On 12/30/2011 12:25 AM, Andrea Adami wrote: > On Thu, Dec 29, 2011 at 12:54 AM, Darren Hart <[email protected]> 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. > > Why didn't you add the init to cpio.xz and cpio.lzma? > Any special reason?
No reason, just missed them I guess. I can resent with them included if we agree this is a reasonable approach. -- Darren > >> >> When used with initrd and rootfs=/dev/ram0, this allows the >> cpio and cpio.gz images to be used as the rootfs. > > Sure, and "...If all else fails, rdinit=/bin/sh " > >> >> Signed-off-by: Darren Hart <[email protected]> >> --- >> 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}" >> >> -- >> 1.7.6.4 >> >> _______________________________________________ >> yocto mailing list >> [email protected] >> https://lists.yoctoproject.org/listinfo/yocto >> >> _______________________________________________ >> Openembedded-core mailing list >> [email protected] >> http://lists.linuxtogo.org/cgi-bin/mailman/listinfo/openembedded-core > > Regards > > Andrea Adami > > _______________________________________________ > Openembedded-core mailing list > [email protected] > http://lists.linuxtogo.org/cgi-bin/mailman/listinfo/openembedded-core -- Darren Hart Intel Open Source Technology Center Yocto Project - Linux Kernel _______________________________________________ Openembedded-core mailing list [email protected] http://lists.linuxtogo.org/cgi-bin/mailman/listinfo/openembedded-core
