On 12/28/2011 03:54 PM, Darren Hart wrote:
<I sent this to the yocto list by mistake, forwarding here for comment>
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<dvh...@linux.intel.com>
---
meta/classes/image_types.bbclass | 10 ++++++++--
1 files changed, 8 insertions(+), 2 deletions(-)
diff --git a/meta/classes/image_types.bbclass b/meta/classes/image_types.bbclass
index 6893e38..ebff0ba 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}"
This merged as is to OE-Core.
Based on other emails, I will expect some update patch to address
Andrea's comments.
Thanks
Sau!
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