run_archiso.sh

   1 #!/usr/bin/env bash
   2 #
   3 # Copyright (C) 2020 David Runge <dvzrv@archlinux.org>
   4 #
   5 # SPDX-License-Identifier: GPL-3.0-or-later
   6 #
   7 # A simple script to run an archiso image using qemu. The image can be booted
   8 # using BIOS or UEFI.
   9 #
  10 # Requirements:
  11 # - qemu
  12 # - edk2-ovmf (when UEFI booting)
  13
  14
  15 set -eu
  16
  17 print_help() {
  18     cat << EOF
  19 Usage:
  20     run_archiso [options]
  21 Options:
  22     -b              set boot type to 'bios' (default)
  23     -h              print help
  24     -i [image]      image to boot into
  25     -s              use secure boot (only relevant when using UEFI)
  26     -u              set boot type to 'uefi'
  27 Example:
  28     Run an image using UEFI:
  29     $ run_archiso -u -i archiso-2020.05.23-x86_64.iso
  30 EOF
  31 }
  32
  33 cleanup_working_dir() {
  34     if [ -d "${working_dir}" ]; then
  35         rm -rf "${working_dir}"
  36     fi
  37 }
  38
  39 copy_ovmf_vars() {
  40     if [ ! -f /usr/share/edk2-ovmf/x64/OVMF_VARS.fd ]; then
  41         echo "ERROR: OVMF_VARS.fd not found. Install edk2-ovmf."
  42         exit 1
  43     fi
  44     cp -av /usr/share/edk2-ovmf/x64/OVMF_VARS.fd "${working_dir}"
  45 }
  46
  47 check_image() {
  48     if [ -z "$image" ]; then
  49         echo "ERROR: Image name can not be empty."
  50         exit 1
  51     fi
  52     if [ ! -f "$image" ]; then
  53         echo "ERROR: Image file ($image) does not exist."
  54         exit 1
  55     fi
  56 }
  57
  58 run_image() {
  59     [ "$boot_type" == "bios" ] && run_image_using_bios
  60     [ "$boot_type" == "uefi" ] && run_image_using_uefi
  61 }
  62
  63 run_image_using_bios() {
  64     qemu-system-x86_64 \
  65         -boot order=d,menu=on,reboot-timeout=5000 \
  66         -m size=3072,slots=0,maxmem=$((3072*1024*1024)) \
  67         -k en \
  68         -name archiso,process=archiso_0 \
  69         -drive file="${image}",media=cdrom,readonly=on,if=virtio \
  70         -device virtio-net-pci,netdev=net0 -netdev user,id=net0 \
  71         -enable-kvm \
  72         -no-reboot
  73 }
  74
  75 run_image_using_uefi() {
  76     local ovmf_code=/usr/share/edk2-ovmf/x64/OVMF_CODE.fd
  77     local secure_boot_state=off
  78     copy_ovmf_vars
  79     if [ "${secure_boot}" == "yes" ]; then
  80         echo "Using Secure Boot"
  81         ovmf_code=/usr/share/edk2-ovmf/x64/OVMF_CODE.secboot.fd
  82         secure_boot_state=on
  83     fi
  84     qemu-system-x86_64 \
  85         -boot order=d,menu=on,reboot-timeout=5000 \
  86         -m size=3072,slots=0,maxmem=$((3072*1024*1024)) \
  87         -k en \
  88         -name archiso,process=archiso_0 \
  89         -drive file="${image}",media=cdrom,readonly=on,if=virtio \
  90         -drive if=pflash,format=raw,unit=0,file="${ovmf_code}",readonly \
  91         -drive if=pflash,format=raw,unit=1,file="${working_dir}/OVMF_VARS.fd" \
  92         -machine type=q35,smm=on,accel=kvm \
  93         -global driver=cfi.pflash01,property=secure,value="${secure_boot_state}" \
  94         -global ICH9-LPC.disable_s3=1  \
  95         -device virtio-net-pci,netdev=net0 -netdev user,id=net0 \
  96         -enable-kvm \
  97         -no-reboot
  98 }
  99
 100 set_image() {
 101     if [ -z "$image" ]; then
 102         echo "ERROR: Image name can not be empty."
 103         exit 1
 104     fi
 105     if [ ! -f "$image" ]; then
 106         echo "ERROR: Image ($image) does not exist."
 107         exit 1
 108     fi
 109     image="$1"
 110 }
 111
 112 image=""
 113 boot_type="bios"
 114 secure_boot="no"
 115 working_dir="$(mktemp -d)"
 116 trap cleanup_working_dir EXIT
 117
 118 if [ ${#@} -gt 0 ]; then
 119     while getopts 'bhi:su' flag; do
 120         case "${flag}" in
 121             b)
 122                 boot_type=bios
 123                 ;;
 124             h)
 125                 print_help
 126                 exit 0
 127                 ;;
 128             i)
 129                 image="$OPTARG"
 130                 ;;
 131             u)
 132                 boot_type=uefi
 133                 ;;
 134             s)
 135                 secure_boot=yes
 136                 ;;
 137             *)
 138                 echo "Error: Wrong option. Try 'run_archiso -h'."
 139                 exit 1
 140                 ;;
 141         esac
 142     done
 143 else
 144     print_help
 145     exit 1
 146 fi
 147
 148 check_image
 149 run_image