build_usb.sh

   1 #!/usr/bin/bash
   2
   3 set -e
   4
   5 #
   6 # This file and its contents are supplied under the terms of the
   7 # Common Development and Distribution License ("CDDL"), version 1.0.
   8 # You may only use this file in accordance with the terms of version
   9 # 1.0 of the CDDL.
  10 #
  11 # A full copy of the text of the CDDL should have accompanied this
  12 # source.  A copy of the CDDL is also available via the Internet at
  13 # http://www.illumos.org/license/CDDL.
  14 #
  15
  16 #
  17 # Copyright 2017 OmniTI Computer Consulting, Inc. All rights reserved.
  18 #
  19
  20 #
  21 # Build a USB installer using the Kayak tools.
  22 #
  23
  24 if [[ `id -u` != "0" ]]; then
  25         echo "You must be root to run this script."
  26         exit 1
  27 fi
  28
  29 if [[ -z $BUILDSEND_MP ]]; then
  30         echo "Using /rpool/kayak_image for BUILDSEND_MP"
  31         BUILDSEND_MP=/rpool/kayak_image
  32 fi
  33
  34 if [[ -z $VERSION ]]; then
  35         echo "\$VERSION not set" >&2
  36         exit 1
  37 fi
  38
  39 # Many of these depend on sufficient space in /tmp by default.  Please
  40 # modify as you deem appropriate.
  41 PROTO=/tmp/proto
  42 KAYAK_ROOTBALL=$BUILDSEND_MP/miniroot.gz
  43 KAYAK_ROOT=/tmp/miniroot.$$
  44 KR_FILE=/tmp/kr.$$
  45 MNT=/mnt
  46 UFS_LOFI=/tmp/boot_archive
  47 LOFI_SIZE=2000M
  48 DST_IMG=${BUILDSEND_MP}/${VERSION}.img
  49 ZFS_IMG=$BUILDSEND_MP/kayak_${VERSION}.zfs.bz2
  50
  51 cleanup() {
  52     echo "cleaning up"
  53     set +e
  54     umount $MNT 2>/dev/null
  55     umount $KAYAK_ROOT 2>/dev/null
  56     rm -rf $PROTO $UFS_LOFI $KR_FILE $KAYAK_ROOT
  57     lofiadm -d $DST_IMG 2>/dev/null
  58     lofiadm -d $LOFI_PATH 2>/dev/null
  59     lofiadm -d $LOFI_RPATH 2>/dev/null
  60     lofiadm -d $KR_FILE 2>/dev/null
  61 }
  62 trap cleanup 0 INT TERM
  63
  64 # Create a UFS lofi file and mount the UFS filesystem in $MNT.  This will
  65 # form the boot_archive for the USB.
  66 mkfile $LOFI_SIZE $UFS_LOFI
  67 LOFI_PATH=`lofiadm -a $UFS_LOFI`
  68 echo 'y' | newfs $LOFI_PATH
  69 mount $LOFI_PATH $MNT
  70
  71 # Clone the already-created Kayak miniroot and copy it into both $MNT, and
  72 # into a now-created $PROTO. $PROTO will form the directory that gets
  73 # sprayed onto the USB.
  74 gunzip -c $KAYAK_ROOTBALL > $KR_FILE
  75 LOFI_RPATH=`lofiadm -a $KR_FILE`
  76 mkdir $KAYAK_ROOT
  77 mount $LOFI_RPATH $KAYAK_ROOT
  78 tar -cf - -C $KAYAK_ROOT . | tar -xf - -C $MNT
  79 mkdir $PROTO
  80 tar -cf - -C $KAYAK_ROOT . | tar -xf - -C $PROTO
  81 umount $KAYAK_ROOT
  82 rmdir $KAYAK_ROOT
  83 lofiadm -d $LOFI_RPATH
  84 rm $KR_FILE
  85
  86 #
  87 # Put additional goodies into the boot-archive on $MNT, which is
  88 # what'll be / (via ramdisk) once one boots the USB.
  89 #
  90
  91 # The full ZFS image (also already-created) for actual installation.
  92 cp $ZFS_IMG $MNT/root/.
  93
  94 # A cheesy way to get the boot menu to appear at boot time.
  95 cp -p ./takeover-console $MNT/kayak/.
  96 cat <<EOF > $MNT/root/.bashrc
  97 export PATH=/usr/bin:/usr/sbin:/sbin
  98 export HOME=/root
  99 EOF
 100 # Have initialboot muck with the console login service to make an interactive
 101 # installer get invoked.
 102 cat <<EOF > $MNT/.initialboot
 103 /usr/sbin/svccfg -s console-login:default setprop startd/need_session = boolean: true
 104 /usr/sbin/svcadm refresh console-login:default
 105 /usr/sbin/svcadm restart console-login:default
 106 EOF
 107 cat <<EOF > $MNT/lib/svc/method/console-login
 108 #!/bin/bash
 109
 110 # CHEESY way to get the kayak-menu running w/o interference.
