# Copyright (C) 2004, Advanced Micro Devices, Inc. All Rights Reserved # Released under the MIT license (see packages/COPYING) # Creates a bootable image using syslinux, your kernel and an optional # initrd # # End result is two things: # # 1. A .hddimage file which is an msdos filesystem containing syslinux, a kernel, # an initrd and a rootfs image. These can be written to harddisks directly and # also booted on USB flash disks (write them there with dd). # # 2. A CD .iso image # Boot process is that the initrd will boot and process which label was selected # in syslinux. Actions based on the label are then performed (e.g. installing to # an hdd) # External variables # ${INITRD} - indicates a filesystem image to use as an initrd (optional) # ${ROOTFS} - indicates a filesystem image to include as the root filesystem (optional) # ${AUTO_SYSLINUXCFG} - set this to 1 to enable creating an automatic config # ${LABELS} - a list of targets for the automatic config # ${APPEND} - an override list of append strings for each label # ${SYSLINUX_OPTS} - additional options to add to the syslinux file ';' delimited do_bootimg[depends] += "dosfstools-native:do_populate_sysroot \ syslinux:do_populate_sysroot \ syslinux-native:do_populate_sysroot \ mtools-native:do_populate_sysroot \ cdrtools-native:do_populate_sysroot" PACKAGES = " " EXCLUDE_FROM_WORLD = "1" HDDDIR = "${S}/hdd/boot" ISODIR = "${S}/cd/isolinux" BOOTIMG_VOLUME_ID ?= "boot" BOOTIMG_EXTRA_SPACE ?= "512" # Get the build_syslinux_cfg() function from the syslinux class SYSLINUXCFG = "${HDDDIR}/syslinux.cfg" SYSLINUXMENU = "${HDDDIR}/menu" inherit syslinux build_boot_bin() { install -d ${HDDDIR} install -m 0644 ${STAGING_DIR_HOST}/kernel/bzImage \ ${HDDDIR}/vmlinuz if [ -n "${INITRD}" ] && [ -s "${INITRD}" ]; then install -m 0644 ${INITRD} ${HDDDIR}/initrd fi if [ -n "${ROOTFS}" ] && [ -s "${ROOTFS}" ]; then install -m 0644 ${ROOTFS} ${HDDDIR}/rootfs.img fi install -m 444 ${STAGING_LIBDIR}/syslinux/ldlinux.sys ${HDDDIR}/ldlinux.sys # Do a little math, bash style #BLOCKS=`du -s ${HDDDIR} | cut -f 1` BLOCKS=`du -bks ${HDDDIR} | cut -f 1` SIZE=`expr $BLOCKS + ${BOOTIMG_EXTRA_SPACE}` mkdosfs -n ${BOOTIMG_VOLUME_ID} -d ${HDDDIR} \ -C ${DEPLOY_DIR_IMAGE}/${IMAGE_NAME}.hddimg $SIZE syslinux ${DEPLOY_DIR_IMAGE}/${IMAGE_NAME}.hddimg chmod 644 ${DEPLOY_DIR_IMAGE}/${IMAGE_NAME}.hddimg cd ${DEPLOY_DIR_IMAGE} rm -f ${DEPLOY_DIR_IMAGE}/${IMAGE_LINK_NAME}.hddimg ln -s ${IMAGE_NAME}.hddimg ${DEPLOY_DIR_IMAGE}/${IMAGE_LINK_NAME}.hddimg #Create an ISO if we have an INITRD if [ -n "${INITRD}" ] && [ -s "${INITRD}" ] && [ "${NOISO}" != "1" ] ; then install -d ${ISODIR} # Install the kernel install -m 0644 ${STAGING_DIR_HOST}/kernel/bzImage \ ${ISODIR}/vmlinuz # Install the configuration files cp ${HDDDIR}/syslinux.cfg ${ISODIR}/isolinux.cfg if [ -f ${SYSLINUXMENU} ]; then cp ${SYSLINUXMENU} ${ISODIR} fi install -m 0644 ${INITRD} ${ISODIR}/initrd if [ -n "${ROOTFS}" ] && [ -s "${ROOTFS}" ]; then install -m 0644 ${ROOTFS} ${ISODIR}/rootfs.img fi # And install the syslinux stuff cp ${STAGING_LIBDIR}/syslinux/isolinux.bin ${ISODIR} mkisofs -V ${BOOTIMG_VOLUME_ID} \ -o ${DEPLOY_DIR_IMAGE}/${IMAGE_NAME}.iso \ -b isolinux/isolinux.bin -c isolinux/boot.cat -r \ -no-emul-boot -boot-load-size 4 -boot-info-table \ ${S}/cd/ cd ${DEPLOY_DIR_IMAGE} rm -f ${DEPLOY_DIR_IMAGE}/${IMAGE_LINK_NAME}.iso ln -s ${IMAGE_NAME}.iso ${DEPLOY_DIR_IMAGE}/${IMAGE_LINK_NAME}.iso fi } python do_bootimg() { bb.build.exec_func('build_syslinux_cfg', d) bb.build.exec_func('build_boot_bin', d) } addtask bootimg before do_build do_bootimg[nostamp] = "1"