del-image-minimal: Add initial version.

del-image-minimal is the command line non graphical busybox based minimal
root filesystem for Digi Embedded Linux.

It uses a base task-del-core task, and defines core-ssh-dropbear as image
feature. It also will default to using shadow passwords unless
debug-tweak is selected in which case root can log in with an empty
password.

Signed-off-by: Alex Gonzalez <alex.gonzalez@digi.com>

meta-digi-arm/recipes-core/images/del-image-minimal.bb

@@ -3,7 +3,7 @@
 #
 DESCRIPTION = "DEL busybox based image (non graphical)."
 
-IMAGE_INSTALL = "task-core-boot ${ROOTFS_PKGMANAGE_BOOTSTRAP} ${CORE_IMAGE_EXTRA_INSTALL}"
+IMAGE_INSTALL = "task-del-core ${ROOTFS_PKGMANAGE_BOOTSTRAP} ${CORE_IMAGE_EXTRA_INSTALL}"
 
 IMAGE_LINGUAS = " "
 
@@ -11,6 +11,20 @@ LICENSE = "MIT"
 
 inherit core-image
 
+IMAGE_FEATURES = "core-ssh-dropbear"
+
+# Adding debug-tweaks will enable empty password login.
+# Note that adding debug-tweaks to EXTRA_IMAGE_FEATURES will not
+# allow for empty password logins.
+#IMAGE_FEATURES =+ "debug-tweaks"
+
+# core-image disables the root password if debug-tweak is not enabled.
+# This override will use the shadow file instead.
+zap_root_password () {
+        sed 's%^root:[^:]*:%root:x:%' < ${IMAGE_ROOTFS}/etc/passwd >${IMAGE_ROOTFS}/etc/passwd.new
+        mv ${IMAGE_ROOTFS}/etc/passwd.new ${IMAGE_ROOTFS}/etc/passwd
+}
+
 IMAGE_ROOTFS_SIZE = "8192"
 
 # remove not needed ipkg informations

meta-digi-arm/recipes-core/tasks/task-del-core.bb

@@ -0,0 +1,50 @@
+#
+# Copyright (C) 2012 Digi International.
+#
+DESCRIPTION = "Core task for DEL image"
+LICENSE = "MIT"
+LIC_FILES_CHKSUM = "file://${COREBASE}/LICENSE;md5=3f40d7994397109285ec7b81fdeb3b58"
+PACKAGE_ARCH = "${MACHINE_ARCH}"
+DEPENDS = "virtual/kernel"
+ALLOW_EMPTY = "1"
+PR = "r0"
+
+#
+# Set by the machine configuration with packages essential for device bootup
+#
+MACHINE_ESSENTIAL_EXTRA_RDEPENDS ?= ""
+MACHINE_ESSENTIAL_EXTRA_RRECOMMENDS ?= ""
+
+# Distro can override the following VIRTUAL-RUNTIME providers:
+VIRTUAL-RUNTIME_dev_manager ?= ""
+VIRTUAL-RUNTIME_login_manager ?= "tinylogin"
+VIRTUAL-RUNTIME_passwd_manager ?= "shadow"
+VIRTUAL-RUNTIME_init_manager ?= "sysvinit"
+VIRTUAL-RUNTIME_initscripts ?= "initscripts"
+VIRTUAL-RUNTIME_keymaps ?= "keymaps"
+
+PACKAGES = "\
+	task-del-core \
+	task-del-core-dbg \
+	task-del-core-dev \
+    "
+
+RDEPENDS_task-del-core = "\
+    base-files \
+    base-passwd \
+    busybox \
+    ${VIRTUAL-RUNTIME_passwd_manager} \
+    ${VIRTUAL-RUNTIME_initscripts} \
+    ${@base_contains("MACHINE_FEATURES", "keyboard", "${VIRTUAL-RUNTIME_keymaps}", "", d)} \
+    modutils-initscripts \
+    netbase \
+    ${VIRTUAL-RUNTIME_login_manager} \
+    ${VIRTUAL-RUNTIME_init_manager} \
+    ${VIRTUAL-RUNTIME_dev_manager} \
+    ${VIRTUAL-RUNTIME_update-alternatives} \
+    ${MACHINE_ESSENTIAL_EXTRA_RDEPENDS}"
+
+RRECOMMENDS_task-del-core = "\
+    ${MACHINE_ESSENTIAL_EXTRA_RRECOMMENDS}"
+
+