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OS X (Apple) OS X is a line of Unix-based graphical operating systems developed, marketed, and sold by Apple.

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  #1 (permalink)  
Old 04-17-2009
unimachead unimachead is offline
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Thumbs up When a disk won't 'Unmount"

hdiutil detach -Force disk&number

(ex:hdiutil detach -Force disk1)
  #2 (permalink)  
Old 06-01-2009
figaro figaro is offline
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Is this problem solved? When forcing an unmount you should check why it won't unmount in the normal way.
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Old 06-05-2009
unimachead unimachead is offline
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This solves the problem just fine. Most glitches in the dismount are program related, (it's obvious to check for the causes)...checking for the causes was not why I posted this solution. Hope it helps a few folks out there.

UMH
  #4 (permalink)  
Old 07-12-2009
pyramation pyramation is offline
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Join Date: Jul 2009
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you can also do this:

diskutil unmountDisk force /Volumes/<name of drive>

example:
diskutil unmountDisk force /Volumes/Video\ 800
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