Macbook Pro no longer mounts external drive

Discussion in 'MacBook Pro' started by cheezedaze, Mar 9, 2012.

  1. cheezedaze macrumors newbie

    Joined:
    Mar 9, 2012
    #1
    Hey guys and gals -

    I've been looking around these forums and google for days now, and am at a bit of a dead end, so I'm reaching out to the community to assist me in piecing this together.

    I have a few month old MB Pro running Lion.

    Problem: I have a WD My Passport 1TB with all my music, movies, TV shows, etc... anyone who knows the pain of backing up their extensive DVD libraries knows my struggle. I do not have a back up (I know, I know - I've learned the hard way and I shall repent and sin no more). The drive no longer mounts. When I plug it in, I get the dialog "The disk you inserted was not readable by this computer - Initialize... Ignore Eject"

    When I run disk utility and try to do a repair, it says:
    Invalid BS_jmpBoot in block: 000000
    Volume Repair Complete
    Updating boot support partitions as required
    Error: Disk Utility can't repair this disk. ... etc


    It's a FAT32 Hard Drive and Disk Warrior laughed at me and spit in my face about it.

    Windows won't mount it.

    I used Data Rescue 3 - Quick scan: Nada - Deeps Scan - all the files! The problem is, I used it before and if I recover the files it doesn't keep any of the names. With tens of thousands of files, this doesn't thrill me. It's a last resort.

    I then turned to Drive Genius 3. Since the drive won't mount, I'm limited on options. I cleaned up the blocks, but it didn't help. The only other logical option I could try would be to clone it over to another external drive, just in case it was a hardware issue. I didn't have much hope, and the cloned drive comes up with the same issue.

    I also started TestDisk, but it was a bit confusing to me and seemed to want to take several days to scan, so I didn't know if I was wasting my time with that as well.

    So here I am, at your mercy. Is it the invalid BS_jmpBoot? If so, how do I fix? Google results return little for my situation. Thanks in advance for any direction you can offer. Comfort welcome, too.
     
  2. cheezedaze thread starter macrumors newbie

    Joined:
    Mar 9, 2012
    #2
    Fixed!!!

    Thanks for everyone's help here ;)

    For posterity sake, and all those who stumble here from Google...

    TestDisk was the way to go. I didn't need a ton of patience either. Rather than "Analyse", because I only had one partition, I went to "Advanced Filesystem Utils" and selected "FAT: Boot and Fat Repair"

    I only had one partition, so that was easy to select which one, then I chose "Boot" - it told me it was bad bad. This I knew. Then I chose "Rebuild BS"

    After a few minutes, it came back with a bunch of stuff, punctuated with the line "extrapolated boot sector and current boot sector are different"

    I then chose "Write" - it did it's thing. I Quit and got out of it.... VIOLA!!! Back to normal with all my files and folders in tact.

    Even though I figured it out shortly after posting, it's good to be a part of your forum now, and not just an observer. I'm grateful for this resource.

    Now time to back up my HDD.
     
  3. heisenberg123 macrumors 603

    heisenberg123

    Joined:
    Oct 31, 2010
    Location:
    Hamilton, Ontario
    #3


    so sorry you never got an answer in that crazy 45 minutes you waited
     

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