So some time ago i used boot camp to install Windows 8 pro. Now i want to switch back to my mac/osx but there is no osx partition

Screenshot of boot camp on windows: (Ingore the langauge, it's in Danish)

enter image description here

I have searched around for an answer but i can't find one.

Thanks for reading

Note 1 I have tried ALT at the start-up of the computer but there is now OSX disc. Only a windows one. And i have tried to reinstall OSX on one of the discs, but i gives me a error (Can't remember the error, but i couldn't delete the disc either)

  • like aaronk6 mentioned please boot into the recovery mode with alt-r, start Utilities/Terminal, enter "diskutil list" & "diskutil cs list" and add the outputs to your question
    – klanomath
    Dec 1, 2014 at 20:34
  • did you try the cmd-r boot to restore OS X ?
    – Ruskes
    Dec 1, 2014 at 20:46
  • @user3527883 sorry command-r and not alt-r
    – klanomath
    Dec 1, 2014 at 22:17

2 Answers 2


Try holding down the alt key while powering on your Mac. This should yield a boot device selection.

If this doesn’t help, try booting in Recovery Mode as outlined here: http://support.apple.com/en-us/HT4718 There you can run Disk Utility to check wether your partition is corrupted.


That's an old bug in the BootCamp prefs.

Just reboot and hold the alt key to get to the boot menu.

Then choose your Mac OS X partition to boot into Mac OS X.

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