Previous change (086ce22b88f5ef5f75a83119a32c8b3fdcfa296d) broke the creating of vmdk images. This protects shell expansion variables and let dd generate the image to be transformed to vmdk by image-vmdk.class. (From OE-Core rev: 2fe667afbdc6880c377657b5ff27e6db3b6cbe77) Signed-off-by: Joao Henrique Ferreira de Freitas <joaohf@gmail.com> [edit to change the usage of IMAGE_FSTYPE to IS_VMDK] Signed-off-by: Saul Wold <sgw@linux.intel.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
182 lines
5.5 KiB
Text
182 lines
5.5 KiB
Text
# boot-directdisk.bbclass
|
|
# (loosly based off bootimg.bbclass Copyright (C) 2004, Advanced Micro Devices, Inc.)
|
|
#
|
|
# Create an image which can be placed directly onto a harddisk using dd and then
|
|
# booted.
|
|
#
|
|
# This uses syslinux. extlinux would have been nice but required the ext2/3
|
|
# partition to be mounted. grub requires to run itself as part of the install
|
|
# process.
|
|
#
|
|
# The end result is a 512 boot sector populated with an MBR and partition table
|
|
# followed by an msdos fat16 partition containing syslinux and a linux kernel
|
|
# completed by the ext2/3 rootfs.
|
|
#
|
|
# We have to push the msdos parition table size > 16MB so fat 16 is used as parted
|
|
# won't touch fat12 partitions.
|
|
|
|
# External variables needed
|
|
|
|
# ${ROOTFS} - the rootfs image to incorporate
|
|
|
|
do_bootdirectdisk[depends] += "dosfstools-native:do_populate_sysroot \
|
|
syslinux:do_populate_sysroot \
|
|
syslinux-native:do_populate_sysroot \
|
|
parted-native:do_populate_sysroot \
|
|
mtools-native:do_populate_sysroot "
|
|
|
|
PACKAGES = " "
|
|
EXCLUDE_FROM_WORLD = "1"
|
|
|
|
BOOTDD_VOLUME_ID ?= "boot"
|
|
BOOTDD_EXTRA_SPACE ?= "16384"
|
|
|
|
EFI = "${@base_contains("MACHINE_FEATURES", "efi", "1", "0", d)}"
|
|
EFI_CLASS = "${@base_contains("MACHINE_FEATURES", "efi", "grub-efi", "", d)}"
|
|
|
|
# Include legacy boot if MACHINE_FEATURES includes "pcbios" or if it does not
|
|
# contain "efi". This way legacy is supported by default if neither is
|
|
# specified, maintaining the original behavior.
|
|
def pcbios(d):
|
|
pcbios = base_contains("MACHINE_FEATURES", "pcbios", "1", "0", d)
|
|
if pcbios == "0":
|
|
pcbios = base_contains("MACHINE_FEATURES", "efi", "0", "1", d)
|
|
return pcbios
|
|
|
|
def pcbios_class(d):
|
|
if d.getVar("PCBIOS", True) == "1":
|
|
return "syslinux"
|
|
return ""
|
|
|
|
PCBIOS = "${@pcbios(d)}"
|
|
PCBIOS_CLASS = "${@pcbios_class(d)}"
|
|
|
|
inherit ${PCBIOS_CLASS}
|
|
inherit ${EFI_CLASS}
|
|
|
|
# Get the build_syslinux_cfg() function from the syslinux class
|
|
|
|
AUTO_SYSLINUXCFG = "1"
|
|
DISK_SIGNATURE ?= "${DISK_SIGNATURE_GENERATED}"
|
|
SYSLINUX_ROOT ?= "root=/dev/sda2"
|
|
SYSLINUX_TIMEOUT ?= "10"
|
|
|
|
IS_VMDK = '${@base_contains("IMAGE_FSTYPES", "vmdk", "true", "false", d)}'
