Re: SCSI Boot Error?

[pubpc1@library.ucla.edu]

fl332@cleveland.Freenet.Edu (John L. Graham) wrote:
>
>I'm troubleshooting a problem with a Q-Drive and an Apple High Speed SCSI
>Card and I'm a bit stumped. The card and drive are from a IIe that's
>performed flawlessly for years. All of a sudden we're getting the message
>"SCSI BBOT ERROR" when we try to boot the drive. I put the card and drive
>on a GS to take a look at it and it seems to work okay. You can access
>data and programs from the Finder. I ran it through Deliverence which
>found a damaged bit map (it looked like a _minor_ problem) but that didn't
>fix the boot problem. As a band-aid fix I wrote a tiny BASIC program on a
>5.25" disk which we boot, then in turn launches the file manager on the
>hard drive...
> 
>     10 PRINT CHR$(4);"-/Q1/EZDRV.SYSTEM"
> 
>             ...and it seems to work, but we'd really like to get a real
>fix. BTW, I also tried another Apple High Speed SCSI card with the same
>results which suggests a drive problem. The cards have been configured
>with all the DIP switches in the down position. The drive is terminated,
>and I tried diferent SCSI ID setting just for kicks.
> 
>Any thoughts?
> 
>Thanks o'plenty!
> 
>John


What is probably happening is that the drive has not spun up when you
tried to boot.  The Apple HS card, when set to one SCSI ID (3?), will
add a several second delay to the boot process.  This should give the
drive enough time to spin up and allow you to avoid the error.

Otherwise, you can let the error appear, wait for a few seconds, and
do an openapple-cntrl-reset warm boot sequence.

If it is a problem with the volume, back up the files, reformat the
drive, then put the files back.  That should fix it.