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 Help! internal HD wont unmount 
 
 
  #1 (permalink)  
Old 07-11-2007, 01:08 PM
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Help! internal HD wont unmount
I,m trying to erase my second internal HD with the disk utility app but I keep getting a warning

Volume Erase failed with the error:

Could not unmount disk.

any ideas what to do
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Old 07-11-2007, 01:10 PM
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Tried restarting the computer?
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Old 07-11-2007, 01:19 PM
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You don't have anything on the second drive that loads at startup or any system files by any chance??
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Old 07-11-2007, 01:22 PM
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I used migration assistant when I loaded Leopard would that have copied certain files across?
restart has no effect
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Old 07-11-2007, 01:26 PM
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try from Terminal:

diskutil list <enter>

then identify the drive, and:

sudo umount /dev/diskX (possibly disk1)
enter your system password (if your the system administrator)

then try erasing in disk utility
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Old 07-11-2007, 01:30 PM
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Boot from install media and format the drive having issues..
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Old 07-11-2007, 01:34 PM
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What purana said.
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