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[Launchpad Bug Tracker <1551937@xxxxxxxxxxxxxxxxxx>]

This bug was fixed in the package curtin - 0.1.0~bzr399-0ubuntu1~14.04.1

---------------
curtin (0.1.0~bzr399-0ubuntu1~14.04.1) trusty-proposed; urgency=medium

  * SRU current curtin
    - curtin/net: fix inet value for subnets, don't add interface attributes
      to alias (LP: #1588547)
    - improve net-meta network configuration (LP: #1592149)
    - reporting: set webhook handler level to DEBUG, no filtering
      (LP: #1590846)
    - tests/vmtests: add yakkety, remove vivid
    - curtin/net: use post-up for interface alias, resolve 120 second time out
      on Trusty when using interface aliases
    - vmtest: provide info on images used
    - fix multipath configuration and add multipath tests (LP: #1551937)
    - tools/launch and tools/xkvm: whitespace cleanup and bash -x
    - tools/launch: boot by root=LABEL=cloudimg-rootfs
    - Initial vmtest power8 support and TestSimple test.

curtin (0.1.0~bzr389-0ubuntu1~14.04.1) trusty-proposed; urgency=medium

  * New upstream snapshot.
    * Detect and remove legacy /etc/network/interfaces.d/eth0.cfg from
      target (LP: #1577872)

curtin (0.1.0~bzr387-0ubuntu1~14.04.1) trusty-proposed; urgency=medium

  * sru current curtin (LP: #1577872)
  * debian/new-upstream-snapshot, debian/README.source: add
    new-upstream-snapshot and mention it in README.source
  * debian/control: drop python from curtin-common Depends.
     remove unnecessary Depends on util-linux as it is essential.
     python3-curtin, python-curtin: drop unnecessary 'curl' from Depends.
     python3-curtin, python-curtin: list oauthlib and yaml Depends
  * debian/control: add bcache-tools to curtin Depends.
  * New upstream snapshot.
    - fix timestamp not being updated in reported events
    - mdadm: resolve mdadm/bcache and trusty+hwe issues
    - fix support for 4k disks
    - emit source /etc/network/interfaces.d/*.cfg in
      rendered /etc/network/interfaces
    - net: introduce 'control' field to network configuration to allow
      for declaring manual controlled interfaces
    - disable cloud-init networking as curtin is the source of network config
    - block: wipe_volume improvements
    - reporter: enhance reporting events to include levels and
      improve usefullness of messages
    - network: add bonding tests and cleanup newline rendering
    - block: fix partition path issue with nvme devices
    - fix logic error in kernel installation
    - block: add debug regarding raid modules being missing on mdadm create
    - add s390x support to curtin and vmtest
    - support build on xenial where python3 pyflakes is split out
    - fix uefi install path on nvme devices
    - numerous unit tests and vmtests improvements. Add running
      of pylint for static checking.
    - Add bond parsing & improved source, source-directory parsing
      of /etc/network/interfaces.
    - move global dns-* options under auto lo in /etc/network/interfaces
    - partitioning: limited support for odd ordering of partition numbers
    - change use of mkfs.fat to mkfs.vfat and add dependency.
    - block-meta: use removable devices if no non-removable devices are
      found [Robert Clark]
    - Improve 'curtin mkfs' and move mkfs logic to block.mkfs fixes
      using btrfs on precise and trusty.
    - fix failures caused by systems with invalid system_clock
    - support bcache installation on precise
    - fix bug in install_grub to partition when storage_config provided
      fixing lvm installation on power8
    - block_meta: handle 'preserve' flag for raid devices
    - close file descriptors from --config= arguments
    - xenial: disable update-motd during an apt-get update
    - subp: add decode parameter, defaulting to replace.
      this fixes errors when output of a command had non-utf chars
    - support passing an integer or valid float to human2bytes
    - Use /proc/mounts to find missing mountpoints rather than relying
      entirely on lsblk as lsblk differs widely between ubuntu releases.
    - support extracting tar files compressed with xz or bzip or
      uncompressed. Previously required gzip compression.
    - Improve dependency checking and installation
      this fixes curtin running on precise and installing dependencies
      it needs.
    - Reduce chance udev race with mdadm opening /dev/mdX
    - Allow re-use of bcache cache devices with separate backing devices
    - invoke mkfs.ext3 or mkfs.ext4 with -F to fix issues found if
      target device had a filesystem already present.
    - Partition alignment and sizing fixes
    - Set bcache cache_mode if present in storage config
    - when apt-get update is called during installation, do not download
      translation files and source files, reducing chances for mismatch.
    - add system-install sub command. 'curtin system-install pastebinit'
      will install packages in a way guaranteed to not prompt.
    - add 'system-upgrade' command and config to easily update the
      system after installation before reboot.
    - fix reporting of FAIL when a subcommand used sys.exit(0)
    - grub-install: if fail to find mounted uefi partition, give more
      debug output
    - network config: add support for dns-search key in subnet and search
      in nameserver
    - Ensure required networking packages are installed in the target.
    - stop grub from going into graphical/vga mode on installed systems
    - curthooks: support specifying kernel/package without mapping
    - ChrootableTarget: do not attempt to change resolv.conf if
      there is no /etc directory
    - list the set of features that curtin has for library users.
      users can now check the FEATURES list for a specific feature.
    - fix bug in argument parsing --set mykey=foo=bar
    - in-target: add '--capture' to in-target and special case target=/
    - support declaring json in --set argument via --set=json:...
    - add reporting function to allow calling a webhook endpoint
      with status of curtin install.
    - Allow partprobe to return 1, which is expected when no partition table
      exists
    - support storage config providing /dev/disk/by-dname links
    - enable setting of verbosity and showtrace via config file
    - drop python-parted dependency
    - swap: use fallocate if possible for much faster swap file creation
    - support network-config, where networking configuration is declared
      in curtin config that will be applied to the host.
    - support storage-config, allowing curtin to install and use many
      different storage configurations (LVM, bcache, btrfs...)

