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Delete Macintosh HD but keep Recovery HD

3223 Views 36 Replies Latest reply: Aug 21, 2011 10:28 AM by Chris Hayden RSS
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saiboter Calculating status...
Currently Being Moderated
Aug 20, 2011 12:42 AM

Hello!

 

I just installed a (**** fast) SSD as second drive to my Mac Mini 2011. I used Super Duper to restore the Macintosh HD to the SSD wich worked great. Now I boot and work from the SSD.

 

Since I read when I use the mac disk tool and format the Macintosh HD the Recovery HD is also lost.

 

Can you tell me how I can delete the Macintosh HD but keeping the Recovery HD? Maybe its just opening the finder select als folders on Macintosh HD and delete?

 

Greetings

Tobias

Mac mini, Mac OS X (10.7)
  • Denisimo Level 1 Level 1 (110 points)
    Currently Being Moderated
    Aug 20, 2011 1:43 AM (in response to saiboter)

    Have you read this!

     

    http://support.apple.com/kb/dl1433

     

    Hope it helps

  • Chris Hayden Calculating status...
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    Aug 20, 2011 2:04 AM (in response to saiboter)

    saiboter wrote:

     

    Hello!

     

    I just installed a (**** fast) SSD as second drive to my Mac Mini 2011. I used Super Duper to restore the Macintosh HD to the SSD wich worked great. Now I boot and work from the SSD.

     

    Since I read when I use the mac disk tool and format the Macintosh HD the Recovery HD is also lost.

     

    Can you tell me how I can delete the Macintosh HD but keeping the Recovery HD? Maybe its just opening the finder select als folders on Macintosh HD and delete?

     

    Greetings

    Tobias

    Tobias,

     

    I use SuperDuper! a lot. The Recovery HD is just a small (approx. 1GB) petition that has a web and Time-Machine restore utility on it. Dedicating an entire HD to recovery might be efficient if that Recovery HD was on a thumb drive. I would either petition for the Recovery HD and re-name the remaining Mini's internal as a Time-Machine, OR... your SSD's clone from SuperDuper! That way you can use the clone as a safety net in case the SSD is not connected. You could also dedicate the remaining internal Macintosh HD and rename it Media HD, just a thought.

     

    BTW: The external SSD is not going to be as fast as it could be unless you are connecting via the new Thunderbolt cable.

     

    Here's Apple's support page on creating a Recovery HD: http://support.apple.com/kb/HT4848

     

    I have the Lion installESD.dmg on a thumb drive as my Recovery HD.

     

    Hope that helped.

    iMacs, MacBooks, Minis, iPads, Mac OS X (10.7), ezepub.com | macroads.com
  • Chris Hayden Level 1 Level 1 (105 points)
    Currently Being Moderated
    Aug 20, 2011 2:21 AM (in response to saiboter)

    saiboter wrote:

     

    Yes I've made already a recovery USB stick. But that really answers my question

     

    I just want to know how to keep the recovery HD partition on the HDD but delete the HDD?

    You can use Apple's Disk Utility to create a .dmg of the existing Recovery HD, open that, and copy everything to the reformatted single petitioned HDD, again using Apple's Disk Utility.

     

    Note the image. The primary drive above any named drive has to be highlighted in order to generate the Partition Tab.

    Untitled.png

     

    Hope that answers what you are asking.

    iMacs, MacBooks, Minis, iPads, Mac OS X (10.7), ezepub.com | macroads.com
  • Chris Hayden Level 1 Level 1 (105 points)
    Currently Being Moderated
    Aug 20, 2011 4:53 AM (in response to saiboter)

    Sure, Macintosh HD and the original Recovery HD are 2 partitions on the same drive. To get rid of one the drive has to be reformatted. So, backup anything you have on the internal Macintosh HD temporarily to an external HD. Re-partition to one or however many partitions you'd like and clone back whatever you want to have.

     

    Building on my previous suggestions of using the internal drive as a media or clone, you could access your USB Recovery by holding down the Option (alt) Key at startup and choosing the thumbdrive Recovery.

    saiboter wrote:

     

    First thanks for the comments!

