build_iso.sh

   1 #!/usr/bin/bash
   2
   3 # {{{ CDDL HEADER
   4 # This file and its contents are supplied under the terms of the
   5 # Common Development and Distribution License ("CDDL"), version 1.0.
   6 # You may only use this file in accordance with the terms of version
   7 # 1.0 of the CDDL.
   8 #
   9 # A full copy of the text of the CDDL should have accompanied this
  10 # source.  A copy of the CDDL is also available via the Internet at
  11 # http://www.illumos.org/license/CDDL.
  12 # }}}
  13
  14 #
  15 # Copyright 2017 OmniTI Computer Consulting, Inc. All rights reserved.
  16 # Copyright 2018 OmniOS Community Edition (OmniOSce) Association.
  17 #
  18
  19 #
  20 # Build an ISO installer using the Kayak tools.
  21 #
  22
  23 if [ `id -u` != "0" ]; then
  24         echo "You must be root to run this script."
  25         exit 1
  26 fi
  27
  28 if [ -z "$BUILDSEND_MP" ]; then
  29         echo "Using /rpool/kayak_image for BUILDSEND_MP"
  30         BUILDSEND_MP=/rpool/kayak_image
  31 fi
  32
  33 if [ -z "$VERSION" ]; then
  34         echo "VERSION not set." >&2
  35         exit 1
  36 fi
  37 echo "Using version $VERSION..."
  38
  39 stage()
  40 {
  41         echo "***"
  42         echo "*** $*"
  43         echo "***"
  44 }
  45
  46 # Allow temporary directory override
  47 : ${TMPDIR:=/tmp}
  48
  49 KAYAK_MINIROOT=$BUILDSEND_MP/miniroot.gz
  50 ZFS_IMG=$BUILDSEND_MP/kayak_${VERSION}.zfs.bz2
  51
  52 [ ! -f $KAYAK_MINIROOT -o ! -f $ZFS_IMG ] && echo "Missing files." && exit 1
  53
  54 ISO_ROOT=$TMPDIR/iso_root
  55 BA_ROOT=$TMPDIR/boot_archive
  56
  57 KAYAK_ROOT=$TMPDIR/miniroot.$$
  58 KR_FILE=$TMPDIR/kr.$$
  59 MNT=/mnt
  60 BA_SIZE=300M
  61 DST_ISO=$BUILDSEND_MP/${VERSION}.iso
  62
  63 #############################################################################
  64 #
  65 # The kayak mini-root is used for both the ISO root filesystem and for the
  66 # miniroot that is loaded and mounted on / when booted.
  67 #
  68
  69 set -o errexit
  70
  71 mkdir $KAYAK_ROOT
  72 mkdir $ISO_ROOT
  73
  74 # Create a UFS lofi file and mount the UFS filesystem in $MNT. This will
  75 # form the boot_archive for the ISO.
  76
  77 stage "Mounting source miniroot"
  78 # Uncompress and mount the miniroot
  79 gunzip -c $KAYAK_MINIROOT > $KR_FILE
  80 LOFI_RPATH=`lofiadm -a $KR_FILE`
  81 mount $LOFI_RPATH $KAYAK_ROOT
  82
  83 stage "Creating UFS image for new miniroot"
  84 mkfile $BA_SIZE $BA_ROOT
  85 LOFI_PATH=`lofiadm -a $BA_ROOT`
  86 echo 'y' | newfs $LOFI_PATH
  87 mount $LOFI_PATH $MNT
  88
  89 # Copy the files from the miniroot to the new miniroot...
  90 sz=`du -sh $KAYAK_ROOT | awk '{print $1}'`
  91 stage "Adding files to new miniroot"
  92 tar -cf - -C $KAYAK_ROOT . | pv -s $sz | tar -xf - -C $MNT
  93 # ...and to the ISO root
  94 stage "Adding files to ISO root"
  95 tar -cf - -C $KAYAK_ROOT . | pv -s $sz | tar -xf - -C $ISO_ROOT
  96
  97 # Clean-up
  98 stage "Unmounting source miniroot"
  99 umount $KAYAK_ROOT
 100 rmdir $KAYAK_ROOT
 101 lofiadm -d $LOFI_RPATH
 102 rm $KR_FILE
 103
 104 # Place the full ZFS image into the ISO root so it does not form part of the
 105 # boot archive (otherwise the boot seems to hang for several minutes while
 106 # the miniroot is loaded)
 107
 108 stage "Adding ZFS image to ISO root"
 109 mkdir -p $ISO_ROOT/image
 110 pv $ZFS_IMG > $ISO_ROOT/image/`basename $ZFS_IMG`
 111 # Create a file to indicate that this is the right volume set on which to
 112 # find the image - see src/mount_media.c
 113 echo $VERSION > $ISO_ROOT/.volsetid
 114
 115 # Put additional files into the boot-archive on $MNT, which is
 116 # what will be / (via ramdisk) once the ISO is booted.
