bootimg: Adding a rootfs to the disk image

git-svn-id: https://svn.o-hand.com/repos/poky/trunk@5172 311d38ba-8fff-0310-9ca6-ca027cbcb966

meta/classes/bootimg.bbclass

@@ -23,7 +23,7 @@ HDDDIR = "${S}/hdd/boot"
 ISODIR = "${S}/cd/isolinux"
 
 BOOTIMG_VOLUME_ID   ?= "oe"
-BOOTIMG_EXTRA_SPACE ?= "64"
+BOOTIMG_EXTRA_SPACE ?= "512"
 
 # Get the build_syslinux_cfg() function from the syslinux class
 
@@ -41,6 +41,10 @@ build_boot_bin() {
     		install -m 0644 ${INITRD} ${HDDDIR}/initrd
 	fi
 
+	if [ -n "${ROOTFS}" ] && [ -s "${ROOTFS}" ]; then 
+    		install -m 0644 ${ROOTFS} ${HDDDIR}/rootfs.img
+	fi
+
 	install -m 444 ${STAGING_DATADIR_NATIVE}/syslinux/ldlinux.sys \
 	${HDDDIR}/ldlinux.sys