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diff --git a/meta/classes/core-image.bbclass b/meta/classes/core-image.bbclass
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+# Common code for generating core reference images
+#
+# Copyright (C) 2007-2011 Linux Foundation
+
+LIC_FILES_CHKSUM = "file://${COREBASE}/LICENSE;md5=3f40d7994397109285ec7b81fdeb3b58 \
+                    file://${COREBASE}/meta/COPYING.MIT;md5=3da9cfbcb788c80a0384361b4de20420"
+
+# IMAGE_FEATURES control content of the core reference images
+# 
+# By default we install task-core-boot and task-base packages - this gives us
+# working (console only) rootfs.
+#
+# Available IMAGE_FEATURES:
+#
+# - apps-console-core
+# - x11-mini            - minimal environment for X11 server 
+# - x11-base            - X11 server + minimal desktop	
+# - x11-sato            - OpenedHand Sato environment
+# - x11-netbook         - Metacity based environment for netbooks
+# - apps-x11-core       - X Terminal, file manager, file editor
+# - apps-x11-games
+# - apps-x11-pimlico    - OpenedHand Pimlico apps
+# - tools-sdk           - SDK
+# - tools-debug         - debugging tools
+# - tools-profile       - profiling tools
+# - tools-testapps      - tools usable to make some device tests
+# - nfs-server          - NFS server (exports / over NFS to everybody)
+# - ssh-server-dropbear - SSH server (dropbear)
+# - ssh-server-openssh  - SSH server (openssh)
+# - debug-tweaks        - makes an image suitable for development
+#
+PACKAGE_GROUP_apps-console-core = "task-core-apps-console"
+PACKAGE_GROUP_x11-mini = "task-core-x11-mini"
+PACKAGE_GROUP_x11-base = "task-core-x11-base"
+PACKAGE_GROUP_x11-sato = "task-core-x11-sato"
+PACKAGE_GROUP_x11-netbook = "task-core-x11-netbook"
+PACKAGE_GROUP_apps-x11-core = "task-core-apps-x11-core"
+PACKAGE_GROUP_apps-x11-games = "task-core-apps-x11-games"
+PACKAGE_GROUP_apps-x11-pimlico = "task-core-apps-x11-pimlico"
+PACKAGE_GROUP_tools-debug = "task-core-tools-debug"
+PACKAGE_GROUP_tools-profile = "task-core-tools-profile"
+PACKAGE_GROUP_tools-testapps = "task-core-tools-testapps"
+PACKAGE_GROUP_tools-sdk = "task-core-sdk task-core-standalone-sdk-target"
+PACKAGE_GROUP_nfs-server = "task-core-nfs-server"
+PACKAGE_GROUP_ssh-server-dropbear = "task-core-ssh-dropbear"
+PACKAGE_GROUP_ssh-server-openssh = "task-core-ssh-openssh"
+PACKAGE_GROUP_package-management = "${ROOTFS_PKGMANAGE}"
+PACKAGE_GROUP_qt4-pkgs = "task-core-qt-demos"
+
+CORE_IMAGE_BASE_INSTALL = '\
+    task-core-boot \
+    task-base-extended \
+    \
+    ${CORE_IMAGE_EXTRA_INSTALL} \
+    '
+
+CORE_IMAGE_EXTRA_INSTALL ?= ""
+
+IMAGE_INSTALL ?= "${CORE_IMAGE_BASE_INSTALL}"
+
+X11_IMAGE_FEATURES  = "x11-base apps-x11-core package-management"
+ENHANCED_IMAGE_FEATURES = "${X11_IMAGE_FEATURES} apps-x11-games apps-x11-pimlico package-management"
+SATO_IMAGE_FEATURES = "${ENHANCED_IMAGE_FEATURES} x11-sato ssh-server-dropbear"
+
+inherit image
+
+# Create /etc/timestamp during image construction to give a reasonably sane default time setting
+ROOTFS_POSTPROCESS_COMMAND += "rootfs_update_timestamp ; "
+
+# Zap the root password if debug-tweaks feature is not enabled
+ROOTFS_POSTPROCESS_COMMAND += '${@base_contains("IMAGE_FEATURES", "debug-tweaks", "", "zap_root_password ; ",d)}'
+