7 Replies Latest reply: Feb 26, 2013 3:19 PM by WZZZ
steve424 Level 1 (0 points)

If i try d utility the areas i need like verify or repair etc are dimmed out. If i tryand reinstall it asks me which startup disk i,d like to boot from and there are no disks to choose from. Please help.   P.s. im not fussed about wiping the existing m lion os and programs and starting from scratch if that what it takes.


iMac, OS X Mountain Lion
  • steve424 Level 1 (0 points)

    I,m using an imac 2.7ghz mid 2011 running latest update of mountain lion.

  • ds store Level 7 (30,325 points)

    You don't use the 10.6 disks, 10.8 has a Recovery HD partiton on the drive, you command r boot into that then install OS X from Apple's servers with your AppleID and password.

     

    See #8

     

    ..Step by Step to fix your Mac

  • WZZZ Level 6 (12,875 points)

    8: Reinstall Just OS X

     

    Category: OS X and bundled Apple software related

     

    Description: Replaces only OS X and bundled Apple software programs with a new copy. Small portions of some third party software installed in OS X itself is removed in the process, but they can be reinstalled later. Third party programs in Applications folder or the User account folders themselves are not touched.

    Small portions of some third party software installed in OS X itself is removed in the process,

     

    First I've heard of this. I was under the impression that absolutely everything was retained. Are you saying this from your own experience using 10.6? Can you give an example what "small portions" are removed? I reinstalled 10.6 several weeks ago and I'm wondering if in fact it preserved all my CS2 and Office '04. Any idea if anything in those would have been affected? I'm not noticing any defects in particular, but those involve files all over the place.

  • ds store Level 7 (30,325 points)

    WZZZ wrote:

     

    I was under the impression that absolutely everything was retained.

     

    Some third party software installs at boot kernel extension files that load when OS X boots, if there is a problem with these one usually gets the famous gray spinning wheel of death (also can be white or blue screen).

     

    You can see what you have by pasting this line in Terminal

     

    kextstat -kl | awk ' !/apple/ { print $6 $7 } '

     

     

    Since the folder holding these is ~/System/Library/Extensions, when OS X is reinstalled those third party kext files are obviously not included, requiring those softwares to be reinstalled from original sources to put theirs back in there.

     

    The #8 Reinstall OS X has the benefit of fixing OS X if it's the issue, removing all third party kext files, including outdated and no longer used ones, as well as replacing all bundled Apple software that comes with OS X (not including iLife).

     

    When this is done with 10.6, the old version of 10.6 is installed, why it's important to Software Update right away for security and bug fixes.

     

    On 10.7-10.8 now I assume the download is the most recent version of OS X as that would make sense.

  • WZZZ Level 6 (12,875 points)

    OK, then, I think neither CS2 nor Office installs any kexts. But since I've already done the reinstall, that wouldn't help now to know what I'm missing. I did happen to run this one (and the one you have just cited as well (borrowed from a certain Mr. Davis) which is far simpler, before doing the reinstall, so I know I'm not missing anything.

     

    kextstat | grep -v apple

     

     

    Since the folder holding these is ~/System/Library/Extensions, when OS X is reinstalled those third party kext files are obviously not included, requiring those softwares to be reinstalled from original sources to put theirs back in there.

    Nope, none of my third party kexts needed reinstalling. They were all there, present and accounted for after the reinstall. And, btw, that's /System/Library/Extensions. No ~ tllde character.

  • steve424 Level 1 (0 points)

    Thankyou so much ds store. That did the trick. It was a case of me deleting a file named vm file which is some sort of mirror for the amount of RAM i have, 4GB. It s hidden in a folder named private and i uncovered it along with swapfiles using daisydisk.  since i,m with virginmedia network wise i presumed it was network info.  OSX Daily said it was ok to delete and you know the rest. Thanks again DS.

  • WZZZ Level 6 (12,875 points)

    Maybe I'm not understanding something here, but I don't see why that vm file being missing would have prevented booting, unless you deleted /private/var entirely.