bitbake.conf: Add support for cpio and cpio.gz image formats.

* Required to create initramfs bundles.
* Single image can be used both as rootfs archive to expand to some media
and as initrd (initramfs-style). In the latter case, "rdinit" kernel param
should be used instead of "init". See Documentation/filesystems/ramfs-rootfs-initramfs.txt
for more info.

diff --git a/conf/bitbake.conf b/conf/bitbake.conf
index 6ddf8ec..96ce7f2 100644 (file)
--- a/conf/bitbake.conf
+++ b/conf/bitbake.conf
@@ -196,6 +196,8 @@ IMAGE_CMD_squashfs-lzma = "mksquashfs-lzma ${IMAGE_ROOTFS} ${DEPLOY_DIR_IMAGE}/$
 IMAGE_CMD_tar = "cd ${IMAGE_ROOTFS} && tar -jcvf ${DEPLOY_DIR_IMAGE}/${IMAGE_NAME}.rootfs.tar.bz2 ."
 IMAGE_CMD_tar.gz = "cd ${IMAGE_ROOTFS} && tar -zcvf ${DEPLOY_DIR_IMAGE}/${IMAGE_NAME}.rootfs.tar.gz ."
 IMAGE_CMD_tar.bz2 = "cd ${IMAGE_ROOTFS} && tar -jcvf ${DEPLOY_DIR_IMAGE}/${IMAGE_NAME}.rootfs.tar.bz2 ."
+IMAGE_CMD_cpio = "cd ${IMAGE_ROOTFS} && (find . | cpio -o -H newc >${DEPLOY_DIR_IMAGE}/${IMAGE_NAME}.rootfs.cpio)"
+IMAGE_CMD_cpio.gz = "cd ${IMAGE_ROOTFS} && (find . | cpio -o -H newc | gzip -c -9 >${DEPLOY_DIR_IMAGE}/${IMAGE_NAME}.rootfs.cpio.gz)"
 EXTRA_IMAGECMD = ""
 EXTRA_IMAGECMD_jffs2 = "--pad --little-endian --eraseblock=0x40000"
 EXTRA_IMAGECMD_squashfs = "-le -b 16384"