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[Launchpad Bug Tracker <1321816@xxxxxxxxxxxxxxxxxx>]

This bug was fixed in the package systemd - 208-8ubuntu2

---------------
systemd (208-8ubuntu2) utopic; urgency=medium

  [ Ben Howard ]
  * 75-persistent-net-generator.rules: Fix matches of HyperV. (LP: #1361272)

  [ Martin Pitt ]
  * Add new autopkgtest boot_and_services which reboots the testbed with
    systemd as init and verifies that the most critical services like lightdm,
    D-BUS, NetworkManager, and cron work. (To be extended in the future)
  * Fix udev path in udev(7). (LP: #1357782)
  * path_id: suppress ID_PATH for devices with an unknown parent device type.
    (LP: #1321816)
  * udev-builtin-keyboard: Allow numeric key codes. (LP: #1247584)
 -- Martin Pitt <martin.pitt@xxxxxxxxxx>   Mon, 08 Sep 2014 14:44:35 +0200

** Changed in: systemd (Ubuntu)
       Status: Fix Committed => Fix Released

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https://bugs.launchpad.net/bugs/1321816

Title:
  [udev] /dev/disk/by-path link for scsi disks always has host "0",
  causing conflicts

Status in “systemd” package in Ubuntu:
  Fix Released

Bug description:
  The /dev/disk/by-path links to scsi disks are supposed to be of the
  form "scsi-$host:$bus:$device$lun".  The host portion is always zero,
  leading to duplicates from different hosts.  It appears these numbers
  are pulled from ID_PATH, and I can't figure out where this variable
  comes from.

  I noticed this while playing around with the lio fake scsi target
  adapter.  Here is the full udev info on a disk created on such an
  adapter.  As you can see, it has been assigned scsi host id 13, so
  that is what it should be using for the $host digit, rather than zero.

  P: /devices/tcm_loop_0/tcm_loop_adapter_5/host13/target13:0:1/13:0:1:0/block/sdg
  N: sdg
  S: disk/by-path/scsi-0:0:1:0
  E: DEVLINKS=/dev/disk/by-path/scsi-0:0:1:0
  E: DEVNAME=/dev/sdg
  E: DEVPATH=/devices/tcm_loop_0/tcm_loop_adapter_5/host13/target13:0:1/13:0:1:0/block/sdg
  E: DEVTYPE=disk
  E: ID_BUS=scsi
  E: ID_MODEL=FILEIO
  E: ID_MODEL_ENC=FILEIO\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20
  E: ID_PART_TABLE_TYPE=dos
  E: ID_PATH=scsi-0:0:1:0
  E: ID_PATH_TAG=scsi-0_0_1_0
  E: ID_REVISION=4.0
  E: ID_SCSI=1
  E: ID_TYPE=disk
  E: ID_VENDOR=LIO-ORG
  E: ID_VENDOR_ENC=LIO-ORG\x20
  E: MAJOR=8
  E: MINOR=96
  E: SUBSYSTEM=block
  E: USEC_INITIALIZED=400656927711
  E: nomdmonddf=1
  E: nomdmonisw=1

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