I am experiencing the same issue when I plugged my seagate backup plus in USB 3.0 port and not issue if plugged in usb 2.0. OS: Scientific Linux, kernel 2.6.32 .
And other important observation is the issue is same in windows 7. Other important observation which may be helpful to trouble shooters is that I experience this issue after I compiled and used the usbreset (usbreset.c) program from http://unix.stackexchange.com/questions/7051/how-to-re-mount-a-usb-stick-after-unmounting-from-nautilus-without-disconnecting ( I used this program on USB 3.0 port only ) Before that there is no such issue. My mother board is GIGABYTE 970A-DS3P >From my observations I infer the issue is related with USB controllers/firmware which might have been set right by vendors through some control on chipsets/mother boards which is being reset with usbreset mentioned above or by something else by users and going in to trouble. Hope these observations lead to solution. ( I already used the work-around : umount before googling the issue and is working fine ). -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/792085 Title: Automatic remount of safely removed drive To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/nautilus/+bug/792085/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs