1 2 Previous Next 28 Replies Latest reply: Apr 7, 2012 12:54 PM by Shootist007 Go to original post
  • 15. Re: How to recover deleted main OS X Lion and Recovery HD Lion
    LexSchellings Level 5 Level 5 (5,685 points)

    ha, yes, ofcourse...

  • 16. Re: How to recover deleted main OS X Lion and Recovery HD Lion
    putnik Level 3 Level 3 (690 points)

    All newer MBPs, and some older ones after firmware update, can access the Apple Online Recovery system that boots the computer over the internet to a Recovery HD system just like the one include on the HDD when Lion is installed.

     

    This is held in the EFI partition, separate from the Lion Recovery HD partition.  If the poster has been removing partitions he may now have neither

  • 17. Re: How to recover deleted main OS X Lion and Recovery HD Lion
    Shootist007 Level 6 Level 6 (16,640 points)

    putnik wrote:

     

    All newer MBPs, and some older ones after firmware update, can access the Apple Online Recovery system that boots the computer over the internet to a Recovery HD system just like the one include on the HDD when Lion is installed.

     

    This is held in the EFI partition, separate from the Lion Recovery HD partition.  If the poster has been removing partitions he may now have neither

    No it certainly is not. It was created for if and when you have to replace the HDD in your Mac. A new hard drive would not contain any partitions, it is RAW with no partition structure or formatting. Mac's use a EFI as the main system for communicating with all installed hardware as apposed to the BIOS system. The Online system in built into the base EFI system, IE on the motherboard. Not in the EFI partition on the hard drive.

  • 18. Re: How to recover deleted main OS X Lion and Recovery HD Lion
    babowa Level 7 Level 7 (23,280 points)

    No it certainly is not. It was created for if and when you have to replace the HDD in your Mac.

     

    Here is the kb article:

     

    http://support.apple.com/kb/HT4718

     

    "If you happen to encounter a situation in which you cannot start from the Recovery HD, such as your hard drive stopped responding or you installed a new hard drive without Mac OS X installed,"

     

     

    It appears to have been created for more than just a new hard drive - it was created because there are no install/AHT/repair disks for Lion. It also requires that the EFI update has been installed in certain Mac models (of which the OP's is one):

     

    http://support.apple.com/kb/HT4904#

     

    So, if the OP does not have a recovery partition and had not updated the firmware, I don't know of any instance where trying to use it would work.

  • 19. Re: How to recover deleted main OS X Lion and Recovery HD Lion
    putnik Level 3 Level 3 (690 points)

    I was under the impression that disk0s1 in DU was the EFI partition, but what you say makes sense, in that a hard disk will need to be formated or repaired from the outside.  What then is the function of disk0s1?

  • 20. Re: How to recover deleted main OS X Lion and Recovery HD Lion
    Shootist007 Level 6 Level 6 (16,640 points)

    putnik wrote:

     

    I was under the impression that disk0s1 in DU was the EFI partition, but what you say makes sense, in that a hard disk will need to be formated or repaired from the outside.  What then is the function of disk0s1?

    Read this about Intel Mac's.

     

    http://en.wikipedia.org/wiki/EFI_System_partition

  • 21. Re: How to recover deleted main OS X Lion and Recovery HD Lion
    putnik Level 3 Level 3 (690 points)

    Thank you. The Wikipedia entry says that the EFI is a partition on a data storage device, not the motherboard, but I get the impression the article could be updated to explain how it is used, for example, in Lion for Internet Recovery.

     

    I wonder how the OP is getting on?

  • 22. Re: How to recover deleted main OS X Lion and Recovery HD Lion
    Shootist007 Level 6 Level 6 (16,640 points)

    You really don't get it, Do you! That partition is for Updating the EFI Firmware. If you actually read it you would of seen that. It is BLANK. Do you know what EFI stands for? Extensible FIRMWARE Interface which is on the Motherboard/Logic board.

     

    I have to go now. I should of never bothered, gees.

  • 23. Re: How to recover deleted main OS X Lion and Recovery HD Lion
    putnik Level 3 Level 3 (690 points)

    No, it is not clear if Internet Recovery will work after the disk has been reformatted.

  • 24. Re: How to recover deleted main OS X Lion and Recovery HD Lion
    Cajetan Level 1 Level 1 (0 points)

    This is a solution for the Early 2011 13" 2.7 ghz Macbook Pro. For recovery of OS after deleting Main OS X Lion and Lion Recovery HDD

     

    Thank you Shootist007.    

     

    " Command + Option + R "     solved my problem without costing me a $. I owe u dinner and a movie

     

    I was able to access the Online recovery system for OS X Lion even though I had lost my Main OS X and Recovery HDD.

     

    The online recovery system went online, downloaded the Lion that was registered to my MAC, assuming by serial # (I have never purchased the OS X lion and I bought the laptop used without cds), and it installed it perfectly.

     

    The laptop had originally came with 10.6.6 Snow leopard according to "Everymac.com"

     

    I did not need my Apple ID to finish installation. Also there is no need for the Lion recovery HDD as inevitably the computer will download the OS from Apple servers.

     

    Glad Apple is making idiot proof products.

  • 25. Re: How to recover deleted main OS X Lion and Recovery HD Lion
    LexSchellings Level 5 Level 5 (5,685 points)

    very good, problem solved. Give shootist the points (only the OP can do that). Do not give yourself points (will not be counted).

     

  • 26. Re: How to recover deleted main OS X Lion and Recovery HD Lion
    Shootist007 Level 6 Level 6 (16,640 points)

    Cajetan wrote:

     

    This is a solution for the Early 2011 13" 2.7 ghz Macbook Pro. For recovery of OS after deleting Main OS X Lion and Lion Recovery HDD

     

    Thank you Shootist007.    

     

    " Command + Option + R "     solved my problem without costing me a $. I owe u dinner and a movie

     

    I was able to access the Online recovery system for OS X Lion even though I had lost my Main OS X and Recovery HDD.

     


     

    You are Welcome.

     

    Note:

    Even though EveryMac said your Early 2011 MBP came with Snow Leopard that is not totally correct. There were Early 2011 models that did come with Lion Pre-Installed. Those would be MBPs produced after Lion was released, July 2011, until the newer Late model 2011 came out, in October.

  • 27. Re: How to recover deleted main OS X Lion and Recovery HD Lion
    BrockBrahmes Level 1 Level 1 (0 points)

    Well i tried the same way command+option+r and it only shows question mark in a folder, i too have deleted the recovery HD and Lion OS X while trying to install Snow Leopard.

     

    Any solutions to that and why the question mark of death keeps flashing.

  • 28. Re: How to recover deleted main OS X Lion and Recovery HD Lion
    Shootist007 Level 6 Level 6 (16,640 points)

    What year was your Mac made? What version of OS X cam on it when you bought it? What version of 10.6.x Snow Leopard are you try to use to install?

1 2 Previous Next