Rotate kernels/images/modules.

Kernels and system services are stored in a single directory in the
/boot/minix/ and rotated like /boot/images. /boot/minix_latest slink
is created automatically.
System serives are prefixed by "modNN_" to allow to easily load them
using "mod*" pattern.

tools/mkboot

@@ -3,19 +3,48 @@
 #	mkboot 2.0 - make boot floppy, make root device bootable, etc.
 #							Author: Kees J. Bot
 
+usage() {
+	echo "Usage: $0 [bootable | hdboot [minix or image] | fdboot [device]]" >&2
+	exit 1
+}
+
+rotate_oldest() {
+	base_dir="$1"
+	set -- `ls -t "$base_dir"`
+
+	case $# in
+	0|1|2|3)
+		# Not much there, do not remove a thing.
+		;;
+	*)
+		# Remove the third-newest $hdboot_t in /boot/$hdboot_t, but
+		# only if there's an older one (which is kept). 
+		echo "rm $root:$base_dir/$3"
+		rm -rf "$base_dir/$3"
+	esac
+}
+
+
 trap 'e=$?; rm -f /tmp/mkb.$$; exit $e' 0 2
 
 mdec=/usr/mdec	# bootstraps
 
 # Check arguments.
 case "$#:$1" in
-1:bootable | 1:hdboot | [12]:fdboot )
+1:bootable | 2:hdboot | [12]:fdboot )
 	action=$1 dev=$2 size=$3
 	;;
-*)	echo "Usage: $0 [bootable | hdboot | fdboot [device]]" >&2
-	exit 1
+*)	usage
 esac
 
+if [ "$1" = "hdboot" ]
+then
+	if [ "$2" != "image" -a "$2" != "minix" ]
+	then usage
+	fi
+	hdboot_t="$2"
+fi
+
 # Get the device table.
 FSTAB=/etc/fstab
 touch $FSTAB
@@ -56,14 +85,14 @@ bootable)
 	;;
 hdboot)
 	# Install a new image on the root device.
-	if [ ! -d $rootdir/boot/image ]
+	if [ -e $rootdir/boot/$hdboot_t -a ! -d $rootdir/boot/$hdboot_t ]
 	then
-		# /boot/image is not yet a directory!  Fix it.
+		# /boot/$hdboot_t is not yet a directory!  Fix it.
 		su root -c \
-		    "exec mv $rootdir/boot/image /M"
-		install -d $rootdir/boot/image
+		    "exec mv $rootdir/boot/$hdboot_t /M"
+		install -d $rootdir/boot/$hdboot_t
 		su root -c \
-		    "exec mv $rootdir/M $rootdir/boot/image/`uname -r`"
+		    "exec mv $rootdir/M $rootdir/boot/$hdboot_t/`uname -r`"
 	fi
 
 	sh tell_config OS_RELEASE . OS_VERSION >/tmp/mkb.$$
@@ -97,30 +126,24 @@ hdboot)
 
 	target="${version}${rrevision}${gitrev}"
 
-	set -- `ls -t $rootdir/boot/image`
+	rotate_oldest "$rootdir/boot/$hdboot_t"
 
-	case $# in
-	0|1|2|3)
-		# Not much there, do not remove a thing.
-		;;
-	*)
-		# Remove the third-newest image in /boot/image, but
-		# only if there's an older one (which is kept). 
-		echo "rm $root:/boot/image/$3"
-		rm -f "$rootdir/boot/image/$3"
-	esac
+	# rotate system processes. We assume latest ones are in
+	# /boot/modules/.temp and we maintain /boot/modules/ by ourselves.
+	if [ "$hdboot_t" = "minix" ]
+	then
+		[ -d /boot/minix/.temp ] || exit 1
+		mv /boot/minix/.temp /boot/minix/"$target"
+		rm -f /boot/minix_latest
+		ln -s /boot/minix/"$target" /boot/minix_latest 
+	else
+		# Install the new image.
+		echo "install $hdboot_t $root:/boot/$hdboot_t/$target"
+		install -o root -m 600 $hdboot_t $rootdir/boot/$hdboot_t/$target || exit 1
 
-	# Install the new image.
-	echo "install image $root:/boot/image/$target"
-	install -o root -m 600 image $rootdir/boot/image/$target || exit
-
-	# Tell GRUB which image is newest
-	image_latest="`ls -t $rootdir/boot/image | head -n 1`"
-	if [ -f "$rootdir/boot/image/$image_latest" ]
-	then image_latest="/boot/image/$image_latest"
-	else image_latest=/boot/image_big
+		# Tell bootloader which image is newest
+		ln -f $rootdir/boot/$hdboot_t/$target $rootdir/boot/${hdboot_t}_latest
 	fi
-	ln -f $image_latest $rootdir/boot/image_latest
 
 	# Save the revision number.
 	test "$revision" != "$oldrev" && echo $revision >revision