add block-extroot, a package for using an external filesystem as rootfs (patch by cshore)

SVN-Revision: 19880

package/block-extroot/Makefile

@@ -0,0 +1,64 @@
+#
+# Copyright (C) 2009 OpenWrt.org
+# Copyright (C) 2010 Vertical Communications
+#
+# This is free software, licensed under the GNU General Public License v2.
+# See /LICENSE for more information.
+#
+
+include $(TOPDIR)/rules.mk
+
+PKG_NAME:=block-extroot
+PKG_VERSION:=0.0.1
+PKG_RELEASE:=1
+
+PKG_BUILD_DIR := $(BUILD_DIR)/$(PKG_NAME)
+
+include $(INCLUDE_DIR)/package.mk
+
+define Package/block-extroot/Default
+  SECTION:=utils
+  CATEGORY:=Utilities
+  TITLE:=root filesystem on secondary storage
+  SUBMENU:=disc
+endef
+
+define Package/block-extroot
+  $(call Package/block-extroot/Default)
+  MENU:=1
+  DEPENDS:=+block-mount @PACKAGE_kmod-ide-core||PACKAGE_kmod-usb-storage||PACKAGE_kmod-mmc
+endef
+
+define Package/block-extroot/config
+	source "$(SOURCE)/Config.in"
+endef
+
+define Package/block-extroot/description
+  Based on the moduluarized preinit and firstboot, adds the option to have
+  the root filesystem on storage other than the jffs or the boot root device.
+  For a squashfs image this package must be installed into the image, not as
+  a package to add later.
+endef
+
+define Build/Prepare
+endef
+
+define Build/Configure
+endef
+
+define Build/Compile
+endef
+
+define Package/block-extroot/install
+	$(INSTALL_DIR) $(1)/lib/functions
+	$(INSTALL_DATA) ./files/extmount.sh $(1)/lib/functions/
+	$(INSTALL_DIR) $(1)/lib/preinit
+	$(INSTALL_DATA) ./files/50_determine_usb_root $(1)/lib/preinit/
+	$(INSTALL_DATA) ./files/60_pivot_usb_root $(1)/lib/preinit/
+	$(INSTALL_DIR) $(1)/lib/preinit
+	echo "extroot_settle_time=\"$(CONFIG_EXTROOT_SETTLETIME)\"" >$(1)/lib/preinit/00_extroot.conf
+	$(INSTALL_DIR) $(1)/overlay
+endef
+
+$(eval $(call BuildPackage,block-extroot))
+