Boomer73
Level 1 (0 points)

Q: I have tried to upgrade my iMac 21.5" mid-2010 to El Capitan. It is now "hung" at 27 minutes remaining on the installation. It never completes, it just gives off an alarm beep and restarts. What can I do?

I tried upgrading from Mavericks to El Capitan. The download installed, but set off an alarm beep and restart every 15 minutes. After disabling everything I could think of that might cause this symptom, I tried to re-install El Capitan by downloading (successful) and installing the new download. My system is now hung in the installation "Installing: About 27 minutes remaining." I can't abort the installation. I'm still getting alarm beeps and restarts, but can't find any way to escape this loop. Need help for my iMac boat anchor.

iMac 21.5" mid-2010, OS X El Capitan (10.11.3)

Posted on Feb 29, 2016 8:37 AM

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Boomer73

Q: I have tried to upgrade my iMac 21.5" mid-2010 to El Capitan. It is now "hung" at 27 minutes remaining on the installation. It nev ... more

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  • by JimmyCMPIT,

    JimmyCMPIT JimmyCMPIT Mar 3, 2016 10:27 AM in response to Boomer73
    Level 5 (7,766 points)
    Mac OS X
    Mar 3, 2016 10:27 AM in response to Boomer73

    The mouse-button method to ejectis from Apple and should function under normal conditions.

    Startup key combinations for Mac - Apple Support

     

    if you have any 3rd party device or and USB device other than the original mouse and keyboard (see my note about the RAM in this post) I suggest removing them and trying to reinstall. If this continues the fail I'd be pointing to the HD as the most likely culprit, and far less expensive to replace if it's a logic board.

     

    the 2002F error btw is telling you the Mac can not reach an Apple server, possibly there is an issue with wireless but this should not be happening if you use the installer CD. If you have a router move connect with an ethernet cable at the time of the install.

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