diskimage-builder/diskimage_builder/elements/iso/cleanup.d/100-build-iso
Mateusz Kowalski 3b22ee8784
Change paths for bootloader files in iso element
This PR updates locations for files used by the bootloader depending on
the target operating system built. The current logic does not take into
account latest versions of operating systems and makes it impossible to
build ISOs against those.

With this change it is possible to correctly build CentOS 8, Ubuntu
18.04 and Ubuntu 20.04 images.

Closes-Bug: #1916913
Change-Id: I3ed0041640f539e82805d03ba26fe46217f3ac3c
2021-03-03 11:01:14 +01:00

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#!/bin/bash
#
# Copyright 2014 Hewlett-Packard Development Company, L.P.
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
# dib-lint: disable=safe_sudo
if [ ${DIB_DEBUG_TRACE:-1} -gt 0 ]; then
set -x
fi
set -eu
set -o pipefail
function build_efiboot_img() {
# Signed bootloader files are saved at tmp/bootloader_files during
# post-install stage needs to copy them into image.
# Signed bootloader packages used are:-
# Ubuntu: grub-efi-amd64-signed and shim-signed
# Fedora: grub2-efi and shim
if [[ $DISTRO_NAME = "fedora" || $DISTRO_NAME = "rhel7" ]] ; then
cp $TMP_BOOTLOADER_DIR/shim.efi $TMP_BUILD_DIR/bootx64.efi
cp $TMP_BOOTLOADER_DIR/grubx64.efi $TMP_BUILD_DIR/grubx64.efi
elif [[ $DISTRO_NAME = "centos" ]] ; then
cp $TMP_BOOTLOADER_DIR/shimx64-centos.efi $TMP_BUILD_DIR/bootx64.efi
cp $TMP_BOOTLOADER_DIR/grubx64.efi $TMP_BUILD_DIR/grubx64.efi
elif [[ $DISTRO_NAME = "ubuntu" || $DISTRO_NAME = "debian" ]] ; then
cp $TMP_BOOTLOADER_DIR/shimx64.efi.signed $TMP_BUILD_DIR/bootx64.efi
cp $TMP_BOOTLOADER_DIR/grubx64.efi.signed $TMP_BUILD_DIR/grubx64.efi
else
cp $TMP_BOOTLOADER_DIR/shim.efi.signed $TMP_BUILD_DIR/bootx64.efi
cp $TMP_BOOTLOADER_DIR/grubx64.efi.signed $TMP_BUILD_DIR/grubx64.efi
fi
dd if=/dev/zero of=$TMP_BUILD_DIR/efiboot.img bs=1K count=5760
mkdosfs -F 12 $TMP_BUILD_DIR/efiboot.img
# Create a temporary mount point:
MOUNTPOINT=$TMP_BUILD_DIR/tmpmount
mkdir $MOUNTPOINT
sudo mount -o loop $TMP_BUILD_DIR/efiboot.img $MOUNTPOINT
sudo mkdir -p $MOUNTPOINT/EFI/BOOT
sudo cp $TMP_BUILD_DIR/bootx64.efi $MOUNTPOINT/EFI/BOOT
sudo cp $TMP_BUILD_DIR/grubx64.efi $MOUNTPOINT/EFI/BOOT
sudo umount $MOUNTPOINT
rmdir $MOUNTPOINT
cp $TMP_BUILD_DIR/efiboot.img $TMP_IMAGE_DIR/isolinux
}
function build_iso() {
KERNEL=$1
INITRD=$2
KERNEL_CMDLINE_ARGS=$3
OUTPUT_FILENAME=$4
SCRIPTNAME=$(basename $0)
SCRIPTDIR=$(dirname $0)
MKISOFS="/usr/bin/mkisofs"
if [ $DISTRO_NAME = "fedora" ]; then
EFI_BOOT_DIR="EFI/fedora"
EXTRA_KERNEL_PARAMS="usbcore.autosuspend=-1"
#centos
elif [ $DISTRO_NAME = "centos" ]; then
EFI_BOOT_DIR="EFI/centos"
EXTRA_KERNEL_PARAMS=""
#debian
elif [ $DISTRO_NAME = "debian" ]; then
EFI_BOOT_DIR="EFI/debian"
EXTRA_KERNEL_PARAMS=""
#ubuntu:
else
EFI_BOOT_DIR="EFI/ubuntu"
EXTRA_KERNEL_PARAMS=""
fi
# Create a temporary build directory for holding the contents of iso
TMP_IMAGE_DIR="$TMP_BUILD_DIR/image"
echo "Creating temporary directory $TMP_IMAGE_DIR"
mkdir -p "$TMP_IMAGE_DIR"
# Copy isolinux bin to the isolinux directory
mkdir -p "$TMP_IMAGE_DIR/isolinux"