 117
 118 stage "Adding extra files to miniroot"
 119
 120 # Extra files
 121 cp -p \
 122     takeover-console \
 123     mount_media \
 124     $MNT/kayak/.
 125
 126 if [ -n "$REFRESH_KAYAK" ]; then
 127         # For testing, make sure files in miniroot are current
 128         for f in $MNT/kayak/*; do
 129                 [ -f "$f" ] || continue
 130                 echo "REFRESH $f"
 131                 cp `basename $f` $MNT/kayak
 132         done
 133 fi
 134
 135 cat <<EOF > $MNT/root/.bashrc
 136 export PATH=/usr/bin:/usr/sbin:/sbin
 137 export HOME=/root
 138 EOF
 139
 140 # Refresh the devices on the miniroot.
 141 devfsadm -r $MNT
 142
 143 #
 144 # The ISO's miniroot is going to be larger than the PXE miniroot. To that
 145 # end, some files not listed in the exception list do need to show up on
 146 # the miniroot. Use PREBUILT_ILLUMOS if available, or the current system
 147 # if not.
 148 #
 149 from_one_to_other() {
 150     dir=$1
 151
 152     FROMDIR=/
 153     [ -n "$PREBUILT_ILLUMOS" -a -d $PREBUILT_ILLUMOS/proto/root_i386/$dir ] \
 154         && FROMDIR=$PREBUILT_ILLUMOS/proto/root_i386
 155
 156     shift
 157     tar -cf - -C $FROMDIR/$dir ${@:-.} | tar -xf - -C $MNT/$dir
 158 }
 159
 160 # Add from_one_to_other for any directory {file|subdir file|subdir ...} you need
 161 from_one_to_other usr/share/lib/zoneinfo
 162 from_one_to_other usr/share/lib/keytables
 163 from_one_to_other usr/share/terminfo
 164 from_one_to_other usr/sbin ping
 165 from_one_to_other usr/bin netstat
 166
 167 # Remind people this is the installer.
 168 cat <<EOF > $ISO_ROOT/boot/loader.conf.local
 169 loader_menu_title="Welcome to the Unleashed installer"
 170 autoboot_delay=10
 171 EOF
 172
 173 #
 174 # Okay, we've populated the new miniroot. Close it up and install it
 175 # on $ISO_ROOT as the boot archive.
 176 #
 177 stage "Miniroot size"
 178 df -h $MNT
 179 stage "Unmounting boot archive image"
 180 umount $MNT
 181 lofiadm -d $LOFI_PATH
 182 stage "Installing boot archive"
 183 pv $BA_ROOT | gzip -9c > $ISO_ROOT/platform/i86pc/boot_archive.gz
 184 ls -lh $ISO_ROOT/platform/i86pc/boot_archive.gz | awk '{print $5}'
 185 digest -a sha1 $BA_ROOT \
 186     > $ISO_ROOT/platform/i86pc/boot_archive.hash
 187 rm -f $BA_ROOT
 188 stage "Removing unecessary files from ISO root"
 189 rm -rf $ISO_ROOT/{usr,bin,sbin,lib,kernel}
 190 stage "ISO root size: `du -sh $ISO_ROOT/.`"
 191
 192 # And finally, burn the ISO.
 193 LC_ALL=C mkisofs -N -l -R -U -d -D \
 194         -o $DST_ISO \
 195         -b boot/cdboot \
 196         -c .catalog \
 197         -no-emul-boot \
 198         -boot-load-size 4 \
 199         -boot-info-table \
 200         -allow-multidot \
 201         -no-iso-translate \
 202         -cache-inodes \
 203         -V "Unleashed $VERSION" \
 204         $ISO_ROOT
 205
 206 rm -rf $ISO_ROOT
 207 stage "$DST_ISO is ready"
 208 ls -lh $DST_ISO
 209
 210 # Vim hints
 211 # vim:fdm=marker