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[Launchpad Bug Tracker <1581416@xxxxxxxxxxxxxxxxxx>]

This bug was fixed in the package cloud-init -
17.2-35-gf576b2a2-0ubuntu1~16.04.2

---------------
cloud-init (17.2-35-gf576b2a2-0ubuntu1~16.04.2) xenial-proposed; urgency=medium

  * cherry-pick 40e7738: GCE: fix reading of user-data that is not
    base64 encoded. (LP: #1752711)

cloud-init (17.2-35-gf576b2a2-0ubuntu1~16.04.1) xenial-proposed;
urgency=medium

  * New upstream snapshot. (LP: #1747059)
    - tests: add support for logs with lxd from snap and future lxd 3.
    - EC2: Fix get_instance_id called against cached datasource pickle.
    - cli: fix cloud-init status to report running when before result.json
    - net: accept network-config in netplan format for renaming interfaces
    - Fix ssh keys validation in ssh_util [Tatiana Kholkina]

 -- Chad Smith <chad.smith@xxxxxxxxxxxxx>  Thu, 01 Mar 2018 16:05:39
-0700

** Changed in: cloud-init (Ubuntu Xenial)
       Status: Fix Committed => Fix Released

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https://bugs.launchpad.net/bugs/1581416

Title:
  grub-legacy-ec2 installs files in /etc/kernel/kernel/post(inst|rm).d

Status in cloud-init package in Ubuntu:
  Fix Released
Status in cloud-init source package in Xenial:
  Fix Released
Status in cloud-init source package in Artful:
  Fix Released

Bug description:
  === Begin SRU Template ===
  [Impact]
  Packaging changes caused grub-legacy-ec2 package to install its
  kernel post-install and post-rm hooks into
     /etc/kernel/kernel/postinst.d
     /etc/kernel/kernel/postrm.d
  rather than
     /etc/kernel/postinst.d
     /etc/kernel/postrm.d

  The result was that kernel package installation or updates
  would not execute these scripts and the /boot/grub/menu.lst that
  was updated would not get updated.

  [Test Case]
  if [ ! -f lxc-proposed-snapshot ]; then
    wget https://git.launchpad.net/~smoser/cloud-init/+git/sru-info/plain/bin/lxc-proposed-snapshot
    chmod 755 lxc-proposed-snapshot
  fi

  $ ./lxc-proposed-snapshot --proposed --publish xenial xenial-proposed
  $ lxc launch xenial-proposed test-1581416
  $ sleep 10 ; echo wait for boot
  $ lxc exec test-1581416 -- apt-get update -q
  $ lxc exec test-1581416 -- apt-get install grub-legacy-ec2

  ## look at files in the package, verify the right directory.
  $ lxc exec test-1581416 -- dpkg-query -L grub-legacy-ec2 | grep kernel
  /etc/kernel/postinst.d/x-grub-legacy-ec2
  /etc/kernel/postrm.d/x-grub-legacy-ec2

  ## install a kernel make sure it does not fail.
  $ lxc exec test-1581416 -- apt-get install linux-image-virtual
  ...
  run-parts: executing /etc/kernel/postinst.d/x-grub-legacy-ec2 4.13.0-32-generic /boot/vmlinuz-4.13.0-32-generic
  ...

  ## Now verify that the menu.lst has the expected kernel that was installed.
  $ lxc exec test-1581416 -- grep vmlinuz /boot/grub/menu.lst
  # kernel /vmlinuz root=/dev/hda2 ro
  kernel      /boot/vmlinuz-4.13.0-32-generic root=LABEL=cloudimg-rootfs ro console=hvc0
  kernel      /boot/vmlinuz-4.13.0-32-generic root=LABEL=cloudimg-rootfs ro  single

  [Regression Potential]
  These scripts will now get executed at the times when kernel package
  hooks execute.  A failure of the script will bubble up and cause failure
  of dpkg or apt.

  [Other Info]
  Upstream commit at
    https://git.launchpad.net/cloud-init/commit/?id=f1246a1f8b

  === End SRU Template ===

  Hi,

  can't use apport, so reporting this via the web.

  $ lsb_release -rd
  Description:    Ubuntu 16.04 LTS
  Release:        16.04
  $ apt-cache policy grub-legacy-ec2
  grub-legacy-ec2:
    Installed: 0.7.7~bzr1212-0ubuntu1
    Candidate: 0.7.7~bzr1212-0ubuntu1
    Version table:
   *** 0.7.7~bzr1212-0ubuntu1 500
          500 http://de.archive.ubuntu.com/ubuntu xenial/main amd64 Packages
          500 http://de.archive.ubuntu.com/ubuntu xenial/main i386 Packages
          100 /var/lib/dpkg/status

  The debian/grub-legacy-ec2.install file seems to be wrong, files end
  up in

  $ dpkg -L grub-legacy-ec2  | grep /etc
  /etc
  /etc/kernel
  /etc/kernel/kernel
  /etc/kernel/kernel/postinst.d
  /etc/kernel/kernel/postinst.d/x-grub-legacy-ec2
  /etc/kernel/kernel/postrm.d
  /etc/kernel/kernel/postrm.d/x-grub-legacy-ec2

  where they will not be picked up by linux-image-* postinst scripts.

  Cheers
  Wolfgang

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