Support initrd

recipes-core/images/emlinux-image-base.bb

@@ -32,3 +32,6 @@ IMAGE_PREINSTALL:append = "\
 inherit image
 
 DEPENDS:class-sdk:append = " ${IMAGE_INSTALL}"
+
+INITRAMFS_RECIPE ?= "emlinux-initramfs-base"
+IMAGE_INITRD = "${INITRAMFS_RECIPE}"

recipes-initramfs/emlinux-initramfs/emlinux-initramfs-base.bb

@@ -0,0 +1,26 @@
+#
+# EMLinux initramfs base image
+#
+# Copyright Cybertrust Japan Co., Ltd.
+#
+# Authors:
+#  Hirotaka Motai <hirotaka.motai@miraclelinux.com>
+#
+# SPDX-License-Identifier: MIT
+#
+# The image will be deployed to:
+#   build/tmp/deploy/images/${MACHINE}/emlinux-initramfs-base-${DISTRO}-${MACHINE}-initrd.img
+#
+
+inherit initramfs
+
+# Debian packages that should be install into the system for building the
+# initramfs.
+INITRAMFS_PREINSTALL += " \
+	dmsetup \
+	systemd \
+"
+
+# Recipes that should be install into the initramfs build rootfs.
+INITRAMFS_INSTALL += " \
+"