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#!/bin/bash
# For x86 legacy BIOS boot mode
function prepare_pxe_pxelinux {
if [[ "${KOLLA_BASE_DISTRO}" =~ debian|ubuntu ]]; then
cp /usr/lib/PXELINUX/pxelinux.0 \
/usr/lib/syslinux/modules/bios/{chain.c32,ldlinux.c32} \
${TFTPBOOT_PATH}/
elif [[ "${KOLLA_BASE_DISTRO}" =~ centos|rocky ]]; then
if [[ "${TFTPBOOT_PATH}" != /tftpboot ]]; then
cp /tftpboot/{pxelinux.0,chain.c32,ldlinux.c32} \
${TFTPBOOT_PATH}/
fi
fi
}
# For UEFI boot mode
function prepare_pxe_grub {
if [[ "${KOLLA_BASE_DISTRO}" =~ debian|ubuntu ]]; then
shim_src_file="/usr/lib/shim/shim*64.efi.signed"
grub_src_file="/usr/lib/grub/*-efi-signed/grubnet*64.efi.signed"
elif [[ "${KOLLA_BASE_DISTRO}" =~ centos|rocky ]]; then
shim_src_file="/boot/efi/EFI/${KOLLA_BASE_DISTRO}/shim*64.efi"
grub_src_file="/boot/efi/EFI/${KOLLA_BASE_DISTRO}/grub*64.efi"
fi
if [[ "${KOLLA_BASE_ARCH}" == "x86_64" ]]; then
shim_dst_file="bootx64.efi"
grub_dst_file="grubx64.efi"
elif [[ "${KOLLA_BASE_ARCH}" == "aarch64" ]]; then
shim_dst_file="bootaa64.efi"
grub_dst_file="grubaa64.efi"
fi
cp $shim_src_file ${TFTPBOOT_PATH}/$shim_dst_file
cp $grub_src_file ${TFTPBOOT_PATH}/$grub_dst_file
}
function prepare_ipxe {
# NOTE(mgoddard): Ironic uses snponly.efi as the default for
# uefi_ipxe_bootfile_name since Xena. In Wallaby and earlier releases it
# was ipxe.efi. Ensure that both exist, using symlinks where the files are
# named differently to allow the original names to be used in ironic.conf.
if [[ "${KOLLA_BASE_DISTRO}" =~ debian|ubuntu ]]; then
# NOTE(m-anson): ipxe-arm64.efi is not symlinked from /boot to
# /usr/lib/ipxe by the Ubuntu ipxe package, so fix that here.
if [[ -e /boot/ipxe-arm64.efi ]]; then
ln -sf /boot/ipxe-arm64.efi /usr/lib/ipxe/
fi
cp /usr/lib/ipxe/{undionly.kpxe,ipxe*.efi,snponly.efi} ${TFTPBOOT_PATH}/
elif [[ "${KOLLA_BASE_DISTRO}" =~ centos|rocky ]]; then
cp /usr/share/ipxe/{undionly.kpxe,ipxe-snponly-x86_64.efi} ${TFTPBOOT_PATH}/
cp /usr/share/ipxe/arm64-efi/snponly.efi ${TFTPBOOT_PATH}/ipxe-snponly-aarch64.efi
ln -sf ${TFTPBOOT_PATH}/ipxe-snponly-${KOLLA_BASE_ARCH}.efi ${TFTPBOOT_PATH}/snponly.efi
fi
}
function prepare_esp_image {
# NOTE(bbezak): based on https://docs.openstack.org/ironic/2024.2/install/configure-esp.html
# ESP image needs to be provided for UEFI boot with virtual media:
# https://docs.openstack.org/ironic/2024.2/admin/drivers/redfish.html#virtual-media-boot
if [[ "${KOLLA_BASE_DISTRO}" =~ debian|ubuntu ]]; then
shim_src_file="/usr/lib/shim/shim*64.efi.signed"
grub_src_file="/usr/lib/grub/*-efi-signed/grubnet*64.efi.signed"
elif [[ "${KOLLA_BASE_DISTRO}" =~ centos|rocky ]]; then
shim_src_file="/boot/efi/EFI/${KOLLA_BASE_DISTRO}/shim*64.efi"
grub_src_file="/boot/efi/EFI/${KOLLA_BASE_DISTRO}/grub*64.efi"
fi
if [[ "${KOLLA_BASE_ARCH}" == "x86_64" ]]; then
shim_dst_file="bootx64.efi"
grub_dst_file="grubx64.efi"
elif [[ "${KOLLA_BASE_ARCH}" == "aarch64" ]]; then
shim_dst_file="bootaa64.efi"
grub_dst_file="grubaa64.efi"
fi
DEST=${HTTPBOOT_PATH}/esp.img
dd if=/dev/zero of=$DEST bs=4096 count=2048
mkfs.msdos -F 12 -n ESP_IMAGE $DEST
mmd -i $DEST EFI EFI/BOOT
mcopy -i $DEST -v $shim_src_file ::EFI/BOOT/$shim_dst_file
mcopy -i $DEST -v $grub_src_file ::EFI/BOOT/$grub_dst_file
mdir -i $DEST ::EFI/BOOT
}
# Bootstrap and exit if KOLLA_BOOTSTRAP variable is set. This catches all cases
# of the KOLLA_BOOTSTRAP variable being set, including empty.
if [[ "${!KOLLA_BOOTSTRAP[@]}" ]]; then
mkdir -p ${TFTPBOOT_PATH} ${HTTPBOOT_PATH}
chown ironic: ${TFTPBOOT_PATH} ${HTTPBOOT_PATH}
prepare_pxe_pxelinux
prepare_pxe_grub
prepare_ipxe
prepare_esp_image
exit 0
fi
# Template out a TFTP map file, using the TFTPBOOT_PATH variable.
envsubst < /map-file-template > /map-file
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