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Member Since: Oct 17, 2011
Posts: 13
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I cant open my external Hard drive. Its a Lacie and its got its own power supply. It was working fine until I did a clean install of OS Lion. Now I can't accesses it. It appears in disk utility but instead of what I called it "AC Drive" I it is called disk2s2. Its greyed out and any attempt to repair or verify returns this message

Invalid Volume Header @ 0: unsupported format
Invalid Volume Header @ 319728958976: unsupported format
disk3s2 has CoreStorage features not supported by this fsck_cs version
Problems were found with the partition map which might prevent booting
Error: Storage system verify or repair failed.

Any advice?

Ive tried disk warrior. Since I heard it recommended but I can only select my drive in the hardware tab which tells me nothing other than the device is functioning normally.

Pretty fed up with this problem as Ive already spent all of my free time this week attempting to solve it.
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