Why does the finder refuse to eject SOME of the external drives, saying "finder is using it"? [duplicate]
Sometimes, a volume refuses to eject because some program is using them.
Sadly, Finder doesn't give the identity nor gives a way to solve the problem.
So, how do you solve this problem in a clean way, without using a terminal ?
Using the terminal, I may find a way to eject it, but it's not reliable.
sudo lsof | grep volumeName
certainly gives some information, but I don't feel like killing random processes in order to unmount a volume. Also, not everybody is willing to run command in a terminal.
I also don't want to force eject the volume. I think we shouldn't have to force the ejection when we didn't initially run the program that locks the volume.
Processes that are frequently involved are: mds
and notifyd
.
Killing mds
does not guarantee that the ejection of the volume will be possible. mds
process is respawned after getting killed, and continues preventing the ejection of the drive.
I also noticed that mds
can be running and using files, and still not preventing the ejection of the volume, so I'm not even sure that it's mds
fault.
Solution 1:
I've found this solution that has worked reliably several times already today.
The process that, in my case, was responsible for the failure of the ejection was:
SystemUIS
(as seen in top
in a terminal) which is in fact SystemUIServer
.
Here is how to kill it without a terminal: run Activity Monitor, find SystemUIServer
(type UI in the top right search field), and stop it with the top left button (stop button).