Please try kernel parameter "usb-storage.quirks=vid:pid:u", replace vid and pid to the USB device ids.
This disables UAS mode, which makes the IO slower but possibly more reliable. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1802821 Title: Serious design flaw using large external drives. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1802821/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs