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[Launchpad Bug Tracker <1792905@xxxxxxxxxxxxxxxxxx>]

This bug was fixed in the package cloud-initramfs-tools - 0.43ubuntu1

---------------
cloud-initramfs-tools (0.43ubuntu1) cosmic; urgency=medium

  [ Robert Jennings ]
  * copymods: Take ownership of lib/modules (LP: #1792905)
  * debian/control: Update Vcs-* to point to git.

 -- Scott Moser <smoser@xxxxxxxxxx>  Thu, 20 Sep 2018 08:43:53 -0400

** Changed in: cloud-initramfs-tools (Ubuntu Cosmic)
       Status: Confirmed => Fix Released

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https://bugs.launchpad.net/bugs/1792905

Title:
  [2.5] iSCSI systemd services fails and blocks for 1 min 30 seconds

Status in cloud-images:
  Triaged
Status in MAAS:
  Triaged
Status in cloud-initramfs-tools package in Ubuntu:
  Fix Released
Status in livecd-rootfs package in Ubuntu:
  Fix Committed
Status in open-iscsi package in Ubuntu:
  Confirmed
Status in cloud-initramfs-tools source package in Xenial:
  Confirmed
Status in livecd-rootfs source package in Xenial:
  Invalid
Status in open-iscsi source package in Xenial:
  Confirmed
Status in cloud-initramfs-tools source package in Bionic:
  Confirmed
Status in livecd-rootfs source package in Bionic:
  Fix Committed
Status in open-iscsi source package in Bionic:
  Confirmed
Status in cloud-initramfs-tools source package in Cosmic:
  Fix Released
Status in livecd-rootfs source package in Cosmic:
  Fix Committed
Status in open-iscsi source package in Cosmic:
  Confirmed

Bug description:
  [Impact]

   * Affects environments where the base image is read-only but kernel
  modules are copied from the initramfs to the real root via cloud-
  initramfs-copymods package.

   * This affects users of our stable release images available from http
  ://cloud-images.ubuntu.com.

   * The attached fixes ensure /lib/modules always exists by creating it
  explicitly instead of relying on it to come from a package.

  [Test Case]

   * Download http://cloud-images.ubuntu.com/bionic/current/bionic-
  server-cloudimg-amd64.squashfs

   * Unpack it via `sudo unsquashfs bionic-server-cloudimg-
  amd64.squashfs`

   * Inspect the unpacked root filesystem and find that '/lib/modules'
  is missing.

   * Install local build scripts as described at
  https://github.com/chrisglass/ubuntu-old-fashioned (note: you will
  need ubuntu-old-fashioned master for cosmic)

  * Re-build the images using the updated livecd-rootfs package.

  * Unpack the resulting livecd.ubuntu-cpc.squashfs artifact using
  unsquashfs again.

  * Inspect the unpacked root filesystem and find that '/lib/modules'
  exists.

  * It is pure luck that package purges which are done analogously in
  Cosmic image builds do not remove '/lib/modules', hence this fix is
  introduced there, as well.

  * Xenial is not affected.

  * Test builds were carried out for Cosmic and Bionic with the expected
  results.

  [Regression Potential]

   * This is a fix to a regression. The existence of the directory had
  previously been ensured, but the mkdir call got lost in recent re-
  factoring. See also:

  https://bazaar.launchpad.net/~ubuntu-core-dev/livecd-rootfs/bionic-
  proposed/revision/1678

  https://bazaar.launchpad.net/~ubuntu-core-dev/livecd-
  rootfs/trunk/revision/1681

   * Packaging tools should not take offense at the existence of a
  directory, even if it was not part of a package. So potential for
  unforseeable regressions is very low.

  ===ORIGINAL BUG DESCRIPTION===

  Let me first start with saying MAAS is *not* using iSCSI anymore and
  is *NOT* in this case either.

  For some reason now using enlistment, commissioning, and deploying the
  ephemeral environment will block for 1 min 30 seconds waiting for the
  iSCSI daemon to succeed, which it never does.

  This increases the boot time drastically.

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