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When I copy files of a considerable size (for example right now one of 689MB) to a USB stick, the copy hangs at 100% for 5 min or more.

I have tried both Nautilus and rsync --progress. With the former it seems that never ends and I have to kill nautilus. With the latter it ends, but as I said, 5 minutes or more after it has reached the 100%.

I'm using Wheezy 64 bits and Gnome Shell.

If I'm not mistaken, there is a reported bug about the Nautilus issue, but why is it happening with rsync too?

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I think Linux is buffering the data until some final synchronous operation at the end.

If you mount it as a syncronous filesystem, then it should give a more realistic copy progress indicator:

Files copied to flashdrive only on unmount

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Reading that question I realize about something: I'm using flush. As said in that question, it should copy when it's inactive. However since it reaches 100%, it becomes inactive (at least no light). – Ay0 Apr 8 '13 at 20:29

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