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authorDarren Hart <dvhart@linux.intel.com>2011-12-21 00:24:46 -0800
committerRichard Purdie <richard.purdie@linuxfoundation.org>2012-01-03 12:10:45 +0000
commit849b9aadae41d9b6777787213556bc538858b49a (patch)
tree780a7330c51e24d2c4622ec211216f2749aaef2c /meta
parent1db9313121cbc2db00843a4afcf5c26b5cb966ac (diff)
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image_types: Ensure /init exists for cpio rootfs archives
In order for the kernel to accept an initramfs as a rootfs, it must have /init - even if it is an empty file. Touch /init to ensure it exists for cpio and cpio.gz image types. When used with initrd and rootfs=/dev/ram0, this allows the cpio and cpio.gz images to be used as the rootfs. Signed-off-by: Darren Hart <dvhart@linux.intel.com>
Diffstat (limited to 'meta')
-rw-r--r--meta/classes/image_types.bbclass10
1 files changed, 8 insertions, 2 deletions
diff --git a/meta/classes/image_types.bbclass b/meta/classes/image_types.bbclass
index 6893e3805..ebff0ba60 100644
--- a/meta/classes/image_types.bbclass
+++ b/meta/classes/image_types.bbclass
@@ -110,8 +110,14 @@ IMAGE_CMD_tar = "cd ${IMAGE_ROOTFS} && tar -cvf ${DEPLOY_DIR_IMAGE}/${IMAGE_NAME
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_tar.xz = "cd ${IMAGE_ROOTFS} && tar --xz -cvf ${DEPLOY_DIR_IMAGE}/${IMAGE_NAME}.rootfs.tar.xz ."
-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)"
+IMAGE_CMD_cpio () {
+ touch ${IMAGE_ROOTFS}/init
+ cd ${IMAGE_ROOTFS} && (find . | cpio -o -H newc >${DEPLOY_DIR_IMAGE}/${IMAGE_NAME}.rootfs.cpio)
+}
+IMAGE_CMD_cpio.gz () {
+ touch ${IMAGE_ROOTFS}/init
+ cd ${IMAGE_ROOTFS} && (find . | cpio -o -H newc | gzip -c -9 >${DEPLOY_DIR_IMAGE}/${IMAGE_NAME}.rootfs.cpio.gz)
+}
IMAGE_CMD_cpio.xz = "type cpio >/dev/null; cd ${IMAGE_ROOTFS} && (find . | cpio -o -H newc | xz -c ${XZ_COMPRESSION_LEVEL} --check=${XZ_INTEGRITY_CHECK} > ${DEPLOY_DIR_IMAGE}/${IMAGE_NAME}.rootfs.cpio.xz) ${EXTRA_IMAGECMD}"
IMAGE_CMD_cpio.lzma = "type cpio >/dev/null; cd ${IMAGE_ROOTFS} && (find . | cpio -o -H newc | xz --format=lzma -c ${XZ_COMPRESSION_LEVEL} --check=${XZ_INTEGRITY_CHECK} >${DEPLOY_DIR_IMAGE}/${IMAGE_NAME}.rootfs.cpio.lzma) ${EXTRA_IMAGECMD}"