setup-mbr-ivi

   1 #!/bin/sh -efu
   2
   3 # Copyright 2013 Intel Corporation
   4 # Author: Artem Bityutskiy
   5 # License: GPLv2
   6
   7 #
   8 # This is a simple script which installs the extlinux bootloader and creates
   9 # a valid extlinux.conf configuration file. This script requires a number of
  10 # environment variables to be defined. Namely:
  11 #
  12 # 1. INSTALLERFW_PART_COUNT - count of partitions
  13 # 2. INSTALLERFW_PARTX_MOUNTPOINT - mount point of partition number X
  14 #    (0 <= X < $INSTALLERFW_PART_COUNT)
  15 # 3. INSTALLERFW_PARTX_PARTUUID - GPT GUID (AKA PARTUUID) of partition number X
  16 # 4. INSTALLERFW_MOUNT_PREFIX - where the target partitions are mounted (the
  17 #    "root" directory of the file-system we install extlinux to)
  18 # 5. INSTALLERFW_PARTX_DISK_DEVNODE_NOW - the disk device node which contains
  19 #    partition number X
  20 # 6. INSTALLERFW_PARTX_DEVNODE_NOW - device node for partition number X
  21
  22 PROG="setup-mbr-ivi"
  23
  24 # Print debugging information
  25 print_debug_info()
  26 {
  27         printf "%s\n" "INSTALLERFW_MOUNT_PREFIX=$INSTALLERFW_MOUNT_PREFIX"
  28         printf "%s\n" "INSTALLERFW_PART_COUNT=$INSTALLERFW_PART_COUNT"
  29         printf "%s\n" "INSTALLERFW_PART0_FSOPTS=$INSTALLERFW_PART0_FSOPTS"
  30         printf "%s\n" "INSTALLERFW_PART0_FSTYPE=$INSTALLERFW_PART0_FSTYPE"
  31         printf "%s\n" "INSTALLERFW_PART0_UUID=$INSTALLERFW_PART0_UUID"
  32         printf "%s\n" "INSTALLERFW_PART0_MOUNTPOINT=$INSTALLERFW_PART0_MOUNTPOINT"
  33         printf "%s\n" "INSTALLERFW_PART0_ALIGN=$INSTALLERFW_PART0_ALIGN"
  34         printf "%s\n" "INSTALLERFW_PART0_BOOTFLAG=$INSTALLERFW_PART0_BOOTFLAG"
  35         printf "%s\n" "INSTALLERFW_PART0_SIZE=$INSTALLERFW_PART0_SIZE"
  36         printf "%s\n" "INSTALLERFW_PART0_TYPE_ID=$INSTALLERFW_PART0_TYPE_ID"
  37         printf "%s\n" "INSTALLERFW_PART0_LABEL=$INSTALLERFW_PART0_LABEL"
  38         printf "%s\n" "INSTALLERFW_PART0_DEVNODE=$INSTALLERFW_PART0_DEVNODE"
  39         printf "%s\n" "INSTALLERFW_PART0_DISK_DEVNODE=$INSTALLERFW_PART0_DISK_DEVNODE"
  40         printf "%s\n" "INSTALLERFW_PART0_DEVNODE_NOW=$INSTALLERFW_PART0_DEVNODE_NOW"
  41         printf "%s\n" "INSTALLERFW_PART0_DISK_DEVNODE_NOW=$INSTALLERFW_PART0_DISK_DEVNODE_NOW"
  42         printf "%s\n" "INSTALLERFW_PART0_PARTUUID=$INSTALLERFW_PART0_PARTUUID"
  43         printf "%s\n" "INSTALLERFW_PART1_FSOPTS=$INSTALLERFW_PART1_FSOPTS"
  44         printf "%s\n" "INSTALLERFW_PART1_FSTYPE=$INSTALLERFW_PART1_FSTYPE"
  45         printf "%s\n" "INSTALLERFW_PART1_UUID=$INSTALLERFW_PART1_UUID"
  46         printf "%s\n" "INSTALLERFW_PART1_MOUNTPOINT=$INSTALLERFW_PART1_MOUNTPOINT"
  47         printf "%s\n" "INSTALLERFW_PART1_ALIGN=$INSTALLERFW_PART1_ALIGN"
  48         printf "%s\n" "INSTALLERFW_PART1_BOOTFLAG=$INSTALLERFW_PART1_BOOTFLAG"
  49         printf "%s\n" "INSTALLERFW_PART1_SIZE=$INSTALLERFW_PART1_SIZE"
  50         printf "%s\n" "INSTALLERFW_PART1_TYPE_ID=$INSTALLERFW_PART1_TYPE_ID"
  51         printf "%s\n" "INSTALLERFW_PART1_LABEL=$INSTALLERFW_PART1_LABEL"
  52         printf "%s\n" "INSTALLERFW_PART1_DEVNODE=$INSTALLERFW_PART1_DEVNODE"
  53         printf "%s\n" "INSTALLERFW_PART1_DISK_DEVNODE=$INSTALLERFW_PART1_DISK_DEVNODE"
