[Bug 1880170] Re: SRU: Revert of initramfs package removal in KVM image

[Philip Roche]

** Description changed:

- We want to the revert of initramfs package removal in KVM image.
+ No packages marked for auto-removal should be present in a published
+ cloud image.
+ 
+ The current kvm binary hook in livecd-rootfs removes the packages
+ `initramfs-tools` and `busybox-initramfs`. This results in many packages
+ [1] being marked for auto-removal. These packages are still required in
+ the image and should not be marked for auto-removal.
+ 
+ The removal of initramfs-tools and busybox-initramfs was to avoid the
+ generation of initramfs in images that should boot initramfsless.
+ 
+ This requirement is obsolete now because the initramfsless boot handling
+ is now handled via setting GRUB_FORCE_PARTUUID in /etc/default/grub.d/40-force-partuuid.cfg.
  
  [Impact]
  
-  * We don't want any packages marked for auto-removal on a published kvm
- cloud image.
+  * No packages marked for auto-removal. This is a requirement for all
+ public cloud images.
  
  [Test Case]
  
-  * Perform livefs build with project ubuntu-base
-  * Boot *-disk-kvm.img using kvm 
-    * Confirm it boots
-    * Confirm there is no boot speed regression
+  * Perform livefs build with project ubuntu-base
+  * Boot *-disk-kvm.img using kvm
+    * Confirm it boots
+    * Confirm there is no boot speed regression
+    * Confirm that running `sudo apt-get autoremove` results in no packages being removed
+    * Verify that `GRUB_FORCE_PARTUUID` is set in /etc/default/grub.d/40-force-partuuid.cfg.
  
  [Regression Potential]
  
-  * Boot speed regression
-  * Unable to boot KVM image
+  * Boot speed regression
+  * Unable to boot KVM image
  
  [Other Info]
  
-  * Original bug filed against cloud-images @ https://bugs.launchpad.net/cloud-images/+bug/1875400
-  * MP already merged in to ubuntu/master @ https://code.launchpad.net/~philroche/livecd-rootfs/+git/livecd-rootfs/+merge/384105
-  * livecd-rootfs version 2.667 in groovy was uploaded with this patch and was verified
+  * Original bug filed against cloud-images @ https://bugs.launchpad.net/cloud-images/+bug/1875400
+  * MP already merged in to ubuntu/master @ https://code.launchpad.net/~philroche/livecd-rootfs/+git/livecd-rootfs/+merge/384105
+  * livecd-rootfs version 2.667 in groovy was uploaded with this patch and was verified
+ 
+ 
+ [1] apport apport-symptoms at bc bcache-tools bolt btrfs-progs byobu cryptsetup cryptsetup-bin cryptsetup-run dmeventd ethtool finalrd
+   fonts-ubuntu-console fwupd fwupd-signed git git-man htop initramfs-tools-bin klibc-utils kpartx landscape-common libaio1 libarchive13
+   libcurl3-gnutls libdevmapper-event1.02.1 liberror-perl libevent-2.1-7 libfl2 libfwupd2 libfwupdplugin1 libgcab-1.0-0 libgpgme11
+   libgudev-1.0-0 libgusb2 libisns0 libjson-glib-1.0-0 libjson-glib-1.0-common libklibc liblvm2cmd2.03 libmspack0 libreadline5
+   libsgutils2-2 libsmbios-c2 libtss2-esys0 liburcu6 libutempter0 libxmlb1 libxmlsec1 libxmlsec1-openssl libxslt1.1 lvm2 lxd-agent-loader
+   lz4 mdadm open-iscsi open-vm-tools patch pollinate python3-apport python3-automat python3-click python3-colorama python3-constantly
+   python3-debconf python3-debian python3-hamcrest python3-hyperlink python3-incremental python3-newt python3-problem-report python3-pyasn1
+   python3-pyasn1-modules python3-service-identity python3-systemd python3-twisted python3-twisted-bin python3-zope.interface run-one
+   screen sg3-utils sosreport thin-provisioning-tools tmux tpm-udev update-notifier-common xfsprogs zerofree

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https://bugs.launchpad.net/bugs/1880170

Title:
  SRU: Revert of initramfs package removal in KVM image

Status in livecd-rootfs package in Ubuntu:
  New

Bug description:
  No packages marked for auto-removal should be present in a published
  cloud image.

  The current kvm binary hook in livecd-rootfs removes the packages
  `initramfs-tools` and `busybox-initramfs`. This results in many
  packages [1] being marked for auto-removal. These packages are still
  required in the image and should not be marked for auto-removal.

  The removal of initramfs-tools and busybox-initramfs was to avoid the
  generation of initramfs in images that should boot initramfsless.

  This requirement is obsolete now because the initramfsless boot handling
  is now handled via setting GRUB_FORCE_PARTUUID in /etc/default/grub.d/40-force-partuuid.cfg.

  [Impact]

   * No packages marked for auto-removal. This is a requirement for all
  public cloud images.

  [Test Case]

   * Perform livefs build with project ubuntu-base
   * Boot *-disk-kvm.img using kvm
     * Confirm it boots
     * Confirm there is no boot speed regression
     * Confirm that running `sudo apt-get autoremove` results in no packages being removed
     * Verify that `GRUB_FORCE_PARTUUID` is set in /etc/default/grub.d/40-force-partuuid.cfg.

  [Regression Potential]

   * Boot speed regression
   * Unable to boot KVM image

  [Other Info]

   * Original bug filed against cloud-images @ https://bugs.launchpad.net/cloud-images/+bug/1875400
   * MP already merged in to ubuntu/master @ https://code.launchpad.net/~philroche/livecd-rootfs/+git/livecd-rootfs/+merge/384105
   * livecd-rootfs version 2.667 in groovy was uploaded with this patch and was verified

  
  [1] apport apport-symptoms at bc bcache-tools bolt btrfs-progs byobu cryptsetup cryptsetup-bin cryptsetup-run dmeventd ethtool finalrd
    fonts-ubuntu-console fwupd fwupd-signed git git-man htop initramfs-tools-bin klibc-utils kpartx landscape-common libaio1 libarchive13
    libcurl3-gnutls libdevmapper-event1.02.1 liberror-perl libevent-2.1-7 libfl2 libfwupd2 libfwupdplugin1 libgcab-1.0-0 libgpgme11
    libgudev-1.0-0 libgusb2 libisns0 libjson-glib-1.0-0 libjson-glib-1.0-common libklibc liblvm2cmd2.03 libmspack0 libreadline5
    libsgutils2-2 libsmbios-c2 libtss2-esys0 liburcu6 libutempter0 libxmlb1 libxmlsec1 libxmlsec1-openssl libxslt1.1 lvm2 lxd-agent-loader
    lz4 mdadm open-iscsi open-vm-tools patch pollinate python3-apport python3-automat python3-click python3-colorama python3-constantly
    python3-debconf python3-debian python3-hamcrest python3-hyperlink python3-incremental python3-newt python3-problem-report python3-pyasn1
    python3-pyasn1-modules python3-service-identity python3-systemd python3-twisted python3-twisted-bin python3-zope.interface run-one
    screen sg3-utils sosreport thin-provisioning-tools tmux tpm-udev update-notifier-common xfsprogs zerofree

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