release/amd64/mkisoimages.sh

   1 #!/bin/sh
   2 #
   3 # Module: mkisoimages.sh
   4 # Author: Jordan K Hubbard
   5 # Date:   22 June 2001
   6 #
   7 # $FreeBSD$
   8 #
   9 # This script is used by release/Makefile to build the (optional) ISO images
  10 # for a FreeBSD release.  It is considered architecture dependent since each
  11 # platform has a slightly unique way of making bootable CDs.  This script
  12 # is also allowed to generate any number of images since that is more of
  13 # publishing decision than anything else.
  14 #
  15 # Usage:
  16 #
  17 # mkisoimages.sh [-b] image-label image-name base-bits-dir [extra-bits-dir]
  18 #
  19 # Where -b is passed if the ISO image should be made "bootable" by
  20 # whatever standards this architecture supports (may be unsupported),
  21 # image-label is the ISO image label, image-name is the filename of the
  22 # resulting ISO image, base-bits-dir contains the image contents and
  23 # extra-bits-dir, if provided, contains additional files to be merged
  24 # into base-bits-dir as part of making the image.
  25
  26 set -e
  27
  28 scriptdir=$(dirname $(realpath $0))
  29 . ${scriptdir}/../../tools/boot/install-boot.sh
  30
  31 if [ -z $ETDUMP ]; then
  32         ETDUMP=etdump
  33 fi
  34
  35 if [ -z $MAKEFS ]; then
  36         MAKEFS=makefs
  37 fi
  38
  39 if [ -z $MKIMG ]; then
  40         MKIMG=mkimg
  41 fi
  42
  43 if [ "$1" = "-b" ]; then
  44         MAKEFSARG="$4"
  45 else
  46         MAKEFSARG="$3"
  47 fi
  48
  49 if [ -f ${MAKEFSARG} ]; then
  50         BASEBITSDIR=`dirname ${MAKEFSARG}`
  51         METALOG=${MAKEFSARG}
  52 elif [ -d ${MAKEFSARG} ]; then
  53         BASEBITSDIR=${MAKEFSARG}
  54         METALOG=
  55 else
  56         echo "${MAKEFSARG} must exist"
  57         exit 1
  58 fi
  59
  60 if [ "$1" = "-b" ]; then
  61         # This is highly x86-centric and will be used directly below.
  62         bootable="-o bootimage=i386;$BASEBITSDIR/boot/cdboot -o no-emul-boot"
  63
  64         # Make EFI system partition.
  65         espfilename=$(mktemp /tmp/efiboot.XXXXXX)
  66         # ESP file size in KB.
  67         espsize="2048"
  68         make_esp_file ${espfilename} ${espsize} ${BASEBITSDIR}/boot/loader.efi
  69         bootable="$bootable -o bootimage=i386;${espfilename} -o no-emul-boot -o platformid=efi"
  70
  71         shift
  72 else
  73         bootable=""
  74 fi
  75
  76 if [ $# -lt 3 ]; then
  77         echo "Usage: $0 [-b] image-label image-name base-bits-dir [extra-bits-dir]"
  78         exit 1
  79 fi
  80
  81 LABEL=`echo "$1" | tr '[:lower:]' '[:upper:]'`; shift
  82 NAME="$1"; shift
  83 # MAKEFSARG extracted already
  84 shift
  85
  86 publisher="The FreeBSD Project.  https://www.FreeBSD.org/"
  87 echo "/dev/iso9660/$LABEL / cd9660 ro 0 0" > "$BASEBITSDIR/etc/fstab"
  88 if [ -n "${METALOG}" ]; then
  89         metalogfilename=$(mktemp /tmp/metalog.XXXXXX)
  90         cat ${METALOG} > ${metalogfilename}
  91         echo "./etc/fstab type=file uname=root gname=wheel mode=0644" >> ${metalogfilename}
  92         MAKEFSARG=${metalogfilename}
  93 fi
  94 $MAKEFS -D -N ${BASEBITSDIR}/etc -t cd9660 $bootable -o rockridge -o label="$LABEL" -o publisher="$publisher" "$NAME" "$MAKEFSARG" "$@"
  95 rm -f "$BASEBITSDIR/etc/fstab"
  96 rm -f ${espfilename}
  97 if [ -n "${METALOG}" ]; then
  98         rm ${metalogfilename}
  99 fi
 100
 101 if [ "$bootable" != "" ]; then
 102         # Look for the EFI System Partition image we dropped in the ISO image.
 103         for entry in `$ETDUMP --format shell $NAME`; do
 104                 eval $entry
 105                 if [ "$et_platform" = "efi" ]; then
 106                         espstart=`expr $et_lba \* 2048`
 107                         espsize=`expr $et_sectors \* 512`
 108                         espparam="-p efi::$espsize:$espstart"
 109                         break
 110                 fi
 111         done
 112
 113         # Create a GPT image containing the partitions we need for hybrid boot.
 114         hybridfilename=$(mktemp /tmp/hybrid.img.XXXXXX)
 115         imgsize=`stat -f %z "$NAME"`
 116         $MKIMG -s gpt \
 117             --capacity $imgsize \
 118             -b "$BASEBITSDIR/boot/pmbr" \
 119             -p freebsd-boot:="$BASEBITSDIR/boot/isoboot" \
 120             $espparam \
 121             -o $hybridfilename
 122
 123         # Drop the PMBR, GPT, and boot code into the System Area of the ISO.
 124         dd if=$hybridfilename of="$NAME" bs=32k count=1 conv=notrunc
 125         rm -f $hybridfilename
 126 fi