Disk Utility stuffed up my portable HD

Discussion in 'Mac Basics and Help' started by arvz88, Mar 14, 2010.

  1. arvz88 macrumors newbie

    Mar 14, 2010
    Hey guys, :)

    I was trying to get my portable hard drive (WD 500GB) to work with my mac. Here's a quick recap of what I've done:

    I used EASEUS partition master to create two partitions on the hard drive:

    1) NTFS
    2) FAT32 (Hoping it would be writable on my macbook)

    Turns out even though the second partition is FAT32 my macbook for whatever reason still cannot write to it. :(

    So I fired up the disk utility, chose Volume Format: MS-DOS (FAT) and hit Erase.

    an error message popped up saying something about invalid arguments, and after that my HD is totally unusable both in the mac and on my PC. :mad:

    Here is the log from disk utility:

    2010-03-14 20:29:05 +1100: Disk Utility started.

    2010-03-14 20:29:37 +1100: Preparing to erase : “WDEFAT32”
    2010-03-14 20:29:37 +1100: Partition Scheme: Master Boot Record
    2010-03-14 20:29:37 +1100: 1 volume will be erased
    2010-03-14 20:29:37 +1100: Name : “WDEFAT32”
    2010-03-14 20:29:37 +1100: Size : 105.0 GB
    2010-03-14 20:29:37 +1100: Filesystem : MS-DOS (FAT)

    2010-03-14 20:29:39 +1100: Error with volume erase Invalid argument
    2010-03-14 20:29:40 +1100: Erase complete.
    2010-03-14 20:29:40 +1100:
    2010-03-15 01:21:52 +1100: Disk Utility started.

    2010-03-15 01:23:03 +1100: Name : WD 5000BEV External Media
    Type : Disk

    Partition Map Scheme : Unformatted
    Disk Identifier : disk2
    Media Name : WD 5000BEV External Media
    Media Type : Generic
    Connection Bus : USB
    USB Serial Number : 57441D565845304139394D32303124
    Device Tree : /PCI0@0/USB7@1D,7/@3:0
    Writable : Yes
    Ejectable : Yes
    Mac OS 9 Drivers Installed : No
    Location : External
    Total Capacity : 465.8 GB (500,107,862,016 Bytes)
    S.M.A.R.T. Status : Not Supported
    Disk Number : 2
    Partition Number : 0


    Steps I've taken after that:

    1) Started up EASEUS partition master on my pc (it has a partition recovery function) however with the HD plugged in the software just will not start. (Unplug the HD and it works fine)

    2) Started up Acronis disk director - exact same thing; program crashes at startup if the HD is plugged in and works just fine when I unplug it.

    I have quite a lot of data in the NTFS partition that I definitely need to get back. If the thing is empty I can just go into the disk utility and setup a couple of new partitions (since apparently there are no partitions) but I can't do that cause I need to have the partitions recovered.

    Any clues? :confused:


    edit: couple of little more information:
    I am running Windows 7 on the PC
    and Leopard on the macbook
  2. pinsoft macrumors newbie

    May 25, 2010
    hey arvz88,

    i got the same problem as yours, just wondering if u have solved it ?

    many thanks ;)

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