This lands you at the fdisk command line - the parts in bold are what you type. If you want to completely remove any trace of Boot Camp (no OSes other than Mac OS X) you can completely destroy the MBR partition table and replace it with a so-called 'protective MBR': fdisk -e /dev/disk0 Option 1: Remove all trace of bootcamp (only boot OSX on this disk) Make sure to substitute the index of the partition to delete (IN THE GPT) instead of '4' and the exact disk you're partitioning instead of 'disk0'!įinally, you'll need to delete the same partition from the MBR (you may need to unmount again at this point). Then comes the dangerous bit ( make sure you have backups): Delete the partition using the gpt utility: gpt remove -i 4 disk0 Unmount all mounted partitions on the disk you want to partition, e.g. If confused, post the output from the above 2 here, and don't proceed. Note the number ( index) of the partition you want to delete in both the GPT and the MBR. Make sure this is the disk you want to change (might be disk1, disk2, etc).

This shows the MBR version (which Windows uses): fdisk /dev/disk0 The above shows the GPT version (which OSX uses). This happens if you try to partition your Mac disk from Windows. What has likely happened is that the two partition tables, the GPT and the MBR, have gone out of sync. If both versions of diskutil fail here too, stay in the installation media's terminal and get the raw partition table using: gpt -r show disk0 Have you tried booting from OSX installation media? Those have both a Terminal (with diskutil) and the GUI Disk Utility, which might start working as you're no longer trying to partition the drive you're booting from.Ĭaution, from now on: here be dragons! Make sure you understand what's going on before you start on this, you can't back out halfway! Check your backups are readable!

Removing a partition mac