armhf & arm64 image do not have cloud-init grub customizations

[Dimitri John Ledkov]

[Impact]

 * armhf & arm64 images do not contain cpc image customizations for grub.

   Specifically they do not have

   /etc/default/grub.d/50-cloudimg-settings.cfg

   Which disables "quiet splash", removes timeouts, enables serial consoles.

[Test Plan]

 * Boot arm64 cloud-image
 * cat /proc/cmdline => check that "quiet splash" is not present
 * ls /etc/default/grub.d/ => check that cloudimg-settings.cfg is there

[Where problems could occur]

 * Previously 999-cpc-fixes was only executed on i386 & amd64, thus care needs to be taken to ensure that none of x86 specific stuff is introduced. I.e. dpkg-reconfigure of grub-pc and things about menu.lst.

[John Chittum (jchittum)]

rcj and I had just been discussing this in relation to a new arm64 image.

We are currently re-enabling the file for EC2 arm64 in our EC2 specific code. I took the workaround from our EC2 and implemented in our test image. We agreed that we'll need to get 999-cpc-fixes worked out more.

The code that writes the mentioned file is:

https://git.launchpad.net/livecd-rootfs/tree/live-build/ubuntu-cpc/hooks.d/chroot/999-cpc-fixes.chroot#n189

what everything from 125 to 189 is where I needed to get some more guidance to ensure everything would work on arm properly.

[Launchpad Janitor (janitor)]

This bug was fixed in the package livecd-rootfs - 2.721

---------------
livecd-rootfs (2.721) impish; urgency=medium

  [ Dimitri John Ledkov ]
  * 999-cpc-fixes: enable more code on grub2 armhf & arm64 (LP: #1925780)
  * Add support for generic preinstalled images. LP: #1923832
  * Change iptables calls, to query rules and quickly check that
    connectivity works after transparent proxy has been installed. LP:
    #1917920
  * magic-proxy: replace http.client with urllib calls
  * buildd: Re-enable merged /usr by default, as it is now required

  [ Michael Hudson-Doyle ]
  * remove the workaround for bug #1893818

  [ Łukasz 'sil2100' Zemczak ]
  * Start using the ubuntu-server-raspi seeds for preinstalled raspi server
    images, similarly to how it's done for desktop-preinstalled images.
  * Drop the unused imx6 support.

 -- Dimitri John Ledkov <email address hidden> Wed, 05 May 2021 19:08:21 +0100