[Bug 1568918] Re: Add support for lts-xenial kernel flavours in trusty

[Scott Moser]

verified amd64 trusty daily from 20160510
$ arch=amd64
$ burl=http://cdimage.ubuntu.com/ubuntu-server/trusty/daily/20160510/
$ wget "$burl/trusty-server-$arch.iso"

$ md5sum trusty-server-$arch.iso
40374d161b58d72001776f99b3b9fb44  trusty-server-amd64.iso


$ qemu-img create -f qcow2 $arch-iso-disk.img 4G
$ qemu-system-x86_64 -enable-kvm -m 1024 -vnc :8 \
   -device virtio-net-pci,netdev=net00 -netdev type=user,id=net00 \
   -drive if=virtio,file=$arch-iso-disk.img,cache=unsafe \
   -cdrom trusty-server-$arch.iso -no-reboot

## navigated through curses install over vnc, picking picking default
## wherever possible.  system shut down after install, then

$ mv $arch-iso-disk.img $arch-iso-disk.img.pristine
$ chmod ugo-w $arch-iso-disk.img.pristine
$ qemu-img create -f qcow2 -b $arch-iso-disk.img.pristine $arch-iso-disk.img
$ qemu-system-x86_64 -enable-kvm -m 1024 -vnc :8 \
   -device virtio-net-pci,netdev=net00 -netdev type=user,id=net00 \
   -drive if=virtio,file=$arch-iso-disk.img,cache=unsafe

$ uname -a
Linux ubuntu 4.4.0-22-generic #39~14.04.1-Ubuntu SMP Thu May 5 19:19:06 UTC 2016 x86_64 x86_64 x86_64 GNU
/Linux
$ uname -r
4.4.0-22-generic
$ lsb_release -sc
trusty
$ dpkg -S /boot/vmlinu?-$(uname -r)
linux-image-4.4.0-22-generic: /boot/vmlinuz-4.4.0-22-generic

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https://bugs.launchpad.net/bugs/1568918

Title:
  Add support for lts-xenial kernel flavours in trusty

Status in maas-images:
  Confirmed
Status in Ubuntu CD Images:
  Fix Released
Status in debian-installer package in Ubuntu:
  Invalid
Status in livecd-rootfs package in Ubuntu:
  Invalid
Status in debian-installer source package in Trusty:
  Fix Committed
Status in livecd-rootfs source package in Trusty:
  Confirmed

Bug description:
  Subject says it all. We need d-i to support installing the lts-xenial
  kernel, as we did with the lts backports in precise.

  Test-case would be to try the xenial-* installers to make sure they
  install the right kernel (and at all!), and to test the non-vivid
  variants to make sure they didn't regress in installing the proper
  kernels.

  Related bugs:
   * bug 1524366:  Add support for lts-wily kernel flavours in trusty 
   * bug 1511497: [maas] No hwe-w kernel for 14.04

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