mirror of https://github.com/ipxe/ipxe.git
WIP - attempt creation of ESP manually via sfdisk
Michael Brown
parent
c30b71ee9c
commit
5db83a1da6
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@ -4,6 +4,7 @@
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set -e
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set -u
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set -x
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# Print usage message
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#
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@ -17,28 +18,58 @@ help() {
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echo " -s SCRIPT use executable script"
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}
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# Get big-endian hex value from binary file
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#
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get_be() {
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local FILENAME
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local OFFSET
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local LEN
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FILENAME="${1}"
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OFFSET="${2}"
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LEN="${3}"
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od -j "${OFFSET}" -N "${LEN}" -A n -t x1 -- "${FILENAME}" | tr -d " "
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}
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# Get little-endian hex value from binary file
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#
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get_le() {
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local FILENAME
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local OFFSET
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local LEN
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local BYTE
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local VALUE
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FILENAME="${1}"
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OFFSET="${2}"
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LEN="${3}"
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VALUE=""
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while [ "${LEN}" -gt 0 ] ; do
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LEN=$(( "${LEN}" - 1 ))
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BYTE=$(get_be "${FILENAME}" $(( "${OFFSET}" + "${LEN}" )) 1)
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VALUE="${VALUE}${BYTE}"
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done
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echo "${VALUE}"
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}
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# Get hex byte from binary file
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#
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get_byte() {
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local FILENAME
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local OFFSET
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FILENAME="${1}"
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OFFSET="${2}"
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od -j "${OFFSET}" -N 1 -A n -t x1 -- "${FILENAME}" | tr -d " "
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get_be "${1}" "${2}" 1
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}
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# Get hex word from binary file
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# Get little-endian hex word from binary file
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#
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get_word() {
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local FILENAME
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local OFFSET
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get_le "${1}" "${2}" 2
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}
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FILENAME="${1}"
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OFFSET="${2}"
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od -j "${OFFSET}" -N 2 -A n -t x1 -- "${FILENAME}" | tr -d " "
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# Get little-endian hex dword from binary file
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#
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get_dword() {
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get_le "${1}" "${2}" 4
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}
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# Get appropriate EFI boot filename for CPU architecture
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@ -51,31 +82,31 @@ efi_boot_name() {
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FILENAME="${1}"
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MZSIG=$(get_word "${FILENAME}" 0)
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if [ "${MZSIG}" != "4d5a" ] ; then
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if [ "${MZSIG}" != "5a4d" ] ; then
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echo "${FILENAME}: invalid MZ header" >&2
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exit 1
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fi
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PEOFF=$(get_byte "${FILENAME}" 0x3c)
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PESIG=$(get_word "${FILENAME}" 0x${PEOFF})
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if [ "${PESIG}" != "5045" ] ; then
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if [ "${PESIG}" != "4550" ] ; then
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echo "${FILENAME}: invalid PE header" >&2
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exit 1
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fi
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ARCH=$(get_word "${FILENAME}" $(( 0x${PEOFF} + 4 )) )
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case "${ARCH}" in
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"4c01" )
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"014c" )
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echo "BOOTIA32.EFI"
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;;
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"6486" )
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"8664" )
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echo "BOOTX64.EFI"
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;;
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"c201" )
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"01c2" )
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echo "BOOTARM.EFI"
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;;
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"6462" )
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"6264" )
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echo "BOOTLOONGARCH64.EFI"
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;;
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"64aa" )
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"aa64" )
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echo "BOOTAA64.EFI"
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;;
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* )
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@ -117,6 +148,28 @@ copy_syslinux_file() {
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return 1
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}
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# Create EFI boot partition
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#
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create_esp() {
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local FILENAME
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local BOOTCAT
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local PLATFORM
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local START
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local COUNT
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FILENAME="${1}"
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BOOTCAT=$(( 0x$(get_dword "${FILENAME}" 0x8847) * 0x800 ))
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PLATFORM=$(get_byte "${FILENAME}" $(( ${BOOTCAT} + 0x01 )) )
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if [ "${PLATFORM}" != "ef" ] ; then
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echo "${FILENAME}: missing EFI boot catalog" >&2
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exit 1
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fi
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START=$(( 0x$(get_dword "${FILENAME}" $(( ${BOOTCAT} + 0x28 )) ) * 4 ))
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COUNT=$(( 0x$(get_word "${FILENAME}" $(( ${BOOTCAT} + 0x26 )) ) * 4 ))
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echo "${START},${COUNT},0xef;" | sfdisk -f -w never "${FILENAME}"
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}
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# Parse command-line options
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#
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OUTFILE=
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@ -234,12 +287,17 @@ done
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#
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if [ -n "${ISOIMG}" ] ; then
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ISOARGS="-J -R -l"
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copy_syslinux_file "isolinux.bin" "${ISODIR}"
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copy_syslinux_file "ldlinux.c32" "${ISODIR}" 2>/dev/null || true
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ISOARGS="${ISOARGS} -no-emul-boot -eltorito-boot isolinux.bin"
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ISOARGS="${ISOARGS} -boot-load-size 4 -boot-info-table"
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if [ -n "${LKRN}" ] ; then
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copy_syslinux_file "isolinux.bin" "${ISODIR}"
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copy_syslinux_file "ldlinux.c32" "${ISODIR}" 2>/dev/null || true
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ISOARGS="${ISOARGS} -no-emul-boot -eltorito-boot isolinux.bin"
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ISOARGS="${ISOARGS} -boot-load-size 4 -boot-info-table"
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fi
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if [ -n "${LKRN}" -a -n "${EFI}" ] ; then
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ISOARGS="${ISOARGS} -eltorito-alt-boot"
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fi
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if [ -n "${EFI}" ] ; then
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ISOARGS="${ISOARGS} -eltorito-alt-boot -no-emul-boot -e esp.img"
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ISOARGS="${ISOARGS} -no-emul-boot -e esp.img"
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else
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FATIMG=
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fi
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@ -309,6 +367,7 @@ if [ -n "${ISOIMG}" ] ; then
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-appid "iPXE - Open Source Network Boot Firmware" \
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-publisher "ipxe.org" -sysid "iPXE" -o "${ISOIMG}" \
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${ISOARGS} "${ISODIR}"
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create_esp "${ISOIMG}"
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if isohybrid --version >/dev/null 2>&1 ; then
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ISOHYBRIDARGS=
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if [ -n "${EFI}" ] ; then
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