Model: iMac8,1, BootROM IM81.00C1.B00, 2 processors, Intel Core 2 Duo, 3.06 GHz, 4 GB, SMC 1.30f1
Graphics: NVIDIA GeForce 8800 GS, NVIDIA GeForce 8800 GS, PCIe, 512 MB
Mac OS 10.6.4 Snow Leopard
HD: Hitachi : Capacity: 750.16 GB (750,156,374,016 byte
Model: Hitachi HDS721075KLA360
MY ISSUE: I have recently seen a slow degradation in my system's start-up actiion - for which I have utilized various "fixes" that I know of from my own experience and tech reading ( run Applejack [the new Snow Leopard version]; run ONyx, find bad pref files and delete them, run a system Restore using Super Duper, run a Full System Restore using Time Machine and OS X Disk utility) - all of which have become, one-by-one, ineffective.
The history of the issue is as follows : ever since accepting the "10.6.4" Apple Update, i noticed that startup began to run slowly. Ok, no big deal - the machine still started up, eventually! ( after a delay of, maybe, 30 seconds...which grew progressively longer to about 60 sec's
). Then the problem got worse: no starup at all. When trying to startup, my screen progresses to the grey before-the-Apple-logo screen, then it fills up with lots of baffling text. A few issues which I saw repeatedly on this grey screen were something like : "no de-bugger found," "Panic...." and many other lines of text that, I'm sorry, I did not record!
Curious, i searched Apple Forums for a similar problem, but found nothing.So I set off on my own to see what I could do.
A run of Onyx found 4 corrupt Pref. files. I deleted them
. That was good for one good startup
. Then, back to where I was....slow
, then NO startup!
I have an install of Drive Genius 3 (which often seems to find false positives - which I ignore), and I remembered that one frequently repeating DG3 message I had been getting lately was "There are 2 bad sectors on your HD. Please erase HD and run Scan to repair
" As I said, I tend to ignore these DG3 nags because previous experience has proven that, in fact after a scan, the app fails to find these "false positive" bad sectors. But in this case, since i was definitely having a serious problem, I ran DG3's "Extended Scan" on my system Drive (without wiping my drive - no way, man!). **Amazingly, the scan took a very long time to complete
- seven full days
[I have a 768 GB HD]" - AND IT DID FIND AND REPAIR 2 BAD SECTORS! Wow! I thought. I'm back in business. I noticed a real speedup of my system after using DG3!
But. just like with Onyx, that fix was good for one free good bootup - then back to the "grey screen of death text.
Still, Applejack was always
able to ride to the rescue and boot me up ok. But I know that that's not normal - I shouldn't need Applejack everytime I startup!
As mentioned above, I have an install of Super Duper - which I highly recommend to everyone! I twice restored an earlier "good" system from my Super Duper external disk to my HD. But after exiting Super Duper and trying to bootup to my HD, no go. Same old "grey screen of death text. (I can
run the machine fully functional from a Super Duper backup on the external, so it's not as if I can't use my machine at all
Next, I tried a full system restore from Time Machine - which worked perfectly for me once before - but this time, even though I restored to a time *before* 10.6.4, no difference. Still no good startups! I used Super Duper to go back to the more recent 10.6.4.
And then, today, even Applejack would not boot me up
- it returned a screen of its text, part of which mentioned, like before, "no debugger found,"
At this point I am up and running after having left the power cord disconnected for several hours, and then running a "deep" Applejack checkup
Oh, also..one more clue....many of the "successful" startups (not all of them!
) have thrown an Error window-after starting up ok - (see attached "Error".jpg) that I am completely unfamilar with, which asks ;"Where is System Restore?" and gives me a browser window - to find it, I guess. When i browse I can't find "System Restore" anywhere on my system.
So...where I stand right now is, I am up and running (without having found System Restore as requested) but otherwise running perfectly. All apps work. Speed is good. Everything appears normal. I'm not going to shutdown the machine until I get a solution to the startup problem. I'm afraid that sooner or later nothing
will get me back up!
Can anyone help?