how to secure recovery partition mac os x

On some older Mac’s, Internet recovery is done with key combo shift + option + command ⌘ + r. The exception are the Macs that originally shipped with a recovery DVD prior to Lion, or earlier Macs that lack the firmware update to boot into Internet Recovery. This means if you re-install Mac OS Lion 10.7 on a Mac that shipped with 10.7 and decide to upgrade to High Sierra, you will still have the Lion 10.7 Internet Recovery image. This is behavior controlled by the Apple servers and you will not be able to change the Internet recovery re-install image unless Apple decides too. This boots to Internet Recovery mode and will only grab the version of Mac OS X that originally shipped with the Mac. Option + Command ⌘ + R (Internet Recovery): Is created by default when you install Mac OS X for the first time. This will attempt to boot from a recovery partition on your hard drive. For example, the 10.7 recovery partition does not include the same Terminal bash commands as High Sierra, such as csrutil.

This can be frustrating in certain circumstances. Mac OS does not automatically update the recovery partition on Apple computers when you update the OS or re-install a new copy of the OS. In this guide, we will update a Mac’s old recovery partition (10.7 Lion or younger) to Mac OS High Sierra 10.13.5. These steps will fail and you will receive the following message:Įrror (async): The given disk has a storage system (such as AppleRAID) which is not supported for this operation (-69718) Note: You will not be able to install a recovery partition on an Apple RAID drive. After the script completes, you will have a recovery partition created.

How to secure recovery partition mac os x