 -- Scott Moser <smoser@xxxxxxxxxx>  Tue, 19 Jul 2016 15:03:33 -0400

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

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https://bugs.launchpad.net/bugs/1551937

Title:
  lvm and multipath and xenial not happy together

Status in curtin:
  Fix Committed
Status in curtin package in Ubuntu:
  Fix Released
Status in curtin source package in Trusty:
  Fix Released
Status in curtin source package in Xenial:
  Fix Released

Bug description:
  [Impact]

   * MaaS deployments to systems with multipath configures cannot
     install Xenial releases due to a change in how multipath configures
     its friendly names.  On older releases (multipath-tools < 0.5.0)
     multipath-tools expects that the names of the devices will include
     names and parses the file with that expectation. However, on newer
     releases (multipath-tools >= 0.5.0) multipath-tools uses spaces to
     separate fields in the bindings file and fails if the device name
     includes spaces. 

     Curtin will detect the level of multipath-tools to be used in the
     target OS and adjusts how it generates device names for the binding
     file accordingly.
     
  [Test Case]

   * Install proposed curtin package and deploy custom storage
     configuration against a Power8 or similiar configured multipath
     system and select Xenial as the target OS.

    PASS: The multipath configured machine will successfully install
    both Xenial and Trusty.

    FAIL: The multipath configured machine will fail to install Xenial
    but will successfully install Trusty.

  [Regression Potential]

   * May impact users of systems with multipath storage configurations.

  
  [Original Description]

  tried deploy of xenial with curtin on a powerNV system.  the result was failure to mount the root, ending like this:
  Begin: Running /scripts/local-block ...   lvmetad is not active yet, using direc
  t activation during sysinit
    Volume group "mpath0" not found
    Cannot process volume group mpath0
  done.
  Begin: Running /scripts/local-block ...   lvmetad is not active yet, using direct activation during sysinit
    Volume group "mpath0" not found
    Cannot process volume group mpath0
  done.
  done.
  Gave up waiting for root device.  Common problems:
   - Boot args (cat /proc/cmdline)
     - Check rootdelay= (did the system wait long enough?)
     - Check root= (did the system wait for the right device?)
   - Missing modules (cat /proc/modules; ls /dev)
  ALERT!  /dev/mapper/mpath0-part2 does not exist.  Dropping to a shell!

  Related bugs:
   * bug 1429327: Boot from a unique, stable, multipath-dependent symlink
   * bug 1432062: multipath-tools-boot: support booting without user_friendly_names on devices with spaces in identifiers
   * bug 1552319: xenial kernel boot slow/timeout on power8 powerNV

  $ dpkg-query --show | egrep '(maas|curtin)'
  curtin-common   0.1.0~bzr359-0ubuntu1
  maas    1.9.1+bzr4541-0ubuntu1~trusty1
  maas-cli        1.9.1+bzr4541-0ubuntu1~trusty1
  maas-cluster-controller 1.9.1+bzr4541-0ubuntu1~trusty1
  maas-common     1.9.1+bzr4541-0ubuntu1~trusty1
  maas-dhcp       1.9.1+bzr4541-0ubuntu1~trusty1
  maas-dns        1.9.1+bzr4541-0ubuntu1~trusty1
  maas-provision  2.2.2-0ubuntu4
  maas-provision-common   2.2.2-0ubuntu4
  maas-proxy      1.9.1+bzr4541-0ubuntu1~trusty1
  maas-region-controller  1.9.1+bzr4541-0ubuntu1~trusty1
  maas-region-controller-min      1.9.1+bzr4541-0ubuntu1~trusty1
  python-curtin   0.1.0~bzr359-0ubuntu1
  python-django-maas      1.9.1+bzr4541-0ubuntu1~trusty1
  python-maas-client      1.9.1+bzr4541-0ubuntu1~trusty1
  python-maas-provision   2.2.2-0ubuntu4
  python-maas-provisioningserver  1.9.1+bzr4541-0ubuntu1~trusty1

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