Does this happen with other usb key drives too? Is this a consistently reproducible problem? Can you please attach the output of dmesg, /var/log/messages and /var/log/syslog when this problem is observed?
Thank you. ** Changed in: Ubuntu Status: Unconfirmed => Needs Info -- usb device mounted but impossible to correctly copy files from or to the device https://launchpad.net/bugs/72896 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs