Today as I was working on my MacBook Pro, it became incredibly slow and almost impossible to work with. I spent five minutes trying to restart it from the system menu, and eventually I did.
It took it another ten minutes to switch off, and then I got the booting gray screen with the wheel indicator. I expected it to boot after a while, but apparently 20 minutes weren't enough.
I had to switch it off while booting and try again. During subsequent boot attempts, I would get a gray screen with a wheel and an empty progressbar that never moves (tested—I left it for three hours).
I inserted the Snow Leopard DVD so I could launch Disk Utility (as advised on the Internet) but it gave no effect. I still see the empty scrollbar, and worse, the MacBook turns off after a while (about 5 minutes after the start).
What are my next steps?
To recap my observations:
- The first time I restarted the system via menu so apparently it saved the state
- Second time I restarted it while booting
- I do hear the chime
- Then I see the spinning wheel, Apple logo and an ever empty progress bar
- Now it turns off on its own after a while
I tried holding D to launch diagnostics as described here. I heard the DVD slot make a sound about ten times, and then it spat out the Install DVD. I saw no diagnostics, and then it turned off again.
Holding C with the DVD inside gives me ten minutes of the optical drive sounds as if it were stuck (to clarify, I never had problems with it before). Then it rebooted and got stuck again.