Merge ~ken-vandine/ubuntu-images:mantic into ubuntu-images:mantic

[Ken VanDine]

Added just enough casper bits to pause shutdown to unmount installation media.

Added just enough casper bits to pause shutdown to unmount installation media.

Note: This does require some new files from https://github.com/canonical/ubuntu-core-desktop/tree/installer_builder

[Łukasz Zemczak (sil2100)]

review: Approve

diff --git a/ubuntu-core-desktop-pc-amd64.yaml b/ubuntu-core-desktop-pc-amd64.yaml
index 20dcddc..5378f49 100644
--- a/ubuntu-core-desktop-pc-amd64.yaml
+++ b/ubuntu-core-desktop-pc-amd64.yaml
@@ -57,8 +57,15 @@ customization:
         destination: /autoinstall.yaml
       - source: pc.img.xz
         destination: /cdrom/casper/pc.img.xz
+      - source: casper.service
+        destination: /lib/systemd/system/casper.service
+      - source: casper-stop
+        destination: /sbin/casper-stop
+      - source: casper-enable
+        destination: /sbin/casper-enable
     execute:
       - path: /usr/bin/systemd-machine-id-setup
+      - path: /sbin/casper-enable
 artifacts:
   img:
     -