Previous 1 2 3 Next 35 Replies Latest reply: Sep 25, 2012 6:30 PM by Skypainter
Skypainter Level 1 (0 points)

Had an OS update today, from OS X Lion to ver 10.7.5 which needed to restart to install.  My computer will not restart.  Have MacPro.

  • Grant Bennet-Alder Level 9 (56,674 points)

    Hold Command-R at Startup or Option at Startup and choose Recovery_HD.

    Answer only the "what Language" question and do not Install.

    Choose Disk Utility, select your Boot Drive and ( Repair Disk ).

  • Skypainter Level 1 (0 points)

    Thank you Grant, didn't work...getting only a blank screen still.  Have a RAID card, could this be an issue?

  • Sway CPT Level 1 (10 points)

    I am having what I assume is a similar issue, just updated to 10.7.5 and now boot directly into a kernel panic. Flushing PRAM has no effect. Stumped.

  • aviationwiz Level 1 (0 points)

    Same problem here - 2007 Mac Pro update to 10.7.5, computer boots with blurry lines on the screen, and in to a kernel panic. Can not boot from a Lion 10.7.4 DVD or flash drive, even with my SSD (with Mac OS on it) unplugged from the system.

     

    Tried flushing the PRAM to no effect. Also can't boot from the Recovery partition.

  • Tuckers2 Level 1 (0 points)

    Me too. SAme issue with Mac Pro & Lion. Upgrade seemed to work but will not restart.

     

     

    Help

     

    Regards

     

    T

  • Tuckers2 Level 1 (0 points)

    Ok so here's what happened. My machine has 8GB Ram. We tested the Ram and moved it between the cards & slots in the Mac in various combinations. As far as we can tell Ram is fine. We removed two sticks of Ram and now the machine runs with 6Gb Ram... At a loss to explain why but the machine is now running again and seems normal if a little slower. Will continue to run with 6 and see what happens.

     

     

    Regards

     

    T

  • ITPirate Level 1 (0 points)

    I am having hte exact same problem with my Mac Pro 2007 when upgrading to 10.7.5

  • FatMac>MacPro Level 5 (4,420 points)

    ITPirate wrote:

     

    I am having hte exact same problem with my Mac Pro 2007 when upgrading to 10.7.5

    A general question since I did the upgrade both on an actual Lion installation and a virtual machine and both worked: how was the upgrade done? Using Software Update, a downloaded Delta updater or the Combo Updater? In both instances I used the downloaded Combo Updater without any problem.

  • Grant Bennet-Alder Level 9 (56,674 points)

    Skypainter-

     

    Were you able to boot into Recovery_HD?

    Were you able to run Disk Utility?

    Were you able to (Repair Disk) ??

  • Grant Bennet-Alder Level 9 (56,674 points)

    If you can get it working, perhaps in Safe Mode, can you please post the kernel panic log?

     

    Mac OS X: How to log a kernel panic

  • Grant Bennet-Alder Level 9 (56,674 points)

    aviationwiz-

     

    " A Mac that cannot boot to an appropriate Installer DVD has a Hardware problem."

  • Grant Bennet-Alder Level 9 (56,674 points)

    can you do the procedure I suggested above? 

     

     

    Hold Command-R at Startup or Option at Startup and choose Recovery_HD.

    Answer only the "what Language" question and do not Install.

    Choose Disk Utility, select your Boot Drive and ( Repair Disk ).

     

  • Skypainter Level 1 (0 points)

    Was not able to get beyond the blank white screen last night.  Set an appt. with local Apple store Saturday, but will try changing the RAM, too. Had a bad RAID card when the machine was pretty new. I suspect the OS just can't talk to the RAID.  I will post any logs should I get it going before Apple gets back.  Willing to try other directions, too. Not that is good others are having issues, but it may get Apple's attention.  After all, this was their update! :-)

  • aviationwiz Level 1 (0 points)

    FatMac\>MacPro wrote:

     

    A general question since I did the upgrade both on an actual Lion installation and a virtual machine and both worked: how was the upgrade done? Using Software Update, a downloaded Delta updater or the Combo Updater? In both instances I used the downloaded Combo Updater without any problem.

     

    I updated my computer using Software Update

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