Merge lp:~sergiusens/livecd-rootfs/snappyDevicePart into lp:livecd-rootfs

[Sergio Schvezov]

Using versioned kernel and initrd for generating assets and removing uneeded files from the device part

=== modified file 'live-build/ubuntu-core/hooks/500-move-kernel-to-device-tar.binary'
--- live-build/ubuntu-core/hooks/500-move-kernel-to-device-tar.binary	2015-06-25 11:36:42 +0000
+++ live-build/ubuntu-core/hooks/500-move-kernel-to-device-tar.binary	2015-07-08 14:46:59 +0000
@@ -14,41 +14,36 @@
 
 # cp files, we can't simply use tar --transform as it changes the symlink target
 (
- cd binary/boot/filesystem.dir 
+ cd binary/boot/filesystem.dir
 
- # for compatibility with current grub/u-d-f
- cp -ar --parent boot/vmlinu?-* boot/initrd.img-* boot/abi-* boot/System.map-* $TMPDIR/system/
- if [ -e vmlinu? ] && [ -e initrd.img ]; then
-     cp -ar --parent vmlinu? initrd.img $TMPDIR/system
- fi
  cp -ar --parent lib/modules/ $TMPDIR/system/
  cp -ar --parent lib/firmware/ $TMPDIR/system/
 
  # new assets handling
- # FIXME:
- # - how to keep version information (and do we care)
  if [ -f boot/vmlinu?-*.signed ]; then
-    cp -ar boot/vmlinu?-*.signed $TMPDIR/assets/vmlinuz
+    kernel=boot/vmlinu?-*.signed
  else
-    cp -ar boot/vmlinu?-* $TMPDIR/assets/vmlinuz
+    kernel=boot/vmlinu?-*
  fi
- cp -ar boot/initrd.img-* $TMPDIR/assets/initrd.img
+
+ initrd=boot/initrd.img-*
+
+ cp -ar "$initrd" $TMPDIR/assets/
+ cp -ar "$kernel" $TMPDIR/assets/
  cp -ar boot/abi-* boot/System.map-* $TMPDIR/assets/
 
  dtbs=$(find lib/firmware -type d -name 'device-tree' -print0)
  if [ -n "$dtbs" ]; then
     mv "$dtbs" $TMPDIR/assets/dtbs
  fi
-)
 
-# create hardware.yaml for u-boot
-# this assumes armh == u-boot
-# and all others grub
-(
-# common bits
+ # create hardware.yaml
+ # this assumes armh == u-boot
+ # and all others grub
+ # common bits
  cat > $TMPDIR/hardware.yaml << EOF
-kernel: assets/vmlinuz
-initrd: assets/initrd.img
+kernel: assets/$(basename "$kernel")
+initrd: assets/$(basename "$initrd")
 partition-layout: system-AB
 EOF