  54         printf "%s\n" "INSTALLERFW_PART1_DEVNODE_NOW=$INSTALLERFW_PART1_DEVNODE_NOW"
  55         printf "%s\n" "INSTALLERFW_PART1_DISK_DEVNODE_NOW=$INSTALLERFW_PART1_DISK_DEVNODE_NOW"
  56         printf "%s\n" "INSTALLERFW_PART1_PARTUUID=$INSTALLERFW_PART1_PARTUUID"
  57         printf "%s\n" "INSTALLERFW_DISTRO_NAME=$INSTALLERFW_DISTRO_NAME"
  58         printf "%s\n" "INSTALLERFW_KERNEL_OPTS=$INSTALLERFW_KERNEL_OPTS"
  59         printf "%s\n" "INSTALLERFW_INSTALLER_NAME=$INSTALLERFW_INSTALLER_NAME"
  60         printf "%s\n" "INSTALLERFW_PTABLE_FORMAT=$INSTALLERFW_PTABLE_FORMAT"
  61
  62         cat /proc/mounts
  63         ls -l /dev/
  64         ls -l /dev/mapper
  65 }
  66
  67 # This is a helper function which prints an error message and exits
  68 fatal()
  69 {
  70         printf "%s\n" "$PROG: error: $1" 1>&2
  71         exit 1
  72 }
  73
  74 #print_debug_info
  75
  76 # Make sure the installer framework variables are defined
  77 [ "${INSTALLERFW_PART_COUNT:+x}" == "x" ] ||
  78        fatal "installer framework environment variables not found"
  79
  80 # Find the required root and boot parition parameters
  81 pnum=0
  82 root_partuuid=
  83 boot_mountpoint=
  84
  85 while [ "$pnum" -lt "$INSTALLERFW_PART_COUNT" ]; do
  86         mountpoint="INSTALLERFW_PART${pnum}_MOUNTPOINT"
  87         mountpoint="$(eval printf "%s" '$'$mountpoint)"
  88
  89         # Find out all the required data for the root and boot partition
  90         if [ "$mountpoint" == "/" ]; then
  91                 root_partuuid="INSTALLERFW_PART${pnum}_PARTUUID"
  92                 root_partuuid="$(eval printf "%s" '$'$root_partuuid)"
  93         # The boot parition has to be at "/boot"
  94         elif [ "$mountpoint" == "/boot" ]; then
  95                 boot_mountpoint="$mountpoint"
  96
  97                 boot_devnode="INSTALLERFW_PART${pnum}_DEVNODE_NOW"
  98                 boot_devnode="$(eval printf "%s" '$'$boot_devnode)"
  99
 100                 mbr_devnode="INSTALLERFW_PART${pnum}_DISK_DEVNODE_NOW"
 101                 mbr_devnode="$(eval printf "%s" '$'$mbr_devnode)"
 102         fi
 103
 104         pnum="$((pnum+1))"
 105 done
 106
 107 bootdir="$INSTALLERFW_MOUNT_PREFIX/$boot_mountpoint"
 108 extlinuxdir="$bootdir/extlinux"
 109
 110 # Install extlinux
 111 extlinux_binary="$INSTALLERFW_MOUNT_PREFIX/sbin/extlinux"
 112 "$extlinux_binary" --device "$boot_devnode" -i "$extlinuxdir" || \
 113         fatal "cannot install extlinux to $extlinuxdir"
 114
 115 # Install the MBR part of extlinux
 116 mbr_bin="$INSTALLERFW_MOUNT_PREFIX/usr/share/syslinux/gptmbr.bin"
 117 dd if="$mbr_bin" of="$mbr_devnode" || \
 118         fatal "cannot install MBR: dd if=$mbr_bin of=$mbr_devnode"
 119
 120 # Make the newest kernel to be the one we boot
 121 newest_kernel="$(ls -1 "$bootdir" | grep "^vmlinuz-" | sort -r | head -n1)"
 122 ln -sf "$newest_kernel" "$bootdir/vmlinuz" || \
 123         fatal "cannot create symlink: $bootdir/vmlinuz --> $newest_kernel"
 124
 125 # Create the extlinux.conf file
 126 cat > "$extlinuxdir/extlinux.conf" <<EOF
 127 prompt 0
 128 timeout 0
 129 default tizen
 130 label tizen
 131         linux ../vmlinuz
 132         append $INSTALLERFW_KERNEL_OPTS root=PARTUUID=$root_partuuid
 133 EOF