There is a thread where people complain that uas in kernel 3.15 is causing their USB devices to fail. That module is now the responsible of managing USB Mass Storage Devices. The problem is related to a new kernel module that was introduced in Linux Kernel 3.15 called uas (USB Attached SCSI) (see release announcement). In my case, S.M.A.R.T had been working properly on the device for years while using Ubuntu 12.04, and then under Ubuntu 14.04 it happened exactly what you tell in the question. SMART support is: Ambiguous - ATA IDENTIFY DEVICE words 85-87 don'tĪ mandatory SMART command failed: exiting. SMART support is: Ambiguous - ATA IDENTIFY DEVICE words 82-83 don't Read Device Identity failed: scsi error unsupported field in scsiĭevice is: Not in smartctl database [for details use: -P I ran sudo smartctl -all /dev/sdb -test=short -T permissive I got this error: smartctl 6.4 r4002 (local build)Ĭopyright (C) 2002-14, Bruce Allen, Christian Franke, I tried running gksu gnome-disks but still the option is greyed out. Also see the details about the hard drive in image itself.

Right now my external drive does not has any errors but I just want to check manually to make sure.Īs seen from image below, the option for SMART data and Self-Test is greyed out.

Seagate long generic test