You have been subscribed to a public bug:
Seagate STEA1000400 external USB hard disk (USB ID 0bc2:2322) causes
continuous SCSI bus resets by default. As a workaround, disabling UAS
causes the device to work fine.
To disable UAS, I created a file in /etc/modprobe.d with the following contents:
options usb-storage quirks=0bc2:02322:u
ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: ubuntu-release-upgrader-core 1:16.04.14
ProcVersionSignature: Ubuntu 4.4.0-22.40-generic 4.4.8
Uname: Linux 4.4.0-22-generic x86_64
ApportVersion: 2.20.1-0ubuntu2
Architecture: amd64
CrashDB: ubuntu
Date: Sun May 22 22:02:26 2016
InstallationDate: Installed on 2012-10-07 (1323 days ago)
InstallationMedia: Ubuntu 12.04.1 LTS "Precise Pangolin" - Release amd64
(20120822.4)
PackageArchitecture: all
ProcEnviron:
LANGUAGE=
TERM=xterm
PATH=(custom, no user)
LANG=en_US.UTF-8
SHELL=/bin/bash
SourcePackage: ubuntu-release-upgrader
Symptom: ubuntu-release-upgrader
UpgradeStatus: Upgraded to xenial on 2016-04-09 (43 days ago)
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug xenial
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Seagate external drive causes SCSI bus resets when UAS enabled
https://bugs.launchpad.net/bugs/1584557
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