In subiquity image, mount additional squashfs in /media.

debian/changelog

@@ -1,3 +1,9 @@
+livecd-rootfs (2.521) UNRELEASED; urgency=medium
+
+  * In subiquity image, mount additional squashfs in /media.
+
+ -- Dimitri John Ledkov <xnox@ubuntu.com>  Wed, 11 Apr 2018 14:19:34 +0200
+
 livecd-rootfs (2.520) bionic; urgency=medium
 
   * Make lzma initramfs compression opt-in rather than opt-out, and do not

live-build/ubuntu-server/includes.binary/overlay/lib/systemd/system/local-fs.target.wants/media-filesystem.mount

@@ -0,0 +1 @@
+../media-filesystem.mount

live-build/ubuntu-server/includes.binary/overlay/lib/systemd/system/local-fs.target.wants/media-rack.lower.mount

@@ -0,0 +1 @@
+../media-rack.lower.mount

live-build/ubuntu-server/includes.binary/overlay/lib/systemd/system/local-fs.target.wants/media-rack.mount

@@ -0,0 +1 @@
+../media-rack.mount

live-build/ubuntu-server/includes.binary/overlay/lib/systemd/system/local-fs.target.wants/media-region.lower.mount

@@ -0,0 +1 @@
+../media-region.lower.mount

live-build/ubuntu-server/includes.binary/overlay/lib/systemd/system/local-fs.target.wants/media-region.mount

@@ -0,0 +1 @@
+../media-region.mount

live-build/ubuntu-server/includes.binary/overlay/lib/systemd/system/media-filesystem.mount

@@ -0,0 +1,5 @@
+[Mount]
+What=/cdrom/casper/filesystem.squashfs
+Where=/media/filesystem
+Type=squashfs
+Options=ro

live-build/ubuntu-server/includes.binary/overlay/lib/systemd/system/media-rack.lower.mount

@@ -0,0 +1,5 @@
+[Mount]
+What=/cdrom/casper/maas/maas-rack.squashfs
+Where=/media/rack.lower
+Type=squashfs
+Options=ro

live-build/ubuntu-server/includes.binary/overlay/lib/systemd/system/media-rack.mount

@@ -0,0 +1,9 @@
+[Unit]
+After=media-filesystem.mount
+After=media-rack.lower.mount
+
+[Mount]
+What=overlay
+Where=/media/rack
+Type=overlay
+Options=lowerdir=/media/rack.lower:/media/filesystem

live-build/ubuntu-server/includes.binary/overlay/lib/systemd/system/media-region.lower.mount

@@ -0,0 +1,5 @@
+[Mount]
+What=/cdrom/casper/maas/maas-region.squashfs
+Where=/media/region.lower
+Type=squashfs
+Options=ro

live-build/ubuntu-server/includes.binary/overlay/lib/systemd/system/media-region.mount

@@ -0,0 +1,10 @@
+[Unit]
+After=media-filesystem.mount
+After=media-rack.lower.mount
+After=media-region.lower.mount
+
+[Mount]
+What=overlay
+Where=/media/region
+Type=overlay
+Options=lowerdir=/media/region.lower:/media/rack.lower:/media/filesystem