Results 1 to 11 of 11
  1. #1


    Member Since
    Sep 20, 2009
    Posts
    6
    Question Unable to boot OSX after Boot Camp partitioning
    Hi everyone,

    I am a new Macbook user and have run into a serious problem. I partitioned my harddive using Boot Camp and installed rEFIt to be able to dual boot between OS X and Ubuntu.

    I restarted my laptop to boot from the Ubuntu Live CD, and I got to the main menu but never further, since when I chose an option I would get an error message (not responding).

    When I then restarted to boot OS X the apple that appears during start up was replaced by a "stop sign" which I cannot get past. I tried to boot from the OS X Installation DVD, but this too leads to the stop sign.

    I do however get to the rEFIt menu before this happens, where I can reach a terminal window to enter commands.

    Does anyone have any advice as how to boot OS X, any commands or other solutions, or how to reinstall the OS?

    Any help is appreciated tremendously.

    Jimmy

  2. #2

    Sur3Mac's Avatar
    Member Since
    Aug 03, 2009
    Location
    The Netherlands
    Posts
    1,563
    Specs:
    Late 2011 MBP 13" i5/16GB RAM,Early 2007 MB white 13", 2x TV 3rd Gen, ᣦ
    Ubuntu uses Grub as it's bootloader, OSX uses Darwin.

    But Ubuntu, on setup wil not see the OSX Boot, so you'll have to manually enter it, and edit Grub.

    You'll have to boot back into Ubuntu, Open a terminal and type:

    sudo gedit /boot/grub/menu.lst

    This is the boot list for OS/Memtest etc.

    Scroll to the bottom of the grub menu and enter the following under where it says ### END DEBIAN AUTOMAGIC KERNELS LIST

    title MacOS X
    rootnoverify (hd0,*)
    makeactive
    chainloader +1

    Substitute the * for the partition number, in your case it maybe (hd0,1).

    The sudo command emulates root permissions, so you can log in as any user.

    If you're having trouble with this, it might be a good idea to just restore your OSX Partition from Time Machine, if of course you have it backed up.

    Hope this helps


    PS I only just read that you didn't actually install Ubuntu yet, in that case, do a back up restore

  3. #3

    Sur3Mac's Avatar
    Member Since
    Aug 03, 2009
    Location
    The Netherlands
    Posts
    1,563
    Specs:
    Late 2011 MBP 13" i5/16GB RAM,Early 2007 MB white 13", 2x TV 3rd Gen, ᣦ
    Try to do the hardware check by pressing 'D' upon restart, with the OSX dvd.

    If that doesn't work then there may be an issue with your Optical drive

  4. #4


    Member Since
    Sep 20, 2009
    Posts
    6
    Sur3Mac,

    Thank you for taking the time.

    When I pressed D during restart the OS X DVD appeared in the rEFIt menu. When I choose to boot from it, it starts to load like normal at first, but then the apple turns into a stop sign, and nothing more happens.

    I burnt the image for the Ubuntu live-CD just prior to this happening, so I would not think it's the optical drive that's causing it.

    Is there anything I can try from the shell that I can access from rEFIt?

    /Jimmy

  5. #5

    Sur3Mac's Avatar
    Member Since
    Aug 03, 2009
    Location
    The Netherlands
    Posts
    1,563
    Specs:
    Late 2011 MBP 13" i5/16GB RAM,Early 2007 MB white 13", 2x TV 3rd Gen, ᣦ
    Have you tried rebooting from the Ubuntu Live CD?

    And from there rename or remove the “efi” folder.

    For a 100% clean de-installation, also remove the folder “rEFItBlesser” inside “Library/StartupItems”.

    After doing that, you should be able to boot into OSX and re-bless the OSX Partition.

    Regards

  6. #6


    Member Since
    Sep 20, 2009
    Posts
    6
    Well, booting into it earlier was unsuccessful, but I could try it again. The only thing is, how do I eject the OS X DVD currently inserted?

  7. #7

    Sur3Mac's Avatar
    Member Since
    Aug 03, 2009
    Location
    The Netherlands
    Posts
    1,563
    Specs:
    Late 2011 MBP 13" i5/16GB RAM,Early 2007 MB white 13", 2x TV 3rd Gen, ᣦ
    Good one... you have your mouse button, there's the terminal command line, but I imagine they both give you no love, right?

  8. #8


    Member Since
    Sep 20, 2009
    Posts
    6
    Hehe, no...

    But, do you think the problem is related to the partitioning? I have read a few other posts about this "stop sign" on other forums, but have not been able to make any sense of it what's causing it.

    I feel there must be some way of getting in...

  9. #9

    Sur3Mac's Avatar
    Member Since
    Aug 03, 2009
    Location
    The Netherlands
    Posts
    1,563
    Specs:
    Late 2011 MBP 13" i5/16GB RAM,Early 2007 MB white 13", 2x TV 3rd Gen, ᣦ
    Yeah... the install DVD, but that doesn't work either.

    I'm afraid you're going to have to be patient, until someone comes along that has a working solution.

    There are many, many members that have lots more knowledge of these things than I have.

    I'm out of options here, sorry M8

  10. #10


    Member Since
    Sep 20, 2009
    Posts
    6
    Thanks anyway!

    I will wait and see if someone comes along.

  11. #11


    Member Since
    Sep 20, 2009
    Posts
    6
    Anyone that has knowledge about the occurence of the mysterious stop sign?

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Similar Threads

  1. Boot Camp - partitioning
    By AlteMann in forum OS X - Operating System
    Replies: 1
    Last Post: 02-08-2013, 01:33 AM
  2. Help with Boot Camp and Partitioning
    By RageBiker in forum Apple Notebooks
    Replies: 4
    Last Post: 03-06-2010, 10:34 AM
  3. Boot Camp and Partitioning problem
    By Sasha Fierce in forum OS X - Operating System
    Replies: 2
    Last Post: 11-10-2009, 11:13 AM
  4. Boot Camp partitioning snafu
    By jalfp in forum Running Windows (or anything else) on your Mac
    Replies: 0
    Last Post: 06-27-2008, 09:39 AM
  5. Boot Camp Partitioning Issue
    By tanth in forum Running Windows (or anything else) on your Mac
    Replies: 6
    Last Post: 02-19-2008, 03:29 PM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •