9 Replies Latest reply: Apr 7, 2012 3:04 AM by Jolan84
Jolan84 Level 1 Level 1 (0 points)

I've been using a 27" iMac since Octobre 2011 with a Lion/Windows 7 dual boot. It's always worked great, until yesterday: I couldn't boot into Windows 7 anymore, it wouldn't move past the drive selection screen that you get when you hold Option during startup. Lion worked fine, though, so I made an image of the Boot Camp drive, reformatted the partition and put the image back. This did not seem to solve it, so I decided to try a fresh Windows install. I let the Boot Camp-helper app create a disk with the needed drivers and partition the hard disk drive, but when rebooting I got stuck on a grey screen again. I managed to get the Windows 7 install disk out again by holding the mouse button at start-up, but now I can't boot into either Windows 7 or Lion. And to add another layer of tragedy: my Time Machine drive died last week and my replacement is still in the mail, so I have no recent TM backup.

 

What can I try to fix this?


iMac (27-inch Mid 2011), Mac OS X (10.7.3)
  • 1. Re: My iMac won't boot anymore
    Mike Sombrio Level 6 Level 6 (9,555 points)

    Try booting whole holding command R. If your computer has a Lion recovery disk set up you'll be able to use Disk Utility to repair your drive. While you're in DU check the smart status of your drive.

  • 2. Re: My iMac won't boot anymore
    Jolan84 Level 1 Level 1 (0 points)

    I've managed to boot into Lion again and to make a TM backup on an old drive, so I'm a bit safer now. After that, I tried re-partitioning the drive with boot camp manager, but I got stuck at the grey screen again. Then I went into the recovery utility as you said and checked both partitions, and they didn't return any errors. When I try to boot from the Win7 install disk (by holding C during boot), it still hangs on the grey screen. I can't re-install Win7 at all.

     

    I'm completely flabbergasted as to what is going on here.

  • 3. Re: My iMac won't boot anymore
    Jolan84 Level 1 Level 1 (0 points)

    Since I can't edit my post anymore: when I partition the drive and select the Win7 install disk on the Startup Manager screen, it again freezes right there on the screen. And still no clue as to what is really wrong.

  • 4. Re: My iMac won't boot anymore
    Mike Sombrio Level 6 Level 6 (9,555 points)

    Possibly something wrong with the Win 7 disc? Does your superdrive read other discs ok?

  • 5. Re: My iMac won't boot anymore
    Mike Sombrio Level 6 Level 6 (9,555 points)

    I don't use bootcamp, but have you followed the step by step instructions for installing win 7 in Lion? I think when you make the partition you're supposed to insert the win disc and select install, I don't see where you need to restart holding the C key...I think that's a mac thing. I don't mean to insult but maybe you could take a look at this and get it figured out.

    http://manuals.info.apple.com/en_US/boot_camp_install-setup_10.7.pdf

  • 6. Re: My iMac won't boot anymore
    Jolan84 Level 1 Level 1 (0 points)

    The superdrive works fine as far as I can tell, I'll test it out some more in the morning. And I know how to install Windows on a Mac, I've done it plenty of times before. The weird stuff I'm trying (like holding various keys during boot) is because the usual method (boot camp assistant -> partition -> insert disk -> computer reboots and starts the Windows installer) isn't working, but freezing the boot process shortly after the chime.

  • 7. Re: My iMac won't boot anymore
    Mike Sombrio Level 6 Level 6 (9,555 points)

    Gotcha. Like I said, I didn't intend to insult.

  • 8. Re: My iMac won't boot anymore
    Mike Sombrio Level 6 Level 6 (9,555 points)

    Here's a thought......try holding option with the win disc inserted to see if you get the boot screen where you can choose which disc to start from.

  • 9. Re: My iMac won't boot anymore
    Jolan84 Level 1 Level 1 (0 points)

    Sorry if I sounded snippy, I'm just really getting tired of this, and I don't want to send it into the store yet because then I can't work anymore.

     

    Superdrive seems to work fine, according to the handful of other discs that I tried. I'm going to check if I can make a copy of my Win7 disc, just in case it's something with the disc itself (but that still wouldn't explain why I can't get past the grey boot screen).

     

    Oh, and I tried manually selecting the install disc but nothing, it just freezes up again.