Problem accessing to time machine external hard disk. please need help

Discussion in 'Mac OS X Lion (10.7)' started by manumanu73, Aug 26, 2011.

  1. manumanu73 macrumors newbie

    Joined:
    Aug 26, 2011
    #1
    Hi, i can't access any more to my time machine external hard disk.

    this after noon i tried to restore an image on another external hard disk, this one with multy partition, because i had a problem restoring this image i folowed this instructions of this page:
    http://forums.macrumors.com/showthread.php?t=375769

    i have past that in shell


    hdid -nomount "/Volumes/Diotallevi/Clean Checkpoints/WDC Image.dmg"
    diskutil list
    dd if=/dev/disk3 of=/dev/disk2 bs=131072

    since then my time machine hard disk is not called any more "my book" but disk 2. and i can t access it.

    please any one knows how i can do to access it.:confused:
    thanks
     
  2. itickings macrumors 6502a

    itickings

    Joined:
    Apr 14, 2007
    #2
    When you pasted the commands into the shell, for how long did they run? Seconds? Minutes? Hours?

    Code:
    dd if=/dev/disk3 of=/dev/disk2 bs=131072
    The above line says to read the contents from whatever is considered disk3 and write them onto what is marked as disk2. Since your TM disk appear to be called disk2 now, it was most likely partially or completely overwritten.

    Any overwritten data is 100% gone. If only some data in the beginning of the drive was overwritten, there are different recovery softwares available that can potentially rescue data that wasn't overwritten.

    For future reference, do not just paste commands into the Terminal without being 100% sure what you're doing.
     
  3. manumanu73 thread starter macrumors newbie

    Joined:
    Aug 26, 2011
    #3
    thanks for your answer,

    after have done that i did not notice any thing and work for 3 more hours without being able to restire my image.

    after restarting my computor, i had a message asking for my TM password.
    and from disk utility, i can t access it. can t repair it...
     
  4. manumanu73 thread starter macrumors newbie

    Joined:
    Aug 26, 2011
    #4
    i tried to use a recovery data soft but the external hard drive don t show up
    is thier any solution left?
     
  5. itickings macrumors 6502a

    itickings

    Joined:
    Apr 14, 2007
    #5
    You are probably out of luck. An expensive data recovery firm might be able to retrieve something, possibly.

    Just to exhaust all possibilities - Issue the following command in Terminal, and post the output:
    Code:
    diskutil list
    The command will list all disks and all of their partitions.
     
  6. manumanu73 thread starter macrumors newbie

    Joined:
    Aug 26, 2011
    #6
    thanks for your help itickings,
    after list disk
    this is the answer i receive

    #: TYPE NAME SIZE IDENTIFIER
    0: GUID_partition_scheme *1.0 TB disk0
    1: EFI 209.7 MB disk0s1
    2: Apple_HFS me 999.3 GB disk0s2
    3: Apple_Boot 654.6 MB disk0s5
    /dev/disk1
    #: TYPE NAME SIZE IDENTIFIER
    0: GUID_partition_scheme *3.0 TB disk1
    1: EFI 209.7 MB disk1s1
    2: Apple_CoreStorage 3.0 TB disk1s2
    3: Apple_Boot Boot OS X 134.2 MB disk1s3
    /dev/disk2
    #: TYPE NAME SIZE IDENTIFIER
    0: GUID_partition_scheme *320.1 GB disk2
    1: EFI 209.7 MB disk2s1
    2: Apple_HFS 2 64.0 GB disk2s2
    3: Apple_HFS lionInstalled 63.5 GB disk2s3
    4: Apple_Boot Recovery HD 650.0 MB disk2s4
    5: Apple_HFS 1 64.0 GB disk2s5
    6: Apple_HFS lionInstall 64.0 GB disk2s6
    7: Apple_HFS 3 63.1 GB disk2s7
    /dev/disk3
    #: TYPE NAME SIZE IDENTIFIER
    0: Apple_partition_scheme *1.6 GB disk3
    1: Apple_partition_map 30.7 KB disk3s1
    2: Apple_Driver_ATAPI 2.0 KB disk3s2
    3: Apple_HFS Data Rescue 3 1.6 GB disk3s3


    finaly i manage to do a deep scan on the TM hasrd disk i can see a lot of files but they are empty, images don't open, pdf can not be read. do i have another solution?

    thanks again
     

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