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When I boot, it waits, then I see gray Stop sign, then it boots

1381 Views 20 Replies Latest reply: Jul 10, 2012 6:04 AM by Grant Bennet-Alder RSS
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Michael Levin Level 2 Level 2 (175 points)
Currently Being Moderated
Jun 24, 2012 3:25 PM

I've got a Mac Pro running 10.6.8.  I have an SSD internal drive in there that is selected as my boot disk. I also have a clone of this (external USB) and an internal RAID1.  When I turn on the machine, the gray screen has the rotating circle of gray bars for a while (minutes), and then the gray stop sign (circle with a line through it) appears. After that, it boots from the SSD very quickly, as it should.  What I'd like to know is, what else can I do (other than selecting it as my boot drive in Preferences) to make it go to that right away instead of doing whatever it's doing that causes it to delay, then fail, and only then go to the correct disk. It's weird because these other drives are also bootable so if that's what it was trying, it should be coming up in the wrong system. But it's not. What is it doing, and how do I make it go to the SSD right away?

  • Grant Bennet-Alder Level 8 Level 8 (48,135 points)

    It's trying to boot something else and failing.

     

    DO set the Startup Disk in System Preferences. That info is kept in Parameter RAM, not on any drive.

     

    And once you get it working, use Disk Utility "Repair Disk" on each of those other drives.

    Mac Pro (Early 2009), Mac OS X (10.6.8), & Server, PPC, & AppleTalk Printers
  • Grant Bennet-Alder Level 8 Level 8 (48,135 points)

    This article:

     

    Mac OS X: Gray screen appears during startup

     

    Indicates reasons why you may have some difficulties in Starting up.

     

    You also could have damage to boot-up files, or a Hardware issue.

    Mac Pro (Early 2009), Mac OS X (10.6.8), & Server, PPC, & AppleTalk Printers
  • Grant Bennet-Alder Level 8 Level 8 (48,135 points)

    You could try booting in Verbose mode, or better yet use Console to read the log from a recent boot-up attempt -- it may have error messages that tell you exactly why you are getting unexpected results.

    Mac Pro (Early 2009), Mac OS X (10.6.8), & Server, PPC, & AppleTalk Printers
  • Grant Bennet-Alder Level 8 Level 8 (48,135 points)

    They are not usually actually over-written, but "rolled over" instead. Look in the same directories for numbered versions with similar names.

     

    Or start over with a new Restart -- after noting the exact time.

    Mac Pro (Early 2009), Mac OS X (10.6.8), & Server, PPC, & AppleTalk Printers
  • Grant Bennet-Alder Level 8 Level 8 (48,135 points)

    1) Start up in Safe Mode (hold the shift key at Startup).

     

    This does one pass of Disk Utility "Repair Disk" and loads a minimal set of extensions, the puts up the login screen (so you need to know your username and password).

     

    2) Use Disk Utility to "Repair Permissions". This is an unusual step, but some of the errors you posted indicate that there are problems in some System Directories.

     

    3) While you are up, "Repair Disk" on your non-boot drive, just in case.

    Mac Pro (Early 2009), Mac OS X (10.6.8), & Server, PPC, & AppleTalk Printers
  • Grant Bennet-Alder Level 8 Level 8 (48,135 points)

    Some of your logs seem to be going to the SSD drive clone, rather than the SSD Drive. You may want to pull the clone for further tests.

     

    /private/var/folders/pe may have bad permissions, as several things are failing to create files there.

    Mac Pro (Early 2009), Mac OS X (10.6.8), & Server, PPC, & AppleTalk Printers
  • Grant Bennet-Alder Level 8 Level 8 (48,135 points)

    I was not suggesting you TEST the clone, but rather pull it out and see if the logs go to their natural place on the boot drive. Another idea would be to do a PRAM Reset:

     

    Hold down the following keys at startup--

    Command-Option-P-R

     

    and continue to hold until you have heard the startup chime three or four times.

     

    ---

     

    As for the pe folder:

    Mac Pro (Early 2009), Mac OS X (10.6.8), & Server, PPC, & AppleTalk Printers
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