Import patches-unapplied version 2.441.2 to ubuntu/zesty-proposed

Imported using git-ubuntu import.

Changelog parent: 170a7577de

New changelog entries:
  * The ubuntu-server:live should use a casper-based initramfs to work
    correctly. (LP: #1682460)

debian/changelog

@@ -1,3 +1,10 @@
+livecd-rootfs (2.441.2) zesty; urgency=medium
+
+  * The ubuntu-server:live should use a casper-based initramfs to work
+    correctly. (LP: #1682460)
+
+ -- Mathieu Trudel-Lapierre <cyphermox@ubuntu.com>  Tue, 18 Apr 2017 09:56:31 -0400
+
 livecd-rootfs (2.441.1) zesty; urgency=medium
 
   * Setup kernel properly for ubuntu-server:live; we *do* want to build

live-build/auto/config

@@ -135,14 +135,17 @@ case $IMAGEFORMAT in
 		;;
 
 	plain)
-		OPTS="${OPTS:+$OPTS }--initramfs none --chroot-filesystem $IMAGEFORMAT"
+		INITRAMFS_TYPE=none
 		case $PROJECT:$SUBPROJECT in
 			ubuntu-server:live)
+				add_package live lupin-casper
+				INITRAMFS_TYPE=auto
 				;;
 			*)
 				PREINSTALLED=true
 				;;
 		esac
+		OPTS="${OPTS:+$OPTS }--initramfs $INITRAMFS_TYPE --chroot-filesystem $IMAGEFORMAT"
 		;;
 
 	*)