code.delx.au - monosys/blob - hacks/multiboot-setup

   1 #!/bin/bash
   2
   3 set -eu
   4
   5 PARTITION_LABEL_ESP="multibt-esp"
   6 PARTITION_LABEL_DATA="multiboot"
   7 MULTIBOOT_MNT="${MULTIBOOT_MNT:-/mnt/multiboot}"
   8
   9 function cmd_format {
  10     if [ ! -b "${1:-}" ]; then
  11         echo "Usage: $0 format /dev/sdX"
  12         exit 1
  13     fi
  14     set -x
  15
  16     sudo -k
  17     DISK_DEVICE="$1"
  18     print_sfdisk_command | sudo sfdisk --wipe always --wipe-partitions always "$DISK_DEVICE"
  19     udevadm settle
  20     sudo mkfs.vfat -n "${PARTITION_LABEL_ESP}" "/dev/disk/by-partlabel/${PARTITION_LABEL_ESP}"
  21     sudo mkfs.ext4 -L "${PARTITION_LABEL_DATA}" -E "root_owner=$(id -u):$(id -g)" "/dev/disk/by-partlabel/${PARTITION_LABEL_DATA}"
  22 }
  23
  24 function print_sfdisk_command {
  25     cat <<EOT
  26 label: gpt
  27 unit: sectors
  28
  29 size=10M, type=uefi, name="$PARTITION_LABEL_ESP"
  30 size=1M, type=21686148-6449-6E6F-744E-656564454649
  31 type=linux, name="$PARTITION_LABEL_DATA"
  32 EOT
  33 }
  34
  35 function cmd_grub {
  36     DISK_DEVICE="$(findmnt -n -o source "$MULTIBOOT_MNT" | sed 's/[0-9]*$//')"
  37     if [ ! -b "$DISK_DEVICE" ]; then
  38         echo "ERROR! Could not find disk to install bootloader. Try using mount."
  39         exit 1
  40     fi
  41     set -x
  42
  43     sudo -k
  44     install_grub_bios
  45     install_grub_efi
  46     install_grub_cfg
  47 }
  48
  49 function cmd_grubcfg {
  50     set -x
  51     install_grub_cfg
  52 }
  53
  54 function install_grub_bios {
  55     sudo grub-install \
  56         --target=i386-pc \
  57         --boot-directory="$MULTIBOOT_MNT" \
  58         "$DISK_DEVICE"
  59 }
  60
  61 function install_grub_efi {
  62     for arch in i386-efi x86_64-efi; do
  63         sudo grub-install \
  64             --target="$arch" \
  65             --no-nvram \
  66             --removable \
  67             --efi-directory="${MULTIBOOT_MNT}/EFI" \
  68             --boot-directory="$MULTIBOOT_MNT" \
  69             "$DISK_DEVICE"
  70     done
  71 }
  72
  73 function install_grub_cfg {
  74     if [[ -w "${MULTIBOOT_MNT}/grub/" ]]; then
  75         # We already have write access, no need to use sudo
  76         print_grub_cfg > "${MULTIBOOT_MNT}/grub/grub.cfg"
  77     else
  78         print_grub_cfg | sudo tee "${MULTIBOOT_MNT}/grub/grub.cfg" > /dev/null
  79     fi
  80 }
  81
  82 function cmd_mount {
  83     set -x
  84
  85     while sudo umount "/dev/disk/by-partlabel/${PARTITION_LABEL_ESP}" &> /dev/null; do true; done
  86     while sudo umount "/dev/disk/by-partlabel/${PARTITION_LABEL_DATA}" &> /dev/null; do true; done
  87     sudo mkdir -p "$MULTIBOOT_MNT"
  88     sudo mount "/dev/disk/by-partlabel/${PARTITION_LABEL_DATA}" "$MULTIBOOT_MNT"
  89     mkdir -p "${MULTIBOOT_MNT}/EFI"
  90     sudo mount "/dev/disk/by-partlabel/${PARTITION_LABEL_ESP}" "${MULTIBOOT_MNT}/EFI"
  91 }
  92
  93 function cmd_umount {
  94     set -x
  95
  96     sudo umount "${MULTIBOOT_MNT}/EFI" || true
  97     sudo umount "$MULTIBOOT_MNT" || true
  98     sudo rmdir "$MULTIBOOT_MNT"
  99 }
 100
 101 function cmd_freedos {
 102     set -x
 103
 104     local SYSLINUX_VERSION="6.03"
 105     local SYSLINUX_URL="https://www.kernel.org/pub/linux/utils/boot/syslinux/syslinux-${SYSLINUX_VERSION}.tar.gz"
 106     local FREEDOS_URL="https://www.ibiblio.org/pub/micro/pc-stuff/freedos/files/distributions/1.2/official/FD12LITE.zip"
 107
 108     curl -fL "$SYSLINUX_URL" | \
 109         tar xz --no-same-owner --strip-components=3 -C "$MULTIBOOT_MNT" \
 110         "syslinux-${SYSLINUX_VERSION}/bios/memdisk/memdisk"
 111
 112     curl -fL "$FREEDOS_URL" > "${MULTIBOOT_MNT}/FD12LITE.zip"
 113 }
 114
 115 function cmd_memtest {
 116     curl -fL -o "${MULTIBOOT_MNT}/memtest.tmp.zip" "https://memtest.org/download/v6.20/mt86plus_6.20_64.grub.iso.zip"
 117     unzip -d "$MULTIBOOT_MNT" "${MULTIBOOT_MNT}/memtest.tmp.zip"
 118     rm "${MULTIBOOT_MNT}/memtest.tmp.zip"
 119 }
 120
 121 function print_grub_cfg {
 122     cat <<EOT
 123 search --set=root --label $PARTITION_LABEL_DATA
 124
 125 insmod all_video
 126 insmod gfxterm
 127 loadfont unicode
 128 set gfxmode=1024x768
 129 terminal_output gfxterm
 130
 131 insmod part_msdos
 132 insmod progress
 133 insmod regexp
 134
 135 set maybe_quiet='quiet splash'
 136 set maybe_to_ram=''
 137
 138 menuentry "! Copy ISO image to ram before booting" {
 139   # copytoram is used by arch
 140   # toram is used by casper based images (tails, Ubuntu, etc)
 141   set maybe_to_ram="copytoram toram"
 142 }
 143
 144 menuentry "! Verbose" {
 145   set maybe_quiet=''
 146 }
 147
 148 function setup_arch {
 149   menuentry "\$1" {
 150     loopback loop \$1
 151     echo "Loading kernel..."
 152     linux (loop)/arch/boot/x86_64/vmlinuz-* img_label=${PARTITION_LABEL_DATA} img_loop=\$1 archisobasedir=arch earlymodules=loop \$maybe_to_ram \$maybe_quiet
 153     echo "Loading initrd (and microcode if they exist)..."
 154     initrd (loop)/arch/boot/*.img (loop)/arch/boot/x86_64/initramfs-*.img
 155   }
 156 }
 157 for iso in /archlinux-*.iso /isos/archlinux-*.iso; do
 158   if [ -f "\$iso" ]; then
 159     setup_arch \$iso
 160   fi
 161 done
 162
 163 function setup_debian {
 164   menuentry "\$1" {
 165     loopback loop \$1
 166     echo "Loading kernel..."
 167     linux (loop)/live/vmlinuz* boot=live components findiso=\$1 \$maybe_to_ram \$maybe_quiet
 168     echo "Loading initrd..."
