#!/bin/sh # # mkboot 2.0 - make boot floppy, make root device bootable, etc. # Author: Kees J. Bot trap 'e=$?; rm -f /tmp/mkb.$$; exit $e' 0 2 mdec=/usr/mdec # bootstraps # Check arguments. case "$#:$1" in 1:bootable | 1:hdboot | [12]:fdboot) action=$1 dev=$2 ;; *) echo "Usage: $0 [bootable | hdboot | fdboot [device]]" >&2 exit 1 esac # Get the device table. . /etc/fstab # The real root device may be the RAM disk. realroot=`printroot -r` case $action in bootable | hdboot) # We need the root device. if [ $realroot = $root ] then rootdir= else umount $root 2>/dev/null mount $root /root || exit rootdir=/root fi esac case $action in bootable) # Install the boot monitor on the root device and make it bootable. install -cs -m 644 $mdec/boot $rootdir/boot || exit sync installboot -device $root $mdec/bootblock /boot || exit test $realroot != $root && umount $root ;; hdboot) # Install a new image on the root device. if [ ! -d $rootdir/minix ] then # /minix is not yet a directory! Fix it. su root -c \ "exec mv $rootdir/minix /M" install -d $rootdir/minix su root -c \ "exec mv $rootdir/M $rootdir/minix/`uname -r`.`uname -v`" fi ./tell_config OS_RELEASE . OS_VERSION >/tmp/mkb.$$ version=`sed 's/[" ]//g;/^$/d' </tmp/mkb.$$` revision=`cat revision 2>/dev/null` oldrev=$revision target="${version}r${revision}" if [ -z "$revision" ] then revision=0 elif [ -f $rootdir/minix/$target ] then if [ $rootdir/minix/$target -newer image ] then echo "$root:/minix/$target is up to date" test $realroot != $root && umount $root exit 0 fi revision=`expr $revision + 1` fi target="${version}r${revision}" set -- `ls -t $rootdir/minix` case $# in 0|1) # Not much there, do not remove a thing. ;; *) # Remove the newest image in /minix. This seems strange, but # the old image is normally the "stable" image. echo "rm $root:/minix/$1" rm -f "$rootdir/minix/$1" esac # Install the new image. echo "cp image $root:/minix/$target" cp -p image $rootdir/minix/$target || exit # Save the revision number. test "$revision" != "$oldrev" && echo $revision >revision test $realroot != $root && umount $root echo "Done." ;; fdboot) # fdboot: Make a boot floppy. if [ -z "$dev" ] then echo -n \ "Finish the name of the floppy device to write (by default 'fd0'): /dev/"; read dev case "$dev" in '') dev=/dev/fd0 ;; /dev/*) ;; *) dev=/dev/$dev esac fi # Make a file system. umount $dev 2>/dev/null mkfs -i 512 $dev || exit # Install /dev, /boot and /minix. mount $dev /mnt || exit cpdir /dev /mnt/dev || exit cp -p $mdec/boot /mnt/boot || exit cp -p image /mnt/minix || exit umount $dev || exit # Make bootable and copy the boot parameters. installboot -d $dev $mdec/bootblock boot || exit dd if=$root of=$dev skip=1 seek=1 count=1 conv=silent || exit edparams $dev 'main(){delay 2000;boot}; save' || exit echo "Test kernel installed on $dev with boot parameters from $root" esac exit 0