Failed Lion Install Trashed my Drive

Discussion in 'Mac OS X Lion (10.7)' started by yetieater, Jul 24, 2011.

  1. yetieater, Jul 24, 2011
    Last edited: Jul 26, 2011

    yetieater macrumors regular

    Joined:
    May 6, 2007
    Location:
    USA
    #1
    *Fixed Updated 7/29/2011

    Guys

    I have a 500GB internal HDD partitioned with 32GB for Win7 Boot Camp, the rest going to OS X. I committed an upgrade install from SL 10.6.8 to Lion 10.7. Noted one issue in the install log when it came time to migrate my user data, but thought nothing of it. Upon reboot, I get the spinning wheel with :apple: logo for a couple of minutes, and then a "No Entry" / "Do Not Enter" sign. I understand that this is bad news.

    I tried running in Verbose and Single User Mode, but the boot hangs up at one point. I get a message "Still waiting for root device" and the rest is history.

    Booting into the Lion Recovery Partition, I have access to all the utilities. I run Disk Utility and note that my former OS X partition is unmounted. It also claims that the file system is FAT32, which is a blatant lie. Come on, disk utility. Disk Utility claims that the disk has errors beyond its ability to repair and gives up.

    I downloaded some software for Win7, MacDrive 8, which claims to have repair tools for Mac drives. The weird thing is that MacDrive 8 recognizes the OS X partition as HFSJ file system, and allows me to navigate its contents.

    What should I try next?!

    --- FIX ---

    Installed SL on an external harddrive and booted
    Noted that Disk Utility still maintained that original OS X partition was Windows format. Blatant lies!
    DiskWarrior refused to touch it because it wasn't HFS
    So the solution?
    Followed the advice given on: http://osx86.sojugarden.com/2009/10...f-you-broke-it-with-the-chameleon-bootloader/

    Worked for me!
     
  2. RickyB macrumors regular

    Joined:
    Oct 28, 2007
    #2
    Rescue your documents to an external disk using MacDrive whilst you can in case the whole thing fails.
     
  3. yetieater thread starter macrumors regular

    Joined:
    May 6, 2007
    Location:
    USA
    #3
    I forgot to mention. Time Machine has been taking backups of everything for the past 6 months.

    I want to recover the drive. I have a copy of Disk Warrior that I will try next.
     
  4. RaceTripper, Jul 24, 2011
    Last edited: Jul 24, 2011

    RaceTripper macrumors 68030

    Joined:
    May 29, 2007
    #4
    Why not just reformat and restore from backup.

    When I installed Lion, I cloned my internal drive, booted from the clone and reformatted my internal. Then I did a clean install of Lion and restored everything else from Time Machine. That worked great and went smoothly. In addition, Time Machine recognized the upgrade and did an incremental backup instead of a full backup.
     
  5. yetieater thread starter macrumors regular

    Joined:
    May 6, 2007
    Location:
    USA
    #5
    This is an excellent point. It does require that I burn the Lion install to a DVD at this point. Which is good, because I have access to the installer's .DMG. I would hate to lose my Boot Camp partition. That is why I feel the Disk Warrior option may be best to try first.
     
  6. RaceTripper macrumors 68030

    Joined:
    May 29, 2007
    #6
    I put the Lion Installer on the cloned drive I rebooted from. It did not have to burn an installer.
     
  7. yetieater thread starter macrumors regular

    Joined:
    May 6, 2007
    Location:
    USA

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