Reinstalling mac os x lion disk is locked

This article offers you a short review of Mac recovery HD and teaches you to unlock it on your OS X Lion in a fast, safe, and efficient way.

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By definition, the recovery HD is a partition of the hard drive on disk of a Mac device. All operational systems, starting with OS X Lion and further have the recovery feature available. The Recovery component appears to be really important as it may help a user to reinstall the OS, repair the hard drive or restore the OS after a backup. The recovery mode on Mac shows a desktop with the menu bar of an OS X, as well as the window of OS X utilities where you can find such options as reinstalling the OS, repairing the HD or restoring the operating system after a backup , as mentioned above.

DeltaMac said:. What happens when you try the partition?

HELP!!!!! Stuck in Disk Utility, No OS, Hardrive locked.

Please give more details than just " It won't even let me get another partition. It won't let me click on it. Did I miss something? Boot to your Lion Recovery partition. Open Disk Utility 3. Name your partition, if you like and, finally, 5. Click the Apply button. That should do it. If not, tell me which step stops you. Number 4 stops me. It still won't let me click on the partition drop down. You have a failing hard drive, or the partition map is simply really messed up.

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If you didn't do anything that you are aware of, to 'lock' your drive, then maybe the hard drive is coincidentally close to failure. When booted to your installer DVD, you'll likely still need to re-partition the hard drive.

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  5. It doesn't mount on the desktop, and Disk Utility keeps it hidden unless you use the debug menu to make hidden volumes visible. To make use of the Recovery HD volume, you must restart your Mac and select the Recovery HD as the startup device, using one of the following two methods.

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    You can also restart your Mac to the startup manager. This is the same method used to boot into Windows Bootcamp or other OSes you may have installed on your Mac.

    What is the recovery HD and features does it have?

    There is no advantage to using this method; we included it for those of you who are used to using the startup manager. Now that your Mac has booted from the Recovery HD volume, you're ready to perform one or more tasks on the startup device that you were unable to perform when actively booted from the startup volume.

    Using Disk Utility to unlock or decrypt your FileVault 2-encrypted boot drive

    To help you, we've included appropriate guides for each of the common tasks for which Recovery HD is used. Restoring your Mac from a Time Machine backup will cause all data on the selected destination drive to be erased. The Recovery HD volume can be a lifesaver, at least when it comes to troubleshooting and repairing problems with a Mac.

    Be Safe, Not Sorry: Learn about Recovery HD on Mac OS X Lion | MacProCleaner

    But the Recovery HD volume is only created on your Mac's internal startup drive. If anything should go wrong with that drive, you could find yourself in a pickle. Share Pin Email. Tom Nelson has written hundreds of articles, tutorials, and reviews for Other World Computing and About. He is the president of Coyote Moon, Inc.

    Disk Utility — for repairing damaged drives and system files. Safari — to allow you to go online and research any problems you may be having. Restore From Time Machine Backup — for those times when everything has gone wrong and you need to restore data from your backups. Firmware Password Utility — to set up or remove firmware passwords, one of the security options for OS X.