 111 export TERM=sun-color
 112 /kayak/takeover-console /kayak/kayak-menu.sh
 113 EOF
 114 chmod 0755 $MNT/lib/svc/method/console-login
 115
 116 # Refresh the devices on the miniroot.
 117 devfsadm -r $MNT
 118
 119 #
 120 # The USB's miniroot is going to be larger than the PXE miniroot.  To that
 121 # end, some files not listed in the exception list do need to show up on
 122 # the miniroot.  Use PREBUILT_ILLUMOS if available, or the current system
 123 # if not.
 124 #
 125 from_one_to_other() {
 126     dir=$1
 127     if [[ -z $PREBUILT_ILLUMOS || ! -d $PREBUILT_ILLUMOS/proto/root_i386/$dir ]]
 128     then
 129         FROMDIR=/
 130     else
 131         FROMDIR=$PREBUILT_ILLUMOS/proto/root_i386
 132     fi
 133
 134     shift
 135     tar -cf - -C $FROMDIR/$dir ${@:-.} | tar -xf - -C $MNT/$dir
 136 }
 137
 138 # Add from_one_to_other for any directory {file|subdir file|subdir ...} you need
 139 from_one_to_other usr/share/lib/zoneinfo
 140 from_one_to_other usr/share/lib/keytables
 141 from_one_to_other usr/share/lib/terminfo
 142 from_one_to_other usr/gnu/share/terminfo
 143 from_one_to_other usr/sbin ping
 144 from_one_to_other usr/bin netstat
 145
 146 cat <<EOF > $PROTO/boot/loader.conf.local
 147 loader_menu_title="Welcome to the unleashed installer"
 148 autoboot_delay=5
 149 console="ttya,text"
 150 EOF
 151
 152 #
 153 # Okay, we've populated the new miniroot.  Close it up and install it on $PROTO
 154 # as the boot archive.
 155 #
 156 umount $MNT
 157 lofiadm -d $LOFI_PATH
 158 gzip -c $UFS_LOFI > $PROTO/platform/i86pc/amd64/boot_archive
 159 digest -a sha1 $UFS_LOFI > $PROTO/platform/i86pc/amd64/boot_archive.hash
 160 rm -rf $PROTO/{usr,bin,sbin,lib,kernel}
 161 protosize=$(du -sm $PROTO/.|cut -f1)
 162 imagesize=$((protosize * 11/10))
 163
 164 rm -f "${DST_IMG}"
 165 mkfile -n ${imagesize}M "${DST_IMG}"
 166 devs="$(lofiadm -la "${DST_IMG}")"
 167 rdevs="${devs/dsk/rdsk}"
 168 s0devs="${devs/p0/s0}"
 169 rs0devs="${rdevs/p0/s0}"
 170 rs2devs="${rdevs/p0/s2}"
 171 fdisk -B "${rdevs}"
 172 prtvtoc "${rs2devs}" | nawk '
 173 /^[^\*]/ { r = $1; for(n = 1; n <= NF; n++) vtoc[r,n] = $n }
 174 END {
 175 vtoc[0,1] = 0;
 176 vtoc[0,2] = 2;
 177 vtoc[0,3] = 00;
 178 vtoc[0,4] = vtoc[8,6] + 1;
 179 vtoc[0,5] = vtoc[2,6] - vtoc[8,6];
 180 vtoc[0,6] = vtoc[2,6];
 181 printf("\t%d\t%d\t%02d\t%d\t%d\t%d\n",
 182         vtoc[0,1], vtoc[0,2], vtoc[0,3], vtoc[0,4], vtoc[0,5], vtoc[0,6]);
 183 printf("\t%d\t%d\t%02d\t%d\t%d\t%d\n",
 184         vtoc[2,1], vtoc[2,2], vtoc[2,3], vtoc[2,4], vtoc[2,5], vtoc[2,6]);
 185 printf("\t%d\t%d\t%02d\t%d\t%d\t%d\n",
 186         vtoc[8,1], vtoc[8,2], vtoc[8,3], vtoc[8,4], vtoc[8,5], vtoc[8,6]);
 187 }' | fmthard -s- "${rs2devs}"
 188 # newfs doesn't ask questions if stdin isn't a tty.
 189 newfs "${rs0devs}" </dev/null
 190 mount -o nologging "${s0devs}" $MNT
 191 tar cf - -C $PROTO . | tar xf - -C $MNT
 192 installboot -mf "${MNT}/boot/pmbr" "${MNT}/boot/gptzfsboot" "${rs0devs}"
 193
 194 chmod 0444 $DST_IMG
 195 echo "$DST_IMG is ready"
 196 trap '' 0
 197 cleanup || true