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Lion Recovery Disk Assistant Error On Launch

Just downloaded the Lion Recovery Disk Assistant, and upon launch, I get the error:


"The Recovery HD on this computer is damaged or not present. Recovery Disk Assistant requires a functioning Lion Recovery HD to create an external Lion Recovery."


This is a Lion install from the App Store -- no mods. What now???

3.2GHz 8-Core Mac Pro, Mac OS X (10.6.6), 16GB RAM, 4TB Storage

Posted on Aug 8, 2011 5:44 PM

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32 replies

Aug 9, 2011 8:59 PM in response to jconnolly

You can still get that file by re-downloading the OS X Lion Application from the App Store. Here's how....


  1. Use the machine OS X Lion is installed on.
  2. Open App Store. Sign in.
  3. Press and hold your OPTION key; then click on Purchases at the top of the App Store screen.
  4. Under your purchase, look to the right of 'OS X Lion'. If Step 3 worked, the button on the right should say Install let you click it.
  5. Click Install. Let the download finish.
  6. When you see the window open for installing the download DON'T INSTALL. Open FINDER, navigate to Applications and you should see the OS X Lion Installation App.
  7. Right click on the OS X Lion Installation App and select Show Package Contents.
  8. Navigate to the SharedSupport folder. You should see a filename of InstallESD.dmg.
  9. Copy the InstallESD.dmg to your desktop
  10. Close the window that's waiting for you to install OS X Lion. It's not needed anymore.
  11. Launch Disk Utility and click the Burn button
  12. Select the InstallESD.dmg file from your desktop as the image to burn. Insert a blank DVD and wait for the the image to be burned.

Aug 20, 2011 11:54 AM in response to sayimz

My apologies, I'm dense this morning. If one installs Lion using a re-download from the App Store, DVD or USB thumb drive, one will have both the Lion OS and its Recovery HD. If one erases/reformats their hard drive and restores Lion from a Time Machine backup, the Recovery HD may not be there. I still may not be understanding your question.

Aug 20, 2011 12:04 PM in response to keg55

Im sorry man> im kynda in a frustated situation. May be i dont get to what to be done to fix this issue. I want to create a lion recovery usb with recovery assistant but i get this message which goes sumthin like this...The Recovery HD on this computer is damaged or not present. Recovery Disk Assistant requires a functioning Lion Recovery HD to create an external Lion Recovery. What steps shall i take to fix this?? please walk me through..

Aug 20, 2011 12:33 PM in response to sayimz

Ah ok.... just reinstall Lion on top of itself. It will recreate the Recovery HD.


Do a backup before the next paragraph just to be on the safe side.


Since you have a Lion install DVD, just boot from that by inserting the DVD, restart and press C when you hear the startup chime. The system will boot from the DVD. Then all you do is run the install again. No harm will come to your data or installed apps. After the reinstall is completed, you can check to see if you are able to get into the Recovery HD by restarting and pressing COMMAND - R when you hear the startup chime. If you boot into the Recovery HD, you're good to go with rerunning the Lion Recovery HD Assistant to create your USB thumb drive. If you can't, I'm not sure what you can do other than wiping your drive and starting over. OR find a friend with Lion and create your USB thumb drive that way.

Dec 28, 2011 8:09 PM in response to leroydouglas

I am trying this now . . . am signed into the App Store on my mini, hold option and click on purchases, and it just shows me apps, but not lion, and the buttons either say "installed" and are greyed out, or "update". What can I do? I do not have the Recovery HD partition and need to create some kind of back up media. Computer came with Lion already installed, so I don't have a DVD . . . this is terrible.

Jan 30, 2012 6:55 AM in response to mkihr

I was able to make the recovery drive, but only by using disk utility. First set the debug flag so you can see the debug menu in disk utilities ... You can find how to do that in one of the threads that discusses this problem. Once you have that you can go to the debug menu and choose show all partitions. My recovery partition then showed up. I was then able to use restore in disk utilities to copy that partition to my thumb drive. I successfully booted from the thumb drive into the recovery console after that. Note that you can mount the recovery partition in disk utilities but to do the restore it cannot be mounted.

Lion Recovery Disk Assistant Error On Launch

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