     

    Here is my current constalation:

    - SSD

    - Macintosh HD

       - Recovery HD

     

    I am currently booting and working from the SSD. I've downloaded the Lion Recovery Disk Assistant. But when I start it on the SSD I get an error saying no Recovery HD is existing. I think this is because of the Recovery HD partition is on the Macintosh HD.

     

    Any idea to keep the Recovery HD partition but just move/copy it to the SSDrive?

    Hope that helped.

    iMacs, MacBooks, Minis, iPads, Mac OS X (10.7), ezepub.com | macroads.com
  • jsd2 Level 5 Level 5 (6,200 points)
    Currently Being Moderated
    Aug 20, 2011 5:34 AM (in response to saiboter)

    Hi,

     

    I haven't tested this and therefore can't be sure, but I think that as long as you select the indented Macintosh HD "volume icon" in Disk Utility as the item to be erased, then the hidden Recovery HD partition should be preserved:

     

    Screen shot1 2011-08-20 at 5.14.02 AM.jpg

     

     

    Do not select the non-indented "drive icon" above it - if you do then all the partitions will be erased, including the hidden Recovery HD partition.

     

    By way of example, in my own system I have Lion installed on a partition on an external drive.  If I enable DIsk Utility to show hidden partitions, that drive looks like this:

     

    Screen shot2 2011-08-20 at 5.34.06 AM.jpg

     

     

     

    If then I select the indented Lion volume "Lac5 BetaLion" and click "Erase," I get this warning dialog:

     

    Screen shot3 2011-08-20 at 8.05.50 AM.jpg

     

     

    I didn't proceed with this, but that dialog suggests that the similarly indented "Recovery HD" partition would not be be affected. By contrast, if I select the upper non-indented "drive" icon and click "Erase", I instead get this dialog:

     

    Screen shot4 2011-08-20 at 8.12.41 AM.jpg

     

     

    Perhaps others here have actually tried erasing just an indented Lion partition, and can comment further as to whether the Recovery HD partition is preserved.

     

    edit:

    I was actually booted in Snow Leopard when I tried the above in Disk Utility - I haven't looked while booted in Lion.

     

    Message was edited by: jsd2

  • Chris Hayden Level 1 Level 1 (105 points)
    Currently Being Moderated
    Aug 20, 2011 6:50 AM (in response to Chris Hayden)

    In the release version of Lion, the Recovery HD is a hidden partition (see grayed arrows and box in screen capture below).

     

    Getting everything the way you want it, you could, for instance, highlight the primary drive (i.e., my case: 1 TB ST...) and use the New Image button at the top to duplicate the whole drive with Recovery HD and Macintosh HD on the .dmg. Then, use SuperDuper! to clone that .dmg to your SSD.

     

    Untitled.png

    saiboter wrote:

     

    First thanks for the comments!

     

    Here is my current constalation:

    - SSD

    - Macintosh HD

       - Recovery HD

     

    I am currently booting and working from the SSD. I've downloaded the Lion Recovery Disk Assistant. But when I start it on the SSD I get an error saying no Recovery HD is existing. I think this is because of the Recovery HD partition is on the Macintosh HD.

     

    Any idea to keep the Recovery HD partition but just move/copy it to the SSDrive?

    Hope that helped.

    iMacs, MacBooks, Minis, iPads, Mac OS X (10.7), ezepub.com | macroads.com
  • donv (The Ghost) Level 5 Level 5 (4,600 points)
    Currently Being Moderated
    Aug 20, 2011 8:04 AM (in response to saiboter)

    saiboter:

     

    See this link on making the disk image.

  • Chris Hayden Level 1 Level 1 (105 points)
    Currently Being Moderated
    Aug 20, 2011 8:32 AM (in response to saiboter)

    Anyone who has tried to do the kind of stuff you are doing has had to start all over at somepoint. That said...

     

    If you reinstall Lion to your SSD, that in itself might solve everything.

  • Chris Hayden Level 1 Level 1 (105 points)
    Currently Being Moderated
    Aug 20, 2011 8:46 AM (in response to saiboter)

    saiboter wrote:

     

    ... indeed the Recovery HD is missing.

    It may not be "missing", but just hidden. I use a utility called Secrets to show hidden files and folders. http://secrets.blacktree.com/

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