fszeman@oz.lerc.nasa.gov (Pat Zeman) (03/19/91)
I'm having a problem with the internal HD in my SE. After a successful
boot the machine locks upon its first need to access the HD. Now the
machine booted from this hard drive, but flashes the access light once
upon its first subsequently needed read and locks the machine up.
Experience, trial and error have revealed that if this internal Quantum 40
is unplugged the problem disappears (the trivial solution). Second, if instead
of using the menu shut down at the end of session, I just turn the power off,
the next boot up and subsequent access is successful; i.e. a dirty shutdown =
no problem. If after a lock up I restart with the programmer switch the
problem is still present. If I use the programmers switch and a minimum system
on floppy, everything boots till the HD icon appears, then lock. If I
switch off the power (count 5) and back on again, the problem is gone.
I've tryed about everything including; zap prams,install different systems,
erase and reformat drive, run checks on drive sectors and performance,...
The set up:
SE (68000, 16MHz)
RasterOps 19" monitor/Accelerator
Quantum 40 internal drive
StorWare (UniMac) HD setup software
System 6.0.3 (presently)
RasterOps says they know of no incompatabilities, and sent their latest cdev
for the monitor, no change. I've tryed zero inits, etc (minimum system),
no change.
I believe the answer lies in the difference created between a clean
and dirty shutdown. What does/doesn't happen in these two shutdown schemes?
How does this affect the HD after it has already started the machine
successfully? What else can I check?
This is a real puzzle!
--
Patrick L. Zeman Day Phone: 216-433-6788
USAF/NASA Lewis Research Center Evening Phone: 216-845-7223
21000 Brookpark Rd. MS 5-11
Cleveland, OH 44135
E-mail:fszeman@oz.lerc.nasa.gov