export $NOW in BuildLiveCD and use that var inside Ubuntu Touch builds to create /var/log/installer/media-info

BuildLiveCD

@@ -129,6 +129,7 @@ for STE in $SUITES; do
 	NOW=${NOW}.$n
     fi
     NOW=${NOW}
+    export NOW
     LOG=${PUBDIR}${NOW}/livecd-${NOW}-${ARCH}.out
 
     rm -f ${PUBDIR}latest

debian/changelog

@@ -1,3 +1,10 @@
+livecd-rootfs (2.150) UNRELEASED; urgency=low
+
+  * export $NOW in BuildLiveCD so we have it available in live-build
+  * create a build stamp in /var/log/installer/media-info on Ubuntu Touch images
+
+ -- Oliver Grawert <ogra@ubuntu.com>  Wed, 26 Jun 2013 11:32:31 +0200
+
 livecd-rootfs (2.149) saucy; urgency=low
 
   * set QT_SELECT=qt5 in touch image environment

live-build/auto/build

@@ -235,6 +235,12 @@ deb file:/var/lib/preinstalled-pool/ $LB_DISTRIBUTION $LB_PARENT_ARCHIVE_AREAS
 			> chroot/etc/apt/sources.list
 		rm chroot/etc/apt/sources.list.preinstall chroot/etc/apt/sources.list.orig
 	fi
+	if [ "$PROJECT" = "ubuntu-touch" ] && [ "$ARCH" = "armhf" ]; then
+		INFO_DESC="$(lsb_release -d -s)"
+
+		mkdir -p chroot/var/log/installer
+		echo "$INFO_DESC - $ARCH ($NOW)" >chroot/var/log/installer/media-info
+	fi
 
 	echo "===== Checking size of /usr/share/doc ====="
 	echo BEGIN docdirs