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

   1 #!/bin/bash
   2
   3 set -eu
   4
   5 PARTITION_LABEL="multiboot"
   6 MULTIBOOT_MNT="/mnt/multiboot"
   7
   8 function cmd_format {
   9     if [ ! -b "${1:-}" ]; then
  10         echo "Usage: $0 format /dev/sdX"
  11         exit 1
  12     fi
  13     set -x
  14
  15     sudo -k
  16     DISK_DEVICE="$1"
  17     PARTITION_DEVICE="${DISK_DEVICE}1"
  18     echo -ne 'label: dos\ntype=c, bootable\n' | sudo sfdisk "$DISK_DEVICE"
  19     sudo mkfs.vfat -n "$PARTITION_LABEL" "$PARTITION_DEVICE"
  20 }
  21
  22 function cmd_grub {
  23     DISK_DEVICE="$(findmnt -n -o source "$MULTIBOOT_MNT" | sed 's/[0-9]*$//')"
  24     if [ ! -b "$DISK_DEVICE" ]; then
  25         echo "ERROR! Could not find disk to install bootloader. Try using mount."
  26         exit 1
  27     fi
  28     set -x
  29
  30     sudo -k
  31     install_grub_bios
  32     install_grub_efi
  33     install_grub_cfg
  34 }
  35
  36 function cmd_grubcfg {
  37     set -x
  38     install_grub_cfg
  39 }
  40
  41 function install_grub_bios {
  42     sudo grub-install \
  43         --target=i386-pc \
  44         --boot-directory="$MULTIBOOT_MNT" \
  45         "$DISK_DEVICE"
  46 }
  47
  48 function install_grub_efi {
  49     for arch in i386-efi x86_64-efi; do
  50         sudo grub-install \
  51             --target="$arch" \
  52             --no-nvram \
  53             --removable \
  54             --efi-directory="$MULTIBOOT_MNT" \
  55             --boot-directory="$MULTIBOOT_MNT" \
  56             "$DISK_DEVICE"
  57     done
  58 }
  59
  60 function install_grub_cfg {
  61     print_grub_cfg | sudo tee "${MULTIBOOT_MNT}/grub/grub.cfg" > /dev/null
  62 }
  63
  64 function cmd_mount {
  65     set -x
  66
  67     PARTITION_DEVICE="$(readlink -f "/dev/disk/by-label/${PARTITION_LABEL}")"
  68     sudo mkdir -p "$MULTIBOOT_MNT"
  69     while sudo umount "$PARTITION_DEVICE" &> /dev/null; do true; done
  70     sudo mount "$PARTITION_DEVICE" "$MULTIBOOT_MNT" -o "uid=$(whoami)"
  71 }
  72
  73 function cmd_umount {
  74     set -x
  75
  76     sudo umount "$MULTIBOOT_MNT"
  77     sudo rmdir "$MULTIBOOT_MNT"
  78 }
  79
  80 function cmd_freedos {
  81     set -x
  82
  83     local SYSLINUX_VERSION="6.03"
  84     local SYSLINUX_URL="https://www.kernel.org/pub/linux/utils/boot/syslinux/syslinux-${SYSLINUX_VERSION}.tar.gz"
  85     local FREEDOS_URL="http://www.freedos.org/download/download/FD12LITE.zip"
  86
  87     curl -fL "$SYSLINUX_URL" | \
  88         tar xz --no-same-owner --strip-components=3 -C "$MULTIBOOT_MNT" \
  89         "syslinux-${SYSLINUX_VERSION}/bios/memdisk/memdisk"
  90
  91     curl -fL "$FREEDOS_URL" > "${MULTIBOOT_MNT}/FD12LITE.zip"
  92 }
  93
  94 function cmd_memtest {
  95     curl -fL "https://www.memtest.org/download/5.01/memtest86+-5.01.bin.gz" | \
  96         zcat - > "${MULTIBOOT_MNT}/memtest.bin"
  97 }
  98
  99 function print_grub_cfg {
 100     cat <<EOT
 101 insmod all_video
 102 insmod part_msdos
 103 insmod progress
 104 insmod regexp
 105 search --set=root --label $PARTITION_LABEL
 106
 107 function setup_arch {
 108   menuentry "\$1" {
 109     loopback loop \$1
 110     linux (loop)/arch/boot/x86_64/vmlinuz img_label=${PARTITION_LABEL} img_loop=\$1 archisobasedir=arch earlymodules=loop
 111     initrd (loop)/arch/boot/x86_64/archiso.img
 112   }
 113 }
 114 for iso in /archlinux-*.iso; do
 115   if [ -f "\$iso" ]; then
 116     setup_arch \$iso
 117   fi
 118 done
 119
 120 function setup_debian {
 121   menuentry "\$1" {
 122     linux \$1/vmlinuz
 123     initrd \$1/initrd.gz
 124   }
 125 }
 126 for d in /debian-*-hd-media; do
 127   if [ -d "\$d" ]; then
 128     setup_debian \$d
 129   fi
 130 done
 131
 132 if [ -f /memdisk -a -f /FD12LITE.zip ]; then
 133   menuentry /FD12LITE.zip {
 134     if [ \${grub_platform} = pc ]; then
 135       linux16 /memdisk raw
 136       initrd16 /FD12LITE.zip
 137     else
 138       echo "FreeDOS only works with BIOS boot."
 139       sleep 3
 140     fi
 141   }
 142 fi
 143
 144 if [ -f /memtest.bin ]; then
 145   menuentry "/memtest" {
 146     linux16 /memtest.bin
 147   }
 148 fi
 149
 150 function setup_fedora {
 151   menuentry "\$1" {
 152     loopback loop \$1
 153     probe -s iso_label -l (loop)
 154     linux (loop)/isolinux/vmlinuz root=live:CDLABEL=\$iso_label rd.live.image quiet iso-scan/filename=\$1
 155     initrd (loop)/isolinux/initrd.img
 156   }
 157 }
 158 for iso in /Fedora-Workstation-Live-*.iso; do
 159   if [ -f "\$iso" ]; then
 160     setup_fedora \$iso
 161   fi
 162 done
 163
 164 function setup_ubuntu {
 165   menuentry "\$1" {
 166     loopback loop \$1
 167     linux (loop)/casper/vmlinuz* boot=casper quiet iso-scan/filename=\$1
 168     initrd (loop)/casper/initrd*
 169   }
 170 }
 171 for iso in /ubuntu-*-desktop-*.iso; do
 172   if [ -f "\$iso" ]; then
 173     setup_ubuntu \$iso
 174   fi
 175 done
 176
 177 EOT
 178 }
 179
 180 CMD="cmd_${1:-}"
 181 shift || true
 182
 183 if [ "$(type -t -- "$CMD")" = "function" ]; then
 184     "${CMD}" "$@"
 185 else
 186     echo "Usage: $0 [format|mount|grub|grubcfg|freedos|memtest|umount]"
 187     exit 1
 188 fi