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DU "can't unmount disk"?

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DU "can't unmount disk"?
clyde Offline
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#1
02-15-2017, 01:37 AM
Want to use an external drive for Time Machine, so thought I'd erase the ext drive first. It is partitioned, so I told Disk Utility to erase the larger partition. It started, quit, and said: Can't unmount disk.

What does this mean? It will erase the other partition…
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Messages In This Thread
DU "can't unmount disk"? - by clyde - 02-15-2017, 01:37 AM
Re: DU "can't unmount disk"? - by clyde - 02-15-2017, 01:38 AM
Re: DU "can't unmount disk"? - by PeterW - 02-15-2017, 01:45 AM
Re: DU "can't unmount disk"? - by jdc - 02-15-2017, 02:03 AM
Re: DU "can't unmount disk"? - by GGD - 02-15-2017, 02:13 AM
Re: DU "can't unmount disk"? - by Onamuji - 02-15-2017, 02:20 AM
Re: DU "can't unmount disk"? - by Robert M - 02-15-2017, 03:32 PM
Re: DU "can't unmount disk"? - by PeterW - 02-15-2017, 04:44 PM

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