code.delx.au - monosys/blob - 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 print_grub_cfg {
  95     cat <<EOT
  96 insmod all_video
  97 insmod part_msdos
  98 insmod progress
  99 insmod regexp
 100 search --set=root --label $PARTITION_LABEL
 101
 102 function setup_arch {
 103   menuentry "\$1" {
 104     loopback loop \$1
 105     linux (loop)/arch/boot/x86_64/vmlinuz img_label=${PARTITION_LABEL} img_loop=\$1 archisobasedir=arch earlymodules=loop
 106     initrd (loop)/arch/boot/x86_64/archiso.img
 107   }
 108 }
 109 for iso in /archlinux-*.iso; do
 110   if [ -f "\$iso" ]; then
 111     setup_arch \$iso
 112   fi
 113 done
 114
 115 function setup_debian {
 116   menuentry "\$1" {
 117     linux \$1/vmlinuz
 118     initrd \$1/initrd.gz
 119   }
 120 }
 121 for d in /debian-*-hd-media; do
 122   if [ -d "\$d" ]; then
 123     setup_debian \$d
 124   fi
 125 done
 126
 127 if [ -f /memdisk -a -f /FD12LITE.zip ]; then
 128   menuentry /FD12LITE.zip {
 129     if [ \${grub_platform} = pc ]; then
 130       linux16 /memdisk raw
 131       initrd16 /FD12LITE.zip
 132     else
 133       echo "FreeDOS only works with BIOS boot."
 134       sleep 3
 135     fi
 136   }
 137 fi
 138
 139 function setup_fedora {
 140   menuentry "\$1" {
 141     loopback loop \$1
 142     probe -s iso_label -l (loop)
 143     linux (loop)/isolinux/vmlinuz root=live:CDLABEL=\$iso_label rd.live.image quiet iso-scan/filename=\$1
 144     initrd (loop)/isolinux/initrd.img
 145   }
 146 }
 147 for iso in /Fedora-Workstation-Live-*.iso; do
 148   if [ -f "\$iso" ]; then
 149     setup_fedora \$iso
 150   fi
 151 done
 152
 153 function setup_ubuntu {
 154   menuentry "\$1" {
 155     loopback loop \$1
 156     linux (loop)/casper/vmlinuz boot=casper quiet iso-scan/filename=\$1
 157     initrd (loop)/casper/initrd*
 158   }
 159 }
 160 for iso in /ubuntu-*-desktop-*.iso; do
 161   if [ -f "\$iso" ]; then
 162     setup_ubuntu \$iso
 163   fi
 164 done
 165
 166 EOT
 167 }
 168
 169 CMD="cmd_${1:-}"
 170 shift || true
 171
 172 if [ "$(type -t -- "$CMD")" = "function" ]; then
 173     "${CMD}" "$@"
 174 else
 175     echo "Usage: $0 [format|mount|grub|grubcfg|freedos|umount]"
 176     exit 1
 177 fi