echo "Copying isolinux.bin"
ISOLINUX_BIN=$TMP_BOOTLOADER_DIR/isolinux.bin
LDLINUX_BIN=$TMP_BOOTLOADER_DIR/ldlinux.c32
cp $ISOLINUX_BIN "$TMP_IMAGE_DIR/isolinux"
# Starting from SYSLINUX 5.00, the isolinux.bin is dependent
# on ldlinux.c32.
# http://www.syslinux.org/wiki/index.php/Library_modules
if [ -f "$LDLINUX_BIN" ]; then
cp $LDLINUX_BIN "$TMP_IMAGE_DIR/isolinux"
fi
# Copy initrd, kernel
echo "Copying kernel to $TMP_IMAGE_DIR/vmlinuz"
cp $KERNEL "$TMP_IMAGE_DIR/vmlinuz"
echo "Copying initrd to $TMP_IMAGE_DIR/initrd"
cp $INITRD "$TMP_IMAGE_DIR/initrd"
# Generate isolinux.cfg for default booting
echo "Generating isolinux.cfg"
cat > "$TMP_IMAGE_DIR/isolinux/isolinux.cfg" << END_CONFIG
DEFAULT install
LABEL install
menu label "Install image"
kernel /vmlinuz
append initrd=/initrd $KERNEL_CMDLINE_ARGS --
TIMEOUT 5
PROMPT 0
END_CONFIG
echo "Creating EFI/ubuntu directory"
mkdir -p "$TMP_IMAGE_DIR/$EFI_BOOT_DIR"
# Generate grub.cfg for default booting
echo "Generating grub.cfg"
cat > "$TMP_IMAGE_DIR/$EFI_BOOT_DIR/grub.cfg" << END_CONFIG
set default="0"
set timeout="5"
set hidden_timeout_quiet=false
menuentry "install" {
search --set=root --label VMEDIA_BOOT_ISO
linuxefi /vmlinuz $EXTRA_KERNEL_PARAMS $KERNEL_CMDLINE_ARGS --
initrdefi /initrd
}
END_CONFIG
build_efiboot_img
# Create the ISO
echo "Generating the ISO"
$MKISOFS -r -V "VMEDIA_BOOT_ISO" -cache-inodes -J -l \
-b isolinux/isolinux.bin -no-emul-boot \
-boot-load-size 4 -boot-info-table \
-eltorito-alt-boot -e isolinux/efiboot.img \
-no-emul-boot -o $OUTPUT_FILENAME $TMP_IMAGE_DIR
}
IMAGE_NAME=${IMAGE_NAME:-'image'}
if echo $IMAGE_ELEMENT | grep -q '\bramdisk\b'; then
EMITTED_KERNEL=$IMAGE_NAME.kernel
EMITTED_RAMDISK=$IMAGE_NAME.initramfs
DIB_DEPLOY_ISO_KERNEL_CMDLINE_ARGS=${DIB_DEPLOY_ISO_KERNEL_CMDLINE_ARGS:-}
EMITTED_KERNEL_CMDLINE_ARGS="boot_method=vmedia $DIB_DEPLOY_ISO_KERNEL_CMDLINE_ARGS"
EMITTED_ISO_FILENAME=$IMAGE_NAME.iso
elif echo $IMAGE_ELEMENT | grep -q '\bironic-python-agent\b'; then
EMITTED_KERNEL=$IMAGE_NAME.vmlinuz
EMITTED_RAMDISK=$IMAGE_NAME.initramfs
DIB_DEPLOY_ISO_KERNEL_CMDLINE_ARGS=${DIB_DEPLOY_ISO_KERNEL_CMDLINE_ARGS:-}
EMITTED_KERNEL_CMDLINE_ARGS="boot_method=vmedia $DIB_DEPLOY_ISO_KERNEL_CMDLINE_ARGS"
EMITTED_ISO_FILENAME=$IMAGE_NAME.iso
elif echo $IMAGE_ELEMENT | grep -q '\bbaremetal\b'; then
EMITTED_KERNEL=${IMAGE_NAME}.vmlinuz
EMITTED_RAMDISK=${IMAGE_NAME}.initrd
EMITTED_KERNEL_CMDLINE_ARGS="root=UUID=$DIB_IMAGE_ROOT_FS_UUID"
DIB_BOOT_ISO_KERNEL_CMDLINE_ARGS=${DIB_BOOT_ISO_KERNEL_CMDLINE_ARGS:-}
if [ -n "$DIB_BOOT_ISO_KERNEL_CMDLINE_ARGS" ]; then
EMITTED_KERNEL_CMDLINE_ARGS="$EMITTED_KERNEL_CMDLINE_ARGS $DIB_BOOT_ISO_KERNEL_CMDLINE_ARGS"
fi
export EMITTED_ISO_FILENAME="$IMAGE_NAME-boot.iso"
else
echo "Cannot find the kernel/ramdisk to build the iso image. "
echo "Please use 'iso' element with either 'baremetal' or 'ramdisk' elements"
fi
export TMP_BOOTLOADER_DIR=$TARGET_ROOT/tmp/bootloader_files
build_iso "$EMITTED_KERNEL" "$EMITTED_RAMDISK" "$EMITTED_KERNEL_CMDLINE_ARGS" \
"$EMITTED_ISO_FILENAME"
# Clean-up the bootloaders directory
sudo rm -fr $TMP_BOOTLOADER_DIR