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Thread: iMac won't boot after upgrade / kernal install

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  1. #1
    Join Date
    Aug 2006
    Beans
    142
    Distro
    Ubuntu 12.10 Quantal Quetzal

    iMac won't boot after upgrade / kernal install

    Strange problem. Ubuntu works fine on my iMac if I choose previous kernals and use kernal 2.6.....25. (Don't know exact string).

    The newest kernal that was installed after my upgrade was 2.6.....32. I try booting into that kernal and it just goes to black screen after about 20 seconds. About 50% of the time I get a boot loader, and then black. Other times I get black instantly after grub.

    Any thoughts?

    I have a Intel Core i3 3.07 GHZ Imac 27 inch. 32 bit Ubuntu.

  2. #2
    Join Date
    May 2008
    Beans
    69

    Re: iMac won't boot after upgrade / kernal install

    Hi,

    Try editing the kernel command line for 2.6.32 in grub and add nomodeset

  3. #3
    Join Date
    Aug 2006
    Beans
    142
    Distro
    Ubuntu 12.10 Quantal Quetzal

    Re: iMac won't boot after upgrade / kernal install

    Quote Originally Posted by windscape View Post
    Hi,

    Try editing the kernel command line for 2.6.32 in grub and add nomodeset
    Added. I get to the bootscreen and it acts like it's loading and get all the way through and then freezes on a loading boot splash screen.

    Still only can boot in kernel 2.6.25.

  4. #4
    Join Date
    May 2008
    Beans
    69

    Re: iMac won't boot after upgrade / kernal install

    Hi,

    Try removing quiet and splash from the kernel command line.

  5. #5
    Join Date
    Aug 2006
    Beans
    142
    Distro
    Ubuntu 12.10 Quantal Quetzal

    Re: iMac won't boot after upgrade / kernal install

    Quote Originally Posted by windscape View Post
    Hi,

    Try removing quiet and splash from the kernel command line.
    Added. It no longer has the splash screen but it still fails. It goes through lines of code and then quits.

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