I'm trying to reproduce this issue to gather addition data. Can folks affected by this bug attach the section of syslog that is generated after attaching the external USB drive.
Specifically, I'm looking to see if the Write cache is enabled or disabled. For example, my syslog shows the cache is disabled: sd 6:0:0:0: [sdc] Write cache: disabled, read cache: enabled, doesn't support DPO or FUA I see that the original bug reporter shows that the write cache is enable, so I'm wondering if that is required to reproduce this: Sep 7 15:07:10 nux kernel: [261449.208280] sd 20:0:0:0: [sdi] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1366538 Title: Synchronisation/close /dev/sdX: i/o error on target host To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1366538/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs