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git://git.yoctoproject.org/meta-raspberrypi.git
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ce246f83d6
[GITHUB #49] Signed-off-by: Sander van Grieken <sander@outrightsolutions.nl> Signed-off-by: Andrei Gherzan <andrei@gherzan.ro>
119 lines
3.9 KiB
Plaintext
119 lines
3.9 KiB
Plaintext
#
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# Create an image that can by written onto a SD card using dd.
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#
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# The disk layout used is:
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#
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# 0 - 1M - reserved for other data
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# 1M - BOOT_SPACE - bootloader and kernel
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# BOOT_SPACE - SDIMG_SIZE - rootfs
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#
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# Set kernel and boot loader
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IMAGE_BOOTLOADER ?= "bcm2835-bootfiles"
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# Default to 1.4GiB images
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SDIMG_SIZE ?= "4000"
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# Boot partition volume id
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BOOTDD_VOLUME_ID ?= "${MACHINE}"
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# Addional space for boot partition
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BOOT_SPACE ?= "20MiB"
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# Use an uncompressed ext3 by default as rootfs
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SDIMG_ROOTFS_TYPE ?= "ext3"
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SDIMG_ROOTFS = "${IMAGE_NAME}.rootfs.${SDIMG_ROOTFS_TYPE}"
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# Set GPU firmware image to be used
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# arm128 : 128M ARM, 128M GPU split
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# arm192 : 192M ARM, 64M GPU split
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# arm224 : 224M ARM, 32M GPU split
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# arm240 : 240M ARM, 16M GPU split
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RPI_GPU_FIRMWARE ?= "arm192"
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IMAGE_DEPENDS_rpi-sdimg = " \
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parted-native \
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mtools-native \
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dosfstools-native \
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virtual/kernel \
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${IMAGE_BOOTLOADER} \
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"
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# SD card image name
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SDIMG = "${DEPLOY_DIR_IMAGE}/${IMAGE_NAME}.rootfs.rpi-sdimg"
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# Additional files and/or directories to be copied into the vfat partition from the IMAGE_ROOTFS.
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FATPAYLOAD ?= ""
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IMAGEDATESTAMP = "${@time.strftime('%Y.%m.%d',time.gmtime())}"
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IMAGE_CMD_rpi-sdimg () {
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# Initialize sdcard image file
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dd if=/dev/zero of=${SDIMG} bs=1 count=0 seek=$(expr 1000 \* 1000 \* ${SDIMG_SIZE})
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# Create partition table
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parted -s ${SDIMG} mklabel msdos
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# Create boot partition and mark it as bootable
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parted -s ${SDIMG} mkpart primary fat32 1MiB ${BOOT_SPACE}
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parted -s ${SDIMG} set 1 boot on
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# Create rootfs partition
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parted -s ${SDIMG} mkpart primary ext2 ${BOOT_SPACE} 100%
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parted ${SDIMG} print
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# Create a vfat image with boot files
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BOOT_BLOCKS=$(LC_ALL=C parted -s ${SDIMG} unit b print | awk '/ 1 / { print substr($4, 1, length($4 -1)) / 512 /2 }')
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mkfs.vfat -n "${BOOTDD_VOLUME_ID}" -S 512 -C ${WORKDIR}/boot.img $BOOT_BLOCKS
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case "${RPI_GPU_FIRMWARE}" in
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"arm128" | "arm192" | "arm224" | "arm240")
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mcopy -i ${WORKDIR}/boot.img -s ${DEPLOY_DIR_IMAGE}/bcm2835-bootfiles/${RPI_GPU_FIRMWARE}_start.elf ::start.elf
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;;
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*)
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bberror "RPI_GPU_FIRMWARE is undefined or value not recognised. Possible values: arm128, arm192, arm224 or arm240."
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exit 1
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;;
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esac
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# To do
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# Copy here a cmdline.txt file generated taking into consideration the partition type
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# of the rootfs
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mcopy -i ${WORKDIR}/boot.img -s ${DEPLOY_DIR_IMAGE}/bcm2835-bootfiles/bootcode.bin ::
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mcopy -i ${WORKDIR}/boot.img -s ${DEPLOY_DIR_IMAGE}/bcm2835-bootfiles/loader.bin ::
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mcopy -i ${WORKDIR}/boot.img -s ${DEPLOY_DIR_IMAGE}/${KERNEL_IMAGETYPE}-${MACHINE}.bin ::kernel.img
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if [ -n ${FATPAYLOAD} ] ; then
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echo "Copying payload into VFAT"
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for entry in ${FATPAYLOAD} ; do
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# add the || true to stop aborting on vfat issues like not supporting .~lock files
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mcopy -i ${WORKDIR}/boot.img -s -v ${IMAGE_ROOTFS}$entry :: || true
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done
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fi
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# Add stamp file
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echo "${IMAGE_NAME}-${IMAGEDATESTAMP}" > ${WORKDIR}/image-version-info
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mcopy -i ${WORKDIR}/boot.img -v ${WORKDIR}//image-version-info ::
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# Burn Partitions
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dd if=${WORKDIR}/boot.img of=${SDIMG} conv=notrunc seek=1 bs=1M && sync && sync
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# If SDIMG_ROOTFS_TYPE is a .xz file use xzcat
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if [[ "$SDIMG_ROOTFS_TYPE" == *.xz ]]
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then
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xzcat ${SDIMG_ROOTFS} | dd of=${SDIMG} conv=notrunc seek=1 bs=${BOOT_SPACE} && sync && sync
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else
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dd if=${SDIMG_ROOTFS} of=${SDIMG} conv=notrunc seek=1 bs=${BOOT_SPACE} && sync && sync
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fi
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}
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ROOTFS_POSTPROCESS_COMMAND += " rpi_generate_sysctl_config ; "
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rpi_generate_sysctl_config() {
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# systemd sysctl config
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test -d ${IMAGE_ROOTFS}${sysconfdir}/sysctl.d && \
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echo "vm.min_free_kbytes = 8192" > ${IMAGE_ROOTFS}${sysconfdir}/sysctl.d/rpi-vm.conf
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# sysv sysctl config
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IMAGE_SYSCTL_CONF="${IMAGE_ROOTFS}${sysconfdir}/sysctl.conf"
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test -e ${IMAGE_ROOTFS}${sysconfdir}/sysctl.conf && \
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sed -e "/vm.min_free_kbytes/d" -i ${IMAGE_SYSCTL_CONF}
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echo "" >> ${IMAGE_SYSCTL_CONF} && echo "vm.min_free_kbytes = 8192" >> ${IMAGE_SYSCTL_CONF}
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}
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