Yesterday I must have done something to my system which now makes it impossible to boot into OS 9.1, but OS X 10.2.8 continues to function OK. When I try booting my PM8500 with the option key down, all I get are grey screens on my 2 monitors. I get no messages, symbols, etc. If I have Mac OS 9.1 system CD disk loaded and try booting from it by holding the C key down while restarting, the same thing happens. Only grey. Under OS 10.8.2 I used Disk Utility to verify all partions on my HDs, but it found no problems. I suspect that the problem was caused by my downloading of scanning software for use under OS 9 and then copying the installers to my OS 9 partition (while in OS 10.2.8). I have since deleted those files. What steps should I try to fix this problem?
Thanks in advance, Doug Throp
I am assuming a typo where you refer to 10.8.2 ;-) or have you got really early Alpha!!
Are you trying to boot with OS 9 CD? if not try that, then try below options.
My first suggestion would be to ZAP PRAM.
Restart and hold command, option, P and R keys until you hear the Mac restart. I would suggest holding these keys down for at least two/three restart chimes.
Another option if above doesn't work is remove battery from MB (yes I know it's a pain on 8500 and leave o/night. And resetting MB via CUDA switch cannot hurt either.
I have seen similar glitches that appear to have been ATA 100 card I had as boot device - switching back to on board SCSI drive resolved problems. You may need to unplug drive that X is installed on and force the mac to go looking for a system folder to start from by scanning SCSI busses
Hope this helps
Simon
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