This is still broken in Trusty. Nautilus is invoking gnome-disks like this:
gnome-disks --block-device /dev/sdb1 --format-device --xid 39846040 I believe the problem is actually in gnome-disks, not Nautilus. When I launch gnome-disks directly and attempt to format either a single partition of a USB stick or the whole drive, the format does nothing and I see an error message like this: Error formatting disk Error synchronizing after initial wipe: Timed out waiting for object (udisks-error-quark, 0) -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to nautilus in Ubuntu. https://bugs.launchpad.net/bugs/1227440 Title: Nautilus' Format option doesn't actually work To manage notifications about this bug go to: https://bugs.launchpad.net/gnome-disk-utility/+bug/1227440/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs