mirror of
https://gitlab.archlinux.org/tpowa/archboot.git
synced 2024-09-20 03:50:37 +02:00
358 lines
9.8 KiB
Bash
Executable file
358 lines
9.8 KiB
Bash
Executable file
#! /bin/bash
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# Script for creating grub2 efi bootable isos
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# Contributed by "Keshav P R " <skodabenz at rocketmail dot com>
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export archboot_ver="2010.10-1"
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export wd=${PWD}
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export archboot_ext=${wd}/archboot_ext
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export iso_name="archboot_${archboot_ver}_efi"
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export grub2_name="grub2"
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export GRUB2_MODULES="part_gpt part_msdos bsd fat ntfs ntfscomp ext2 iso9660 udf hfsplus fshelp memdisk tar normal chain linux ls search search_fs_file search_fs_uuid search_label help loopback boot configfile echo lvm efi_gop png"
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export MKTEMP_TEMPLATE="/tmp/grub2_efi.XXXXXXXXXX"
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export RM_UNWANTED="0"
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echo
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### check for root
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if ! [ $UID -eq 0 ]; then
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echo "ERROR: Please run as root user!"
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exit 1
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fi
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set -x
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## Remove old files and dir
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rm -rf ${archboot_ext}/
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rm ${wd}/${iso_name}_isohybrid.iso
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rm ${wd}/${iso_name}_usb.img
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echo
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## Create a dir to extract the archboot iso
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mkdir -p ${archboot_ext}
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cd ${archboot_ext}/
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## Extract the archboot iso using bsdtar
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bsdtar xf ${wd}/archlinux-${archboot_ver}-archboot.iso
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echo
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rm -rf ${archboot_ext}/[BOOT]/
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echo
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## Rename isolinux dir to /boot/syslinux if it exists
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if [ -d ${archboot_ext}/isolinux ] && [ ! -d ${archboot_ext}/boot/syslinux ]
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then
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mkdir -p ${archboot_ext}/boot/
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cp -r ${archboot_ext}/isolinux ${archboot_ext}/boot/syslinux
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mv ${archboot_ext}/boot/syslinux/isolinux.cfg ${archboot_ext}/boot/syslinux/syslinux.cfg
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# rm ${archboot_ext}/boot/syslinux/isolinux.cfg
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# cp ${wd}/syslinux.cfg ${archboot_ext}/boot/syslinux/syslinux.cfg
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rm -rf ${archboot_ext}/isolinux
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echo
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fi
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for file in vmlinuz initrd.img vm64 initrd64.img vmlts initrdlts.img vm64lts initrd64lts.img memtest
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do
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if [ -e ${archboot_ext}/boot/syslinux/${file} ]
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then
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mv ${archboot_ext}/boot/syslinux/${file} ${archboot_ext}/boot/${file}
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fi
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done
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if [ -e ${archboot_ext}/boot/syslinux/splash.png ]
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then
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cp ${archboot_ext}/boot/syslinux/splash.png ${archboot_ext}/boot/splash.png
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fi
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rm -rf ${archboot_ext}/efi/grub2/
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rm -rf ${archboot_ext}/efi/boot/
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## Create UEFI compliant ESP directory
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mkdir -p ${archboot_ext}/efi/grub2/
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mkdir -p ${archboot_ext}/efi/boot/
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## Delete old ESP image
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if [ -e ${archboot_ext}/efi/grub2/grub2_efi.bin ]
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then
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rm -rf ${archboot_ext}/efi/grub2/grub2_efi.bin
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echo
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fi
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## Create a blank image to be converted to ESP IMG
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dd if=/dev/zero of=${archboot_ext}/efi/grub2/grub2_efi.bin bs=1024 count=2048
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echo
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## Create a FAT12 FS with Volume label "grub2_efi"
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mkfs.vfat -F12 -S 512 -n "grub2_efi" ${archboot_ext}/efi/grub2/grub2_efi.bin
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echo
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## Create a mountpoint for the grub2_efi.bin image if it does not exist
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grub2_efi_mp=$(mktemp -d "$MKTEMP_TEMPLATE")
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echo
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## Mount the ${archboot_ext}/efi/grub2/grub2_efi.bin image at ${grub2_efi_mp} as loop
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modprobe loop
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LOOP_DEVICE=$(losetup --show --find ${archboot_ext}/efi/grub2/grub2_efi.bin)
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mount -o rw,users -t vfat ${LOOP_DEVICE} ${grub2_efi_mp}
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echo
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mkdir -p ${archboot_ext}/efi/grub2
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cp -r /usr/lib/${grub2_name}/x86_64-efi ${archboot_ext}/efi/grub2/x86_64-efi
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cp -r /usr/lib/${grub2_name}/i386-efi ${archboot_ext}/efi/grub2/i386-efi
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cp /etc/grub.d/unifont.pf2 /etc/grub.d/ascii.pf2 ${archboot_ext}/efi/grub2/
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cp -r ${archboot_ext}/efi/grub2/x86_64-efi/locale ${archboot_ext}/efi/grub2/locale || true
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rm -rf ${archboot_ext}/efi/grub2/x86_64-efi/locale/ || true
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rm -rf ${archboot_ext}/efi/grub2/i386-efi/locale/ || true
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echo
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## Create memdisk for bootx64.efi
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memdisk_64_img=$(mktemp "$MKTEMP_TEMPLATE")
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memdisk_64_dir=$(mktemp -d "$MKTEMP_TEMPLATE")
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mkdir -p ${memdisk_64_dir}/efi/grub2
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echo
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cat << EOF > ${memdisk_64_dir}/efi/grub2/grub.cfg
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set _EFI_ARCH="x86_64"
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search --file --no-floppy --set=efi64 /efi/grub2/x86_64-efi/grub.cfg
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set prefix=(\${efi64})/efi/grub2/x86_64-efi
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source \${prefix}/grub.cfg
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EOF
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echo
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cat << EOF > ${archboot_ext}/efi/grub2/x86_64-efi/grub.cfg
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search --file --no-floppy --set=efi64 /efi/grub2/x86_64-efi/grub.cfg
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source (\${efi64})/efi/boot/grub.cfg
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EOF
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echo
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cd ${memdisk_64_dir}
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tar -cf - efi > ${memdisk_64_img}
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rm -rf ${memdisk_64_dir}
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echo
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## Create memdisk for bootia32.efi
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memdisk_32_img=$(mktemp "$MKTEMP_TEMPLATE")
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memdisk_32_dir=$(mktemp -d "$MKTEMP_TEMPLATE")
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mkdir -p ${memdisk_32_dir}/efi/grub2
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echo
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cat << EOF > ${memdisk_32_dir}/efi/grub2/grub.cfg
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set _EFI_ARCH="i386"
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search --file --no-floppy --set=efi32 /efi/grub2/i386-efi/grub.cfg
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set prefix=(\${efi32})/efi/grub2/i386-efi
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source \${prefix}/grub.cfg
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EOF
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echo
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cat << EOF > ${archboot_ext}/efi/grub2/i386-efi/grub.cfg
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search --file --no-floppy --set=efi32 /efi/grub2/i386-efi/grub.cfg
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source (\${efi32})/efi/boot/grub.cfg
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EOF
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echo
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cd ${memdisk_32_dir}
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tar -cf - efi > ${memdisk_32_img}
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rm -rf ${memdisk_32_dir}
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echo
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## Create actual bootx64.efi and bootia32.efi files
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mkdir -p ${grub2_efi_mp}/efi/boot
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echo
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/bin/${grub2_name}-mkimage --directory=/usr/lib/${grub2_name}/x86_64-efi --memdisk=${memdisk_64_img} --prefix='(memdisk)/efi/grub2' --output=${grub2_efi_mp}/efi/boot/bootx64.efi --format=x86_64-efi ${GRUB2_MODULES}
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echo
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/bin/${grub2_name}-mkimage --directory=/usr/lib/${grub2_name}/i386-efi --memdisk=${memdisk_32_img} --prefix='(memdisk)/efi/grub2' --output=${grub2_efi_mp}/efi/boot/bootia32.efi --format=i386-efi ${GRUB2_MODULES}
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echo
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umount ${grub2_efi_mp}
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rm -rf ${grub2_efi_mp}
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echo
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losetup --detach ${LOOP_DEVICE}
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echo
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/bin/${grub2_name}-mkimage --directory=/usr/lib/${grub2_name}/x86_64-efi --memdisk=${memdisk_64_img} --prefix='(memdisk)/efi/grub2' --output=${archboot_ext}/efi/boot/bootx64.efi --format=x86_64-efi ${GRUB2_MODULES}
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echo
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/bin/${grub2_name}-mkimage --directory=/usr/lib/${grub2_name}/i386-efi --memdisk=${memdisk_32_img} --prefix='(memdisk)/efi/grub2' --output=${archboot_ext}/efi/boot/bootia32.efi --format=i386-efi ${GRUB2_MODULES}
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echo
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rm ${memdisk_64_img}
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rm ${memdisk_32_img}
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echo
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## Copy the actual grub2 config file
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cat << EOF > ${archboot_ext}/efi/boot/grub.cfg
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search --file --no-floppy --set=archboot /arch/archboot.txt
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insmod efi_gop
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insmod font
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if loadfont (\${archboot})/efi/grub2/unifont.pf2
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then
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insmod gfxterm
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set gfxmode="auto"
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set gfxpayload=keep
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terminal_output gfxterm
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set color_normal=light-blue/black
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set color_highlight=light-cyan/blue
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insmod png
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background_image (\${archboot})/boot/splash.png
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fi
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insmod fat
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insmod iso9660
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insmod udf
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insmod search_fs_file
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insmod bsd
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insmod linux
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set _kernel_params="nomodeset add_efi_memmap none=EFI_ARCH_\${_EFI_ARCH}"
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menuentry "Arch Linux (i686) archboot" {
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linux (\${archboot})/boot/vmlinuz ro \${_kernel_params}
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initrd (\${archboot})/boot/initrd.img
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}
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menuentry "Arch Linux (x86_64) archboot" {
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linux (\${archboot})/boot/vm64 ro \${_kernel_params}
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initrd (\${archboot})/boot/initrd64.img
