| 1 | #!/bin/sh
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| 2 | #
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| 3 | # mkboot 2.0 - make boot floppy, make root device bootable, etc.
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| 4 | # Author: Kees J. Bot
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| 5 |
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| 6 | trap 'e=$?; rm -f /tmp/mkb.$$; exit $e' 0 2
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| 7 |
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| 8 | mdec=/usr/mdec # bootstraps
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| 9 |
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| 10 | # Check arguments.
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| 11 | case "$#:$1" in
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| 12 | 1:bootable | 1:hdboot | [12]:fdboot | [12]:cdfdboot )
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| 13 | action=$1 dev=$2
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| 14 | ;;
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| 15 | *) echo "Usage: $0 [bootable | hdboot | cdfdboot | fdboot [device]] | cdfdboot [device]" >&2
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| 16 | exit 1
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| 17 | esac
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| 18 |
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| 19 | # Get the device table.
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| 20 | . /etc/fstab
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| 21 |
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| 22 | # The real root device may be the RAM disk.
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| 23 | realroot=`printroot -r`
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| 24 |
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| 25 | # If it's an initial fstab, pretend root is real root
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| 26 | if [ $root = "/dev/ROOT" ]
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| 27 | then root=$realroot
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| 28 | fi
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| 29 |
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| 30 | case $action in
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| 31 | bootable | hdboot)
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| 32 | # We need the root device.
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| 33 |
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| 34 | if [ $realroot = $root ]
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| 35 | then
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| 36 | rootdir=
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| 37 | else
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| 38 | umount $root 2>/dev/null
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| 39 | mount $root /mnt || exit
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| 40 | rootdir=/mnt
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| 41 | fi
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| 42 | esac
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| 43 |
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| 44 | case $action in
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| 45 | bootable)
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| 46 | # Install the boot monitor on the root device and make it bootable.
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| 47 | install -cs -m 644 $mdec/boot $rootdir/boot/boot || exit
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| 48 | sync
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| 49 | installboot -device $root $mdec/bootblock /boot/boot || exit
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| 50 | test $realroot != $root && umount $root
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| 51 | ;;
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| 52 | hdboot)
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| 53 | # Install a new image on the root device.
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| 54 | if [ ! -d $rootdir/boot/image ]
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| 55 | then
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| 56 | /boot/image is not yet a directory! Fix it.
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| 57 | su root -c \
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| 58 | "exec mv $rootdir/boot/image /M"
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| 59 | install -d $rootdir/boot/image
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| 60 | su root -c \
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| 61 | "exec mv $rootdir/M $rootdir/boot/image/`uname -r`.`uname -v`"
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| 62 | fi
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| 63 |
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| 64 | sh tell_config OS_RELEASE . OS_VERSION >/tmp/mkb.$$
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| 65 | version=`sed 's/[" ]//g;/^$/d' </tmp/mkb.$$`
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| 66 |
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| 67 | revision=`cat revision 2>/dev/null`
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| 68 |
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| 69 | if [ -z "$revision" ]
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| 70 | then rrevision=""
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| 71 | else rrevision=r$revision
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| 72 | fi
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| 73 |
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| 74 | oldrev=$revision
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| 75 |
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| 76 | target="${version}r${revision}"
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| 77 |
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| 78 | if [ -z "$revision" ]
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| 79 | then
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| 80 | revision=0
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| 81 | rrevision=""
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| 82 | elif [ -f $rootdir/boot/image/$target ]
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| 83 | then
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| 84 | if [ $rootdir/boot/image/$target -newer image ]
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| 85 | then
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| 86 | echo "$root:/boot/image/$target is up to date"
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| 87 | test $realroot != $root && umount $root
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| 88 | exit 0
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| 89 | fi
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| 90 | revision=`expr $revision + 1`
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| 91 | rrevision=r$revision
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| 92 | fi
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| 93 | target="${version}${rrevision}"
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| 94 |
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| 95 | set -- `ls -t $rootdir/boot/image`
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| 96 |
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| 97 | case $# in
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| 98 | 0|1|2|3)
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| 99 | # Not much there, do not remove a thing.
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| 100 | ;;
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| 101 | *)
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| 102 | # Remove the third-newest image in /boot/image, but
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| 103 | # only if there's an older one (which is kept).
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| 104 | echo "rm $root:/boot/image/$3"
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| 105 | rm -f "$rootdir/boot/image/$3"
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| 106 | esac
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| 107 |
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| 108 | # Install the new image.
