kernel install script (missed in previous commit)

svn path=/head/; revision=156437

release/scripts/kernels-install.sh

@@ -0,0 +1,43 @@
+#!/bin/sh
+#
+# $FreeBSD$
+#
+
+if [ "`id -u`" != "0" ]; then
+	echo "Sorry, this must be done as root."
+	exit 1
+fi
+if [ $# -lt 1 ]; then
+	echo "You must specify which kernel to extract."
+	exit 1
+fi
+
+CONFIG=$1
+BOOT=${DESTDIR:-/}/boot
+KERNEL=$BOOT/$CONFIG
+
+if [ -d $KERNEL ]; then
+	echo "You are about to extract the $CONFIG kernel distribution into $KERNEL - are you SURE"
+	echo -n "you want to do this over your installed system (y/n)? "
+	read ans 
+else
+	# new installation; do not prompt
+	ans=y
+fi
+if [ "$ans" = "y" ]; then
+	if [ -d $KERNEL ]; then
+		sav=$KERNEL.sav
+		if [ -d $sav ]; then
+			# XXX remove stuff w/o a prompt
+			echo "Removing existing $sav"
+			rm -rf $sav
+		fi
+		echo "Saving existing $KERNEL as $sav"
+		mv $KERNEL $sav
+	fi
+	# translate per Makefile:doTARBALL XXX are we sure to have tr+cut?
+	tn=`echo ${CONFIG} | tr 'A-Z' 'a-z' | cut -c1-8`
+	cat $tn.?? | tar --unlink -xpzf - -C ${DESTDIR:-/}
+else
+	echo "Installation of $CONFIG kernel distribution not done." 
+fi