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only boots in safe mode

1335 Views 8 Replies Latest reply: May 16, 2011 2:29 AM by Mark Burr RSS
Mark Burr Calculating status...
Currently Being Moderated
May 4, 2011 4:46 AM

Hi there,


Im currently sat in front of a Mac Pro 2 x2.66Ghz which crashed after coming out of sleep so it had to be powered down and then back on.


Since then it will not boot to the finder, just sits at a blu screen.


It will however boot ok in safe mode.


Created a new user and problem persists.


Run applejack, problem persists.


OK, lets do an archive and install. Plugged in my firewire drive with split partitions of 10.5/10.6 installers. Reboot, alt key, select my  boot drive and it still hangs before getting to the installer front end...


ok, lets boot again off a 10.6.6 boot hard disk. > same problem.


next i remove the internal hard disk and attempt to boot off the firewire external. Same problem....


OK, now I insert a USB stick with a 10.6 installer on it, still won't boot up completely.....


Now I try and boot from a 10.7 boot drive, get a desktop pattern but nothing else, just a spinning wheel.


Have now put the original hard disk back in and booted it back in safe mode to keep going for the time being...


Any suggestions please ???

Mac Pro, Mac OS X (10.5.8)
  • The hatter Level 9 Level 9 (58,575 points)
    Currently Being Moderated
    May 4, 2011 5:21 AM (in response to Mark Burr)

    First thing to do was run FSCK (is Applejack okay to use?)


    SuperDuper clone will NOT copy temp files and caches, things that a Safe Boot would delete and create, and let you try to repair on a new drive with Disk Warrior to repair drive which is your best best. Something else to look for corrupt files.


    Also, you should already have


    bootable backup clone or two

    emergency boot drive to use for repairs and maintenance to run Disk Utility AND 3rd party disk repair.


    I'd never do anything now other than clean install to another hard drive. You haven't repaired directory and other issues. Leave it as is and build a new OS boot drive foundation.

  • The hatter Level 9 Level 9 (58,575 points)
    Currently Being Moderated
    May 4, 2011 5:58 AM (in response to Mark Burr)

    I know and used AJ in the past to clean caches, but it only uses fsck and not what Disk Warrior would.


    Right, early AM and missed the rest.


    And this is began using developer release? don't answer but take it up with beta/seed forums. No idea what it might have done.


    I saw you wanted to add a new account BEFORE you had a stable system, then wanted to A&I (doesn't exist for 10.6, reinstalls only).


    In all such matters: a bootable SuperDuper clone and Disk Warrior  done regularly I see as MUST.

  • Linc Davis Level 10 Level 10 (107,830 points)
    Currently Being Moderated
    May 4, 2011 6:43 AM (in response to Mark Burr)

    We have no way of knowing what's on these volumes you're trying to boot from. Usually if a volume boots only in safe mode, it's because there are incompatible third-party drivers on it. The only way you can be sure is to boot from a retail 10.6 DVD and reinstall. I'm assuming that the machine shipped with 10.5.

  • Linc Davis Level 10 Level 10 (107,830 points)
    Currently Being Moderated
    May 4, 2011 9:43 AM (in response to Mark Burr)

    If you can't boot from a valid retail 10.6 installer volume, then there must be a hardware problem somewhere.


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