![]() Even if you created a separate empty partition via Disk Utility, prior to running Disk Assistant, it wouldn’t help-as the utility requires an existing Recovery HD in order to work.Īs another alternative, reinstalling Lion by running the Install OS X Lion utility may re-add the Recovery HD partition (I have not yet confirmed this). Can you add a Recovery HD partition at this point without having to start over? It would be nice, for example, if the Recovery Disk Assistant software could be used to create a Recovery HD partition on your startup drive, leaving the remainder of the drive intact. What if you forget the reinstall Lion step during the restore process? You now have a drive with Lion installed (via your backup) but no Recovery HD partition. The reinstall creates the Recovery HD partition. This means that a Lion restore requires an extra step: Reformat, reinstall Lion, and restore. Restoring from a mirrored backup does not reinstall the Recovery HD partition. However, with Lion, a reformat typically means that you erase the Recovery HD partition. ![]() Pre-Lion, all you would need to do is reformat and restore. Further, suppose you decide that you need to reformat/repartition your internal drive before restoring from that backup. The other alternatives here are to use either of the Internet-free methods covered in the previous section. If the system was upgraded from Mac OS X v10.6 Snow Leopard to Lion, the external recovery drive can be used with other systems that were upgraded from Snow Leopard to Lion.” Once again, the 2011 Macs that ship with Lion represent a special case.Īpple states: “If the computer shipped with Lion, the external recovery drive (created by Disk Assistant) can only be used with the system that created it. Creating a Recovery HD partition via Disk Assistant may also fail if you have FileVault enabled at the time. ![]() Make sure you create this external drive before disaster strikes, as Disk Assistant requires access to a functional Lion drive with a Recovery HD partition. After booting from Recovery HD on this external drive, you can repair, erase, repartition, and/or reinstall Mac OS X on your internal drive. Use it to set up a flash drive (or other USB drive) with a Recovery HD partition on it. One way to accomplish this is via Apple’s
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