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}
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menuentry "Arch Linux LTS (i686) archboot" {
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linux (\${archboot})/boot/vmlts ro \${_kernel_params}
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initrd (\${archboot})/boot/initrdlts.img
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}
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menuentry "Arch Linux LTS (x86_64) archboot" {
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linux (\${archboot})/boot/vm64lts ro \${_kernel_params}
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initrd (\${archboot})/boot/initrd64lts.img
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}
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EOF
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echo
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## Remove some files not needed for me - config files not modified - for now
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if [ ${RM_UNWANTED} = "1" ]
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then
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## Remove all i686 pkgs
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rm -rf ${archboot_ext}/core-i686/
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## Remove all x86_64 pkgs
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rm -rf ${archboot_ext}/core-x86_64/
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## Remove all other common pkgs
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rm -rf ${archboot_ext}/core-any/
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## Remove all LTS kernels and initramfs
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rm ${archboot_ext}/boot/vmlts
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rm ${archboot_ext}/boot/initrdlts.img
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rm ${archboot_ext}/boot/vm64lts
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rm ${archboot_ext}/boot/initrd64lts.img
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## Remove i686 kernel and initramfs
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rm ${archboot_ext}/boot/vmlinuz
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rm ${archboot_ext}/boot/initrd.img
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## Remove clamav files
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rm -rf ${archboot_ext}/clamav/
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fi
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## First create the BIOS+UEFI ISO
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cd ${wd}
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echo
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## Generate the BIOS+UEFI ISO image using xorriso (community/libisoburn package) in mkisofs emulation mode
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## Exaggerated xorriso command
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xorriso -as mkisofs -rock -full-iso9660-filenames -omit-version-number -disable-deep-relocation -joliet -allow-leading-dots -volid "ARCHBOOT" -eltorito-boot boot/syslinux/isolinux.bin -eltorito-catalog boot/syslinux/boot.cat -no-emul-boot -boot-load-size 4 -boot-info-table -eltorito-alt-boot --efi-boot efi/grub2/grub2_efi.bin -no-emul-boot -output ${wd}/${iso_name}_isohybrid.iso ${archboot_ext}/ > /dev/null 2>&1
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## Usually used xorriso command style
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# xorriso -as mkisofs -R -l -N -D -J -L -V "ARCHBOOT" -b boot/syslinux/isolinux.bin -c boot/syslinux/boot.cat -no-emul-boot -boot-load-size 4 -boot-info-table -eltorito-alt-boot --efi-boot efi/grub2/grub2_efi.bin -no-emul-boot -o ${wd}/${iso_name}_isohybrid.iso ${archboot_ext}/ > /dev/null 2>&1
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echo
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## Generate a isohybrid image using syslinux
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isohybrid ${wd}/${iso_name}_isohybrid.iso
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echo
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## Second create the FAT32 USB image using syslinux
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## The below commands have been copied from archboot-usbimage-helper.sh with slight modifications
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## Output USB image
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DISKIMG=${wd}/${iso_name}_usb.img
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## Contents of the USB image
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IMGROOT=${archboot_ext}
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## Create required temp dirs
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TMPDIR=$(mktemp -d)
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FSIMG=$(mktemp)
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echo
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## Determine the required size of the USB image
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rootsize=$(du -bs ${IMGROOT}|cut -f1)
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IMGSZ=$(( (${rootsize}*102)/100/512 + 1)) ## image size in sectors
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echo
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## Create a FAT32 image with volume name "ARCHBOOT"
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dd if=/dev/zero of=${FSIMG} bs=512 count=${IMGSZ}
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echo
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mkfs.vfat -S 512 -F32 -n "ARCHBOOT" ${FSIMG}
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echo
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## Mount the FAT32 image at the created temp dir
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LOOP_DEVICE2=$(losetup --show --find ${FSIMG})
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mount -o rw,users -t vfat ${LOOP_DEVICE2} ${TMPDIR}
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echo
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## Copy the contents of the ISO to the USB image
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cp -r ${IMGROOT}/* ${TMPDIR}
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echo
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umount ${TMPDIR}
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losetup --detach ${LOOP_DEVICE2}
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echo
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## Create the final USB image
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cat ${FSIMG} > ${DISKIMG}
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echo
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## Install syslinux into the image
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syslinux ${DISKIMG}
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echo
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rm -rf ${TMPDIR} ${FSIMG}
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echo
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set +x
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unset archboot_ver
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unset wd
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unset archboot_ext
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unset iso_name
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unset grub2_name
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unset GRUB2_MODULES
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unset MKTEMP_TEMPLATE
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unset RM_UNWANTED
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