 169     initrd (loop)/live/initrd*
 170   }
 171 }
 172 for iso in /debian-live-*.iso /isos/debian-live-*.iso; do
 173   if [ -f "\$iso" ]; then
 174     setup_debian \$iso
 175   fi
 176 done
 177
 178 if [ -f /memdisk -a -f /FD12LITE.zip ]; then
 179   menuentry /FD12LITE.zip {
 180     if [ \${grub_platform} = pc ]; then
 181       linux16 /memdisk raw
 182       initrd16 /FD12LITE.zip
 183     else
 184       echo "FreeDOS only works with BIOS boot."
 185       sleep 3
 186     fi
 187   }
 188 fi
 189
 190
 191 function setup_memtest {
 192   menuentry "\$1" {
 193     loopback loop \$1
 194     if [ \${grub_platform} = pc ]; then
 195       linux (loop)/boot/memtest
 196     else
 197       linux (loop)/EFI/BOOT/memtest
 198     fi
 199   }
 200 }
 201 for iso in /mt86plus*.grub.iso /isos/mt86plus*.grub.iso; do
 202   if [ -f "\$iso" ]; then
 203     setup_memtest \$iso
 204   fi
 205 done
 206
 207
 208 function setup_fedora {
 209   menuentry "\$1" {
 210     loopback loop \$1
 211     probe -s iso_label -l (loop)
 212     echo "Loading kernel..."
 213     linux (loop)/images/pxeboot/vmlinuz root=live:CDLABEL=\$iso_label rd.live.image iso-scan/filename=\$1 \$maybe_quiet
 214     echo "Loading initrd..."
 215     initrd (loop)/images/pxeboot/initrd.img
 216   }
 217 }
 218 for iso in /Fedora-Workstation-Live-*.iso /isos/Fedora-Workstation-Live-*.iso; do
 219   if [ -f "\$iso" ]; then
 220     setup_fedora \$iso
 221   fi
 222 done
 223
 224 function setup_ubuntu {
 225   menuentry "\$1" {
 226     loopback loop \$1
 227     set maybe_layerfs_path=''
 228     for f in minimal.standard.live.squashfs; do
 229       if [ -f "(loop)/casper/\$f" ]; then
 230         echo " \$f"
 231         set maybe_layerfs_path="layerfs-path=\$f"
 232         echo "Setting \$maybe_layerfs_path"
 233       fi
 234     done
 235     echo "Loading kernel..."
 236     linux (loop)/casper/vmlinuz* \$maybe_layerfs_path boot=casper iso-scan/filename=\$1 \$maybe_to_ram \$maybe_quiet
 237     echo "Loading initrd..."
 238     initrd (loop)/casper/initrd*
 239   }
 240 }
 241 for iso in /ubuntu-*-desktop-*.iso /isos/ubuntu-*-desktop-*.iso; do
 242   if [ -f "\$iso" ]; then
 243     setup_ubuntu \$iso
 244   fi
 245 done
 246
 247 function setup_tails {
 248   menuentry "\$1" {
 249     loopback loop \$1
 250     echo "Loading kernel..."
 251     linux (loop)/live/vmlinuz* initrd=/live/initrd.img boot=live config iso-scan/filename=\$1 findiso=\$1 nopersistence noprompt timezone=Etc/UTC noautologin module=Tails slab_nomerge slub_debug=FZP mce=0 vsyscall=none page_poison=1 init_on_free=1 mds=full,nosmt \$maybe_to_ram \$maybe_quiet
 252     echo "Loading initrd..."
 253     initrd (loop)/live/initrd*
 254   }
 255 }
 256 for iso in /tails-*.iso /isos/tails-*.iso; do
 257   if [ -f "\$iso" ]; then
 258     setup_tails \$iso
 259   fi
 260 done
 261
 262 EOT
 263 }
 264
 265 CMD="cmd_${1:-}"
 266 shift || true
 267
 268 if [ "$(type -t -- "$CMD")" = "function" ]; then
 269     "${CMD}" "$@"
 270 else
 271     echo "Usage: $0 [format|mount|grub|grubcfg|freedos|memtest|umount]"
 272     exit 1
 273 fi