arjay0
Level 1 (0 points)

Q: El Capitan install issues

After installation of El Capitan on my mid 2007 IMac, my computer goes on and off repeatedly and will not start up. 

iMac (20-inch Mid 2007), OS X El Capitan (10.11)

Posted on Oct 7, 2015 5:28 AM

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arjay0

Q: El Capitan install issues

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  • by jason269,

    jason269 jason269 Oct 7, 2015 8:56 AM in response to arjay0
    Community Specialists
    Oct 7, 2015 8:56 AM in response to arjay0

    Hi, arjay0.  

     

    Thank you for visiting Apple Support Communities.  

     

    It sounds like your iMac will restart on its own after the upgrade to El Capitan.  Are you receiving any errors, could you provide me a little more details on the behavior and your system specifications?  In the interim, try going through some of the troubleshooting steps in the article below.  This may include trying to reinstall your operating system.  

     

    OS X: When your computer spontaneously restarts or displays "Your computer restarted because of a problem."

     

    Cheers

  • by Rugeleyrocketman,

    Rugeleyrocketman Rugeleyrocketman Oct 23, 2015 1:31 PM in response to jason269
    Level 1 (0 points)
    Oct 23, 2015 1:31 PM in response to jason269

    Hi

    I am having similar issues with my late 2007 Mac.  Downloaded El Capitan although it did show a message saying it couldn't download it was on the he hard rive so I installed. Got stuck and after an hour or so switched off.  Now every time I boot up it says it is installing and crashes (shuts down) at the same point before it completes.

     

    ny suggestions?

     

    thanks

  • by Norm61,

    Norm61 Norm61 Oct 23, 2015 1:50 PM in response to Rugeleyrocketman
    Level 1 (38 points)
    Mac OS X
    Oct 23, 2015 1:50 PM in response to Rugeleyrocketman

    I had the same issues.  If you are still under warranty, go to Apple.  Otherwise, Time Machine back to Yosemite and turn off auto updates in App Store.  I tried every suggestion found here in the forums without going into Terminal suggestions (hey, I know my limits and abilities...I don't mess with code).

     

    Apple really dropped the ball on this one.

     

    Best of luck!

  • by Rugeleyrocketman,

    Rugeleyrocketman Rugeleyrocketman Oct 23, 2015 2:48 PM in response to Norm61
    Level 1 (0 points)
    Oct 23, 2015 2:48 PM in response to Norm61

    Thanks

    trouble is I can't get past the install page before. It shuts down.  I too am no expert on this but always found the Mac easy to install/uninstall on.  Not sure what went wrong here,  I was going from Snow Leopard so may have been ambitious but did previously upgrade to Yosemite without any problems.  Yosemite was so slow I  reversed it by following advice from here (using code) and was rather pleased with myself.  I was hoping someone might be able to tell me how to override the shutdown.

     

    otherwise do you reckon the apple shop would look at it?

     

    thanks again

  • by Norm61,

    Norm61 Norm61 Oct 23, 2015 4:31 PM in response to Rugeleyrocketman
    Level 1 (38 points)
    Mac OS X
    Oct 23, 2015 4:31 PM in response to Rugeleyrocketman

    Hey Rugleyrocketman!

     

    Up until Yosemite it has been easy.  Yosemite was a bit wonky, though I persevered, got used to it and had my machine running the way I wanted it.  El Capitan.....what at cluster !@#%.

     

    The Apple shop may help if you are still under warranty, otherwise it will be a paid service visit...kinda pricy.  You are braver than I going the code route.  In any case, if you have an external drive and have Time Machine running then I would go back and restore to the point prior to installing El Capitan.  Then turn off auto updates in the App Store via System Preferences. 

     

    Another option, given that you jumped from Snow Leopard to Yosemite, maybe going back to Snow Leopard and then upgrade stage by stage (if you have the time and if they are still available somewhere in the Apple ether).  Snow Leopard > Lion > Mountain Lion > Mavericks and then finally Yosemite.  You may have missed code along the way during all of those OS upgrades.  osemite and do a staged upgrade.

     

    Best of luck!

  • by Rugeleyrocketman,

    Rugeleyrocketman Rugeleyrocketman Oct 24, 2015 8:32 AM in response to Norm61
    Level 1 (0 points)
    Oct 24, 2015 8:32 AM in response to Norm61

    Hi Norm!

     

    You won't believe it but I have cracked it!  Googled it and found the answer to booting in recovery mode.  Managed to finish the install properly over night and i now have El Capitan running OK on most things.  A couple of teething issues but doesn't look serious - compared to the blank screen i was getting anyway!

     

    It is pretty slow still, same as Yosemite was.  Just realised i only have 2Gb Ram though so am upgrading to 4 before doing anything else.

     

    Have to say these Macs are amazing - i am 18 months into my third top spec windows laptop from work and this old girl is still going strong - if a bit steadier than i would like.

     

    Thanks for your help