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KPGills

macrumors newbie
Original poster
Oct 28, 2007
8
0
Hi All,

Hope you are well.

Is anyone able to help me with the problem below.

I have an external hard drive which I used under Snow Leopard to keep Time Machine back-ups on. I have tried to do a back-up on Lion and received the error:-

There was an error preparing the Time Machine backup disk “New Volume”.
Unable to write to the last block of the device.

If I put the external hd into a PC it sees it, but it needs configuring as a new device. It now no longer appears on my Mac at all!!

I have tried the disk utility but it cannot format/erase due to it being Unable to write to the last block of the device.

Can anyone help get my drive working in my Mac again please?

Thanks a lot,

Keith
 
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