I’ve run into the odd time that Finder will refuse to eject a .dmg file. I found that you can force an eject using the terminal using the following command:
hdiutil detach ImageName
For the ImageName part, it’s easy enough to type the first letter and then hit tab to auto-complete the dmg name.

Sunday December 30th 2007, 1:12 pm
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December 30th, 2007 at 9:24 pm
Cool. Any way to add this as an action in Quicksilver?
February 13th, 2008 at 1:28 pm
Of course you can do this with quicksilver. You just enable the plugin that allows you to execute terminal commands. once you have done that you can assign the action to a hotkey. enjoy.
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You can also use the mount command to eject these files.
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