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guildmac

macrumors newbie
Original poster
Mar 4, 2014
1
0
hi,

MAC PRO mid 2010 - OS X Mavericks

I recently set up a backup to a new internal HDD in time machine but realised that I was backing up the wrong data, so I erased the disk in disk utility without removing it from time machine.
now the disk partition options in disk utility are all greyed out, the only things I can do with the disk are verify and repair both of which seems to run without errors but achieve nothing.

I have since removed the disk from time machine, I'm guessing the problem was caused by erasing the disk while it was still linked to time machine.

how can I get this disk back up to a usable state?
Would installing it into another MAC and running the disk utility work or maybe formatting the disk in a windows system.

any advice would be much appreciated.
 
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