I can add another data point: Same thing happened to me. I have a 300GB external Seagate drive that was working fine for a few years with no problems attached to the USB 2.0 port of my Gigabyte motherboard. After upgrading to 14.04 with kernel 3.13.0-39-generic (64-bit) the drive switches to read-only FS after the first write operation and I see a number of "end_request: critical target error" messages in kern.log.
The drive also has a firewire port, so I unplugged the USB cable and plugged in a Firewire cable and now all is well. I've written multiple GBs to it with no problems. The only issue is that the throughput is substantially lower now -- around 25 MB/s compared to around 43 MB/s I was seeing before with USB but I can live with that for a while. -- 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/sdi: 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
