[Bug 1377308] [NEW] booting cloud image without initramfs broken

[Scott Moser]

Public bug reported:

Booting without a initramfs was broken by the cloud-init change for
bug 1377005 (http://pad.lv/1377005).

This affects arm guests where a bootloader is not used that would load
kernel and initramfs.

There are 2 workarounds:
a.) remove the offensive code
  sudo mount-image-callback ubuntu.img -- \
     sh -c 'f="$MOUNTPOINT/etc/init/cloud-init-local.conf";
            sed -e "/^start on/s/ and mounted .*//" -i.dist $f &&
            diff -u $f.dist $f'

b.) register and boot with an initramfs
  This is done by
   i.) getting the initramfs out of the image:
     sudo mount-image-callback ubuntu.img -- \
       sh -c 'cp $MOUNTPOINT/boot/initrd* . && chmod ugo+r initrd*'
   ii.) upload the initramfs to glance
     glance image-create --name=ubuntu-ramdisk --public \
        --container-format ari --disk-format ari < initrd*
     record the ramdisk id
   iii.) register with --property ramdisk_id=$RAMDISK_ID
     normally for "ami" style images on arm, the user had been
     uploading with --property kernel_id=<kernel_id>.
     now, you need to upload with:
       glance image-create --name="$NAME" \
          --public --container-format ami --disk-format ami \
          --property "kernel_id=$KERNEL_ID" \
          --property "ramdisk_id=$RAMDISK_ID" \ < ubuntu.img

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: cloud-init 0.7.5-0ubuntu1.2
ProcVersionSignature: User Name 3.13.0-36.63-generic 3.13.11.6
Uname: Linux 3.13.0-36-generic aarch64
ApportVersion: 2.14.1-0ubuntu3.4
Architecture: arm64
Date: Thu Jan  1 00:02:09 1970
Ec2AMI: ami-00000007
Ec2AMIManifest: FIXME
Ec2AvailabilityZone: nova
Ec2InstanceType: m1.5GB
Ec2Kernel: aki-00000005
Ec2Ramdisk: ari-00000003
PackageArchitecture: all
ProcEnviron:
 TERM=screen
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: cloud-init
UpgradeStatus: No upgrade log present (probably fresh install)
mtime.conffile..etc.init.cloud.init.local.conf: 2014-10-03T19:49:16.813801

** Affects: cloud-init
     Importance: High
         Status: Triaged

** Affects: cloud-init (Ubuntu)
     Importance: High
         Status: Triaged


** Tags: apport-bug arm64 ec2-images trusty

** Also affects: cloud-init
   Importance: Undecided
       Status: New

** Changed in: cloud-init (Ubuntu)
       Status: New => Triaged

** Changed in: cloud-init
       Status: New => Triaged

** Changed in: cloud-init
   Importance: Undecided => High

** Changed in: cloud-init (Ubuntu)
   Importance: Undecided => High

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https://bugs.launchpad.net/bugs/1377308

Title:
  booting cloud image without initramfs broken

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