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Re: Unmount "removable" volumes of USB mass storage devices on Mac OS X?

Hello Chen,

On Friday, January 24, 2003, at 08:59  AM, Chen wrote:

I have tried PBUnmountVol & UnmountVol, but i do not succeed to unmount the
volume.Did any one
known how to use them?

As was pointed out, this is not a USB question. Other than the Darwin lists, you might also find the carbon-development list helpful:

<http://lists.apple.com/mailman/listinfo/carbon-development>.

You can also use the Developer search engine to find information on these calls:

<http://developer.apple.com/>

You didn't say what error code was returned, but usually a volume can't be unmounted because there are files open on the volume. On Mac OS X, the lsof command will list open files.

Also, on Mac OS X, if you have an application with its current working directory on that volume, it won't be ejectable. For example, if you have a Terminal session where you've issued a cd command to some directory on that volume, the volume won't be unmountable.

I hope this helps. If not, people on the other lists should be able to help.

Thanks,
--gc
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References: 
 >Unmount "removable" volumes of USB mass storage devices on Mac OS X? (From: "Chen" <email@hidden>)



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