Tag Archives: Apple_Boot

Hide Mac OS X Recovery partition

Sometimes the Mac OS X Recovery partition can be seen because it’s mounted automatically on boot. This is usually caused because you moved the operating system to another disk (clone) or because you used an app that changed the disks partitions (rEFInd in my case).

Recovery HD

To fix this you can run this script:


PARTITION=`mount | grep "Recovery HD" | awk '{print $1}'`
if [ -n "$PARTITION" ]; then
    sudo diskutil unmount $PARTITION
    sudo asr adjust --target $PARTITION -settype Apple_Boot

Then SHUTDOWN (don’t just reboot) and turn on the computer.

You can also unmount that partition from the Disk Utility if you enable the debug option from the command line, but this will only work one time as it will be mounted again on next boot:

$ defaults write com.apple.DiskUtility DUDebugMenuEnabled 1


Ref: http://automatica.com.au/2013/11/hide-recovery-hd-after-cloning-an-os-x-installation/