Thanks Colin, unfortunately that doesn't change anything. I'm attaching a new piece of kernel log reporting the errors generated during the file transfer.
** Attachment added: "kern.log.txt" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/969918/+attachment/3090535/+files/kern.log.txt -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/969918 Title: writing files fails on usb drives with FAT file system To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/969918/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs