs does not fix this problem.

Does anyone have any insights/suggestions/fixes for my problem(s)?

-- 
Marshall Lake
mlake@irscscm.UUCP
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