|
|
|
|
boot_direct_populate() {
|
|
dest=$1
|
|
install -d $dest
|
|
|
|
# Install bzImage, initrd, and rootfs.img in DEST for all loaders to use.
|
|
install -m 0644 ${STAGING_KERNEL_DIR}/bzImage $dest/vmlinuz
|
|
|
|
if [ -n "${INITRD}" ] && [ -s "${INITRD}" ]; then
|
|
install -m 0644 ${INITRD} $dest/initrd
|
|
fi
|
|
|
|
}
|
|
|
|
build_boot_dd() {
|
|
HDDDIR="${S}/hdd/boot"
|
|
HDDIMG="${S}/hdd.image"
|
|
IMAGE=${DEPLOY_DIR_IMAGE}/${IMAGE_NAME}.hdddirect
|
|
|
|
boot_direct_populate $HDDDIR
|
|
|
|
if [ "${PCBIOS}" = "1" ]; then
|
|
syslinux_hddimg_populate $HDDDIR
|
|
fi
|
|
if [ "${EFI}" = "1" ]; then
|
|
grubefi_hddimg_populate $HDDDIR
|
|
fi
|
|
|
|
if [ "${IS_VMDK}" = "true" ]; then
|
|
if [ "x${AUTO_SYSLINUXMENU}" = "x1" ] ; then
|
|
install -m 0644 ${STAGING_DIR}/${MACHINE}/usr/share/syslinux/vesamenu.c32 ${HDDDIR}${SYSLINUXDIR}/vesamenu.c32
|
|
if [ "x${SYSLINUX_SPLASH}" != "x" ] ; then
|
|
install -m 0644 ${SYSLINUX_SPLASH} ${HDDDIR}${SYSLINUXDIR}/splash.lss
|
|
fi
|
|
fi
|
|
fi
|
|
|
|
BLOCKS=`du -bks $HDDDIR | cut -f 1`
|
|
BLOCKS=`expr $BLOCKS + ${BOOTDD_EXTRA_SPACE}`
|
|
|
|
# Ensure total sectors is an integral number of sectors per
|
|
# track or mcopy will complain. Sectors are 512 bytes, and we
|
|
# generate images with 32 sectors per track. This calculation is
|
|
# done in blocks, thus the mod by 16 instead of 32.
|
|
BLOCKS=$(expr $BLOCKS + $(expr 16 - $(expr $BLOCKS % 16)))
|
|
|
|
mkdosfs -n ${BOOTDD_VOLUME_ID} -S 512 -C $HDDIMG $BLOCKS
|
|
mcopy -i $HDDIMG -s $HDDDIR/* ::/
|
|
|
|
if [ "${PCBIOS}" = "1" ]; then
|
|
syslinux_hdddirect_install $HDDIMG
|
|
fi
|
|
chmod 644 $HDDIMG
|
|
|
|
ROOTFSBLOCKS=`du -Lbks ${ROOTFS} | cut -f 1`
|
|
TOTALSIZE=`expr $BLOCKS + $ROOTFSBLOCKS`
|
|
END1=`expr $BLOCKS \* 1024`
|
|
END2=`expr $END1 + 512`
|
|
END3=`expr \( $ROOTFSBLOCKS \* 1024 \) + $END1`
|
|
|
|
echo $ROOTFSBLOCKS $TOTALSIZE $END1 $END2 $END3
|
|
rm -rf $IMAGE
|
|
dd if=/dev/zero of=$IMAGE bs=1024 seek=$TOTALSIZE count=1
|
|
|
|
parted $IMAGE mklabel msdos
|
|
parted $IMAGE mkpart primary fat16 0 ${END1}B
|
|
parted $IMAGE unit B mkpart primary ext2 ${END2}B ${END3}B
|
|
parted $IMAGE set 1 boot on
|
|
|
|
parted $IMAGE print
|
|
|
|
awk "BEGIN { printf \"$(echo ${DISK_SIGNATURE} | fold -w 2 | tac | paste -sd '' | sed 's/\(..\)/\\x&/g')\" }" | \
|
|
dd of=$IMAGE bs=1 seek=440 conv=notrunc
|
|
|
|
OFFSET=`expr $END2 / 512`
|
|
if [ "${PCBIOS}" = "1" ]; then
|
|
dd if=${STAGING_DATADIR}/syslinux/mbr.bin of=$IMAGE conv=notrunc
|
|
fi
|
|
|
|
dd if=$HDDIMG of=$IMAGE conv=notrunc seek=1 bs=512
|
|
dd if=${ROOTFS} of=$IMAGE conv=notrunc seek=$OFFSET bs=512
|
|
|
|
cd ${DEPLOY_DIR_IMAGE}
|
|
rm -f ${DEPLOY_DIR_IMAGE}/${IMAGE_LINK_NAME}.hdddirect
|
|
ln -s ${IMAGE_NAME}.hdddirect ${DEPLOY_DIR_IMAGE}/${IMAGE_LINK_NAME}.hdddirect
|
|
}
|
|
|
|
python do_bootdirectdisk() {
|
|
validate_disk_signature(d)
|
|
if d.getVar("PCBIOS", True) == "1":
|
|
bb.build.exec_func('build_syslinux_cfg', d)
|
|
if d.getVar("EFI", True) == "1":
|
|
bb.build.exec_func('build_grub_cfg', d)
|
|
bb.build.exec_func('build_boot_dd', d)
|
|
}
|
|
|
|
def generate_disk_signature():
|
|
import uuid
|
|
|
|
signature = str(uuid.uuid4())[:8]
|
|
|
|
if signature != '00000000':
|
|
return signature
|
|
else:
|
|
return 'ffffffff'
|
|
|
|
def validate_disk_signature(d):
|
|
import re
|
|
|
|
disk_signature = d.getVar("DISK_SIGNATURE", True)
|
|
|
|
if not re.match(r'^[0-9a-fA-F]{8}$', disk_signature):
|
|
bb.fatal("DISK_SIGNATURE '%s' must be an 8 digit hex string" % disk_signature)
|
|
|
|
DISK_SIGNATURE_GENERATED := "${@generate_disk_signature()}"
|
|
|
|
addtask bootdirectdisk before do_build
|