161 lines
5.2 KiB
Bash
Executable File
161 lines
5.2 KiB
Bash
Executable File
#!/bin/bash
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#
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# Copyright 2014 Hewlett-Packard Development Company, L.P.
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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set -eux
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set -o pipefail
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function build_efiboot_img() {
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cat > "$TMP_BUILD_DIR/grub-embedded.cfg" << END_CONFIG
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search --set=root --label VMEDIA_BOOT_ISO
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set prefix=(\$root)/EFI/BOOT/
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END_CONFIG
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grub-mkimage --format=x86_64-efi --output=$TMP_BUILD_DIR/bootx64.efi \
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--config=$TMP_BUILD_DIR/grub-embedded.cfg --compression=xz \
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--prefix=/EFI/BOOT part_gpt part_msdos fat ext2 hfs hfsplus \
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iso9660 udf ufs1 ufs2 zfs chain linux boot appleldr ahci \
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configfile normal regexp minicmd reboot halt search \
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search_fs_file search_fs_uuid search_label gfxterm gfxmenu \
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efi_gop efi_uga all_video loadbios gzio echo true probe \
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loadenv bitmap_scale font cat help ls png jpeg tga test \
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at_keyboard usb_keyboard
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# Create a FAT formatted image that contains bootx64.efi in the /EFI/BOOT
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# directory. This is used to bootstrap GRUB from the ISO image.
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dd if=/dev/zero of=$TMP_BUILD_DIR/efiboot.img bs=1K count=1440
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mkdosfs -F 12 $TMP_BUILD_DIR/efiboot.img
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# Create a temporary mount point:
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MOUNTPOINT=$TMP_BUILD_DIR/tmpmount
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mkdir $MOUNTPOINT
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sudo mount -o loop $TMP_BUILD_DIR/efiboot.img $MOUNTPOINT
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sudo mkdir -p $MOUNTPOINT/EFI/BOOT
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sudo cp $TMP_BUILD_DIR/bootx64.efi $MOUNTPOINT/EFI/BOOT
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sudo umount $MOUNTPOINT
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rmdir $MOUNTPOINT
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cp $TMP_BUILD_DIR/efiboot.img $TMP_IMAGE_DIR/isolinux
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}
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function build_iso() {
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KERNEL=$1
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INITRD=$2
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KERNEL_CMDLINE_ARGS=$3
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OUTPUT_FILENAME=$4
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SCRIPTNAME=$(basename $0)
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SCRIPTDIR=$(dirname $0)
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MKISOFS="/usr/bin/mkisofs"
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EFI_BOOT_DIR="EFI/BOOT"
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# Create a temporary build directory for holiding the contents of iso
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TMP_IMAGE_DIR="$TMP_BUILD_DIR/image"
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echo "Creating temporary directory $TMP_IMAGE_DIR"
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mkdir -p "$TMP_IMAGE_DIR"
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# Copy isolinux bin to the isolinux directory
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mkdir -p "$TMP_IMAGE_DIR/isolinux"
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echo "Copying isolinux.bin"
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# TODO(rameshg87): Something similar to pkg-map can be used here.
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# But pkg-map doesn't work for cleanup scripts right now.
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if [ $DISTRO_NAME = "fedora" ]; then
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ISOLINUX_BIN=/usr/share/syslinux/isolinux.bin
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else
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ISOLINUX_BIN=/usr/lib/syslinux/isolinux.bin
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fi
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cp $ISOLINUX_BIN "$TMP_IMAGE_DIR/isolinux"
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# Copy initrd, kernel
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echo "Copying kernel to $TMP_IMAGE_DIR/vmlinuz"
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cp $KERNEL "$TMP_IMAGE_DIR/vmlinuz"
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echo "Copying initrd to $TMP_IMAGE_DIR/initrd"
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cp $INITRD "$TMP_IMAGE_DIR/initrd"
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# Generate isolinux.cfg for default booting
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echo "Generating isolinux.cfg"
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cat > "$TMP_IMAGE_DIR/isolinux/isolinux.cfg" << END_CONFIG
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DEFAULT install
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LABEL install
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menu label "Install image"
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kernel /vmlinuz
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append initrd=/initrd $KERNEL_CMDLINE_ARGS --
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TIMEOUT 5
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PROMPT 0
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END_CONFIG
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echo "Creating EFI/BOOT directory"
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mkdir -p "$TMP_IMAGE_DIR/$EFI_BOOT_DIR"
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# Generate grub.cfg for default booting
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echo "Generating grub.cfg"
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cat > "$TMP_IMAGE_DIR/$EFI_BOOT_DIR/grub.cfg" << END_CONFIG
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set default="0"
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set timeout="5"
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set hidden_timeout_quiet=false
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menuentry "install" {
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linux /vmlinuz $KERNEL_CMDLINE_ARGS --
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initrd /initrd
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}
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END_CONFIG
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DIB_UEFI_ISO_BUILD_EFIBOOT=${DIB_UEFI_ISO_BUILD_EFIBOOT:-}
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if [ -n "$DIB_UEFI_ISO_BUILD_EFIBOOT" ]; then
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build_efiboot_img
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else
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cp $SCRIPTDIR/efiboot.img $TMP_IMAGE_DIR/isolinux
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fi
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# Create the ISO
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echo "Generating the ISO"
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$MKISOFS -r -V "VMEDIA_BOOT_ISO" -cache-inodes -J -l \
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-b isolinux/isolinux.bin -no-emul-boot \
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-boot-load-size 4 -boot-info-table \
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-eltorito-alt-boot -e isolinux/efiboot.img \
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-no-emul-boot -o $OUTPUT_FILENAME $TMP_IMAGE_DIR
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}
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IMAGE_NAME=${IMAGE_NAME:-'image'}
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if echo $IMAGE_ELEMENT | grep -q '\bramdisk\b'; then
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EMITTED_KERNEL=$IMAGE_NAME.kernel
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EMITTED_RAMDISK=$IMAGE_NAME.initramfs
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EMITTED_KERNEL_CMDLINE_ARGS="boot_method=vmedia"
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EMITTED_ISO_FILENAME=$IMAGE_NAME.iso
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elif echo $IMAGE_ELEMENT | grep -q '\bbaremetal\b'; then
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EMITTED_KERNEL=${IMAGE_NAME}.vmlinuz
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EMITTED_RAMDISK=${IMAGE_NAME}.initrd
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EMITTED_KERNEL_CMDLINE_ARGS="root=UUID=$DIB_IMAGE_ROOT_FS_UUID"
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DIB_BOOT_ISO_KERNEL_CMDLINE_ARGS=${DIB_BOOT_ISO_KERNEL_CMDLINE_ARGS:-}
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if [ -n "$DIB_BOOT_ISO_KERNEL_CMDLINE_ARGS" ]; then
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EMITTED_KERNEL_CMDLINE_ARGS="$EMITTED_KERNEL_CMDLINE_ARGS $DIB_BOOT_ISO_KERNEL_CMDLINE_ARGS"
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fi
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export EMITTED_ISO_FILENAME="$IMAGE_NAME-boot.iso"
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else
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echo "Cannot find the kernel/ramdisk to build the iso image. "
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echo "Please use 'iso' element with either 'baremetal' or 'ramdisk' elements"
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fi
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build_iso "$EMITTED_KERNEL" "$EMITTED_RAMDISK" "$EMITTED_KERNEL_CMDLINE_ARGS" \
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"$EMITTED_ISO_FILENAME"
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