It occurred for me yesterday for the first time ever. I have Dell XPS netbook running 64bit 16.04, upgraded from 14.04. Been using Ubuntu for many many years on many machines, never seen this before.
Symptoms: With one of my thumb-drives, I could copy/move files in terminal without any problems, but Nautilus complained about the drive being read-only. Interestingly, using Nautilus, I could still delete files I copied using terminal. Today the bug doesn't occur with the same thumb-drive. Thumb drive is not brand new (1~2 years old), but there are no problems with it as far as I can see. Between yesterday and today: I didn't shut down the system on which bug showed up, however I suspended it. Also, I used the drive with other Ubuntu machine. nautilus --version GNOME nautilus 3.14.3 lsb_release -a No LSB modules are available. Distributor ID: Ubuntu Description: Ubuntu 16.04.1 LTS Release: 16.04 Codename: xenial Any recommended steps to be taken (to gather more data) if I ever see this again? -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1021375 Title: Nautilus says the USB stick is read only when it is not To manage notifications about this bug go to: https://bugs.launchpad.net/nautilus/+bug/1021375/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs