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Thread: [SOLVED] cant boot ubuntu/windows after installing 8.10

  1. #1
    Join Date
    Dec 2008
    Beans
    4

    [SOLVED] cant boot ubuntu/windows after installing 8.10

    Tried installing ubuntu today, had a host of problems, here's what I did step by step and the resulting problems.

    downloaded and setup refit
    disk utility wasn't working to repartition, so used gparted off ubuntu cd to repartition my OS X partition, leaving ubuntu about 30 gigs to install to.

    Formatted empty 30 gigs as ext3 and installed ubuntu onto it.
    rebooted, windows no longer in refit list
    attempted to boot ubuntu, got a black screen with a flashing _.

    synced partition tables with refit as suggested in FAQ, now it just hangs at the picture of tux when i try and boot ubuntu from refit

    Still unable to boot windows, windows partition labelled as disk0s3 in disk utility, verify and repair both unsuccessful, can't even access files.

    os x still boots fine.

    any suggestions to get windows and ubuntu working?

    its windows vista ultimate and a 2007 aluminum imac if that helps.

  2. #2
    Join Date
    Jun 2008
    Beans
    53
    Distro
    Ubuntu 8.04 Hardy Heron

    Re: cant boot ubuntu/windows after installing 8.10

    is refit a boot manager like lilo or grub?
    Do I have to use a mouse?

  3. #3
    Join Date
    Jun 2008
    Beans
    53
    Distro
    Ubuntu 8.04 Hardy Heron

    Re: cant boot ubuntu/windows after installing 8.10

    i think you need to install grub onto your linux partition.
    Do I have to use a mouse?

  4. #4
    Join Date
    Dec 2008
    Beans
    4

    Re: cant boot ubuntu/windows after installing 8.10

    Installed grub with a livecd, ubuntu boots up fine now, and I can see my vista install in the grub menu, but when I select it the screen flashes for a second then goes back to the grub menu, any more ideas?

  5. #5
    Join Date
    Jul 2008
    Beans
    871
    Distro
    Ubuntu 8.10 Intrepid Ibex

    Re: cant boot ubuntu/windows after installing 8.10

    Could you post the contents of your menu.lst, specifically the end portion that lists all of OS's that can load. You can get to it by:

    Code:
    gksudo gedit /boot/grub/menu.lst
    Then just copy the bottom portion here.
    Any piece of knowledge I acquire today has a value at this moment exactly proportioned to my skill to deal with it. Tomorrow, when I know more, I recall that piece of knowledge and use it better.
    -Mark Van Doren

  6. #6
    Join Date
    Dec 2008
    Beans
    4

    Re: cant boot ubuntu/windows after installing 8.10

    Code:
    title		Ubuntu 8.10, kernel 2.6.27-7-generic
    uuid		7506b095-6a61-462a-8cd6-a439376debc2
    kernel		/boot/vmlinuz-2.6.27-7-generic root=UUID=7506b095-6a61-462a-8cd6-a439376debc2 ro quiet splash 
    initrd		/boot/initrd.img-2.6.27-7-generic
    quiet
    
    title		Ubuntu 8.10, kernel 2.6.27-7-generic (recovery mode)
    uuid		7506b095-6a61-462a-8cd6-a439376debc2
    kernel		/boot/vmlinuz-2.6.27-7-generic root=UUID=7506b095-6a61-462a-8cd6-a439376debc2 ro  single
    initrd		/boot/initrd.img-2.6.27-7-generic
    
    title		Ubuntu 8.10, memtest86+
    uuid		7506b095-6a61-462a-8cd6-a439376debc2
    kernel		/boot/memtest86+.bin
    quiet
    
    ### END DEBIAN AUTOMAGIC KERNELS LIST
    
    # This is a divider, added to separate the menu items below from the Debian
    # ones.
    title		Other operating systems:
    root
    
    
    # This entry automatically added by the Debian installer for a non-linux OS
    # on /dev/sda3
    title		Windows Vista/Longhorn (loader)
    root		(hd0,2)
    savedefault
    chainloader	+1
    edit: just guessing, but will adding makeactive after savedefault fix it? been a while since i've had to mess with grub
    edit again: guess not, did nothing :/
    Last edited by captainkz; December 5th, 2008 at 02:31 AM. Reason: additional information

  7. #7
    Join Date
    Jul 2008
    Beans
    871
    Distro
    Ubuntu 8.10 Intrepid Ibex

    Re: cant boot ubuntu/windows after installing 8.10

    Based on how the GRUB just loops back to the menu when you select Windows, I wondering if you didn't overwrite the Windows boot section sometime with all that moving around that you did. To fix this, I think you'll need to restore the Windows boot loader with a windows cd, then re-install the GRUB again. There may be a quicker way that I'm unaware of, but that should fix it.

    Another option is to check out the Super Grub Disk and use it to repair things. www.supergrubdisk.org
    Any piece of knowledge I acquire today has a value at this moment exactly proportioned to my skill to deal with it. Tomorrow, when I know more, I recall that piece of knowledge and use it better.
    -Mark Van Doren

  8. #8
    Join Date
    Dec 2008
    Beans
    4

    Smile Re: cant boot ubuntu/windows after installing 8.10

    got it working, had to repair winload.exe after i got windows booting again, which then broke grub, so i reinstalled grub again.

    mini guide to fix this issue

    Fixing ubuntu boot:
    boot a livecd, install grub
    this will make ubuntu bootable again, there may be specific steps needed, see grub install guides for help there

    boot vista cd, run repair, open command prompt, do bootrec /FixMbr
    this should make vista bootable
    you may get an error about winload.exe being corrupted, boot off the windows cd and go to repair again, use the automated repair and this will restore any corrupt files

    you'll probably have to install grub again, just do it same as before.

    you should now have a working triple boot system

    thanks to everyone who helped me out with this.

  9. #9
    Join Date
    Jul 2008
    Beans
    871
    Distro
    Ubuntu 8.10 Intrepid Ibex

    Re: cant boot ubuntu/windows after installing 8.10

    Glad you got it fixed.
    Any piece of knowledge I acquire today has a value at this moment exactly proportioned to my skill to deal with it. Tomorrow, when I know more, I recall that piece of knowledge and use it better.
    -Mark Van Doren

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