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| 109 | echo "install image $root:/boot/image/$target"
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| 110 | install -o root -m 600 image $rootdir/boot/image/$target || exit
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| 111 |
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| 112 | # Save the revision number.
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| 113 | test "$revision" != "$oldrev" && echo $revision >revision
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| 114 |
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| 115 | test $realroot != $root && umount $root
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| 116 | echo "Done."
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| 117 | ;;
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| 118 | fdboot)
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| 119 | # fdboot: Make a boot floppy.
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| 120 |
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| 121 | if [ -z "$dev" ]
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| 122 | then
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| 123 | echo -n \
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| 124 | "Finish the name of the floppy device to write (by default 'fd0'): /dev/";
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| 125 | read dev
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| 126 | case "$dev" in
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| 127 | '') dev=/dev/fd0
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| 128 | ;;
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| 129 | /dev/*)
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| 130 | ;;
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| 131 | *) dev=/dev/$dev
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| 132 | esac
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| 133 | fi
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| 134 |
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| 135 | # Make a file system.
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| 136 | umount $dev 2>/dev/null
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| 137 | if mkfs -B 1024 -i 512 $dev
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| 138 | then :
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| 139 | else
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| 140 | echo "mkfs of $dev failed."
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| 141 | exit 1;
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| 142 | fi
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| 143 |
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| 144 | # Install /dev, /boot/boot and /boot/image.
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| 145 | mount $dev /mnt || exit
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| 146 | mkdir -p /mnt/boot/image || exit
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| 147 | cpdir /dev /mnt/dev || exit
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| 148 | cp -p $mdec/boot /mnt/boot/boot || exit
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| 149 | cp -p image /mnt/boot/image/ || exit
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| 150 | umount $dev || exit
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| 151 |
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| 152 | # Make bootable and copy the boot parameters.
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| 153 | installboot -d $dev $mdec/bootblock /boot/boot || exit
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| 154 | pfile=fdbootparams
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| 155 | if [ -f $pfile ]
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| 156 | then echo "Using floppy boot parameters from file $pfile."
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| 157 | edparams $dev "`cat $pfile`" || exit
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| 158 | else echo "Copying floppy boot parameters from $root."
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| 159 | dd if=$root of=$dev skip=1 seek=1 count=1 conv=silent || exit
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| 160 | fi
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| 161 | edparams $dev 'main(){delay 2000;boot}; save' || exit
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| 162 | echo "Test kernel installed on $dev"
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| 163 | ;;
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| 164 |
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| 165 | cdfdboot)
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| 166 | # cdfdboot: Make a boot floppy image to go on a CD for booting from.
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| 167 | if [ -z "$dev" ]
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| 168 | then
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| 169 | ramdisk `expr 1440 \* 1024` 2>/dev/null
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| 170 | dev=/dev/ram
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| 171 | fi
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| 172 | umount $dev 2>/dev/null
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| 173 | if mkfs -B 1024 -b 1440 -i 512 $dev || exit 1
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| 174 | then :
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| 175 | else
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| 176 | echo "mkfs of $dev failed."
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| 177 | exit 1;
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| 178 | fi
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| 179 |
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| 180 | # Install /dev, /boot
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| 181 | mount $dev /mnt || exit 1
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| 182 | mkdir /mnt/dev
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| 183 | mkdir /mnt/boot
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| 184 | mkdir /mnt/boot/image
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| 185 | ( cd /mnt/dev && sh /usr/src/commands/scripts/MAKEDEV.sh std )
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| 186 | cp -p image image_* /mnt/boot/image || exit 1
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| 187 | cp -p ../boot/boot /mnt/boot/boot || exit 1
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| 188 | umount $dev || exit 1
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| 189 | installboot -d $dev ../boot/bootblock boot/boot || exit 1
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| 190 | edparams $dev 'unset bootopts; unset servers; disable=inet; image=/boot/image/image; bootbig(1, Regular MINIX 3 (requires at least 16 MB RAM)) { image=/boot/image/image ; boot } bootsmall(2, Small MINIX 3 (intended for 8 MB systems)) { image=/boot/image/image_small ; boot } cdproberoot=1; unset rootdev; unset leader; leader() { echo \n--- Welcome to MINIX 3. This is the boot monitor. ---\n\nChoose an option from the menu or press ESC if you need to do anything special.\nOtherwise I will boot with my defaults in 10 seconds.\n\n }; bootcd=1; main(){trap 10000 boot; menu; }; save' || exit
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| 191 |
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| 192 | # copy image
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| 193 | dd if=$dev of=cdfdimage bs=8192 count=180
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| 194 | esac
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| 195 | sync
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| 196 | exit 0
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