#!/bin/sh
#
# This is a modified script to update quickly a already installed system
# but excludes the /etc directory.
# to update /etc extract first the sources to /usr/src
# and do first a mergemaster -p
# then a mergemaster 

if [ "$( id -u )" != "0" ]; then
	echo "Sorry, this must be done as root."
#	exit 1
fi

DESTDIR=/

# remove schg flags from files and dircetories
SCHGDIRS="bin lib libexec sbin usr/bin usr/lib usr/libexec usr/sbin var/empty"

[ "$( uname -m )" = "amd64" ] && 	SCHGDIRS="$SCHGDIRS usr/lib32"


echo "You are about to extract the base distribution into ${DESTDIR:-/} - are you SURE"
echo ""
echo "*******************************************"
echo " host: $(hostname) "
echo "*******************************************"
echo ""
echo -n "you want to do this over your installed system (y/n)? "
read ans 
if [ "$ans" = "y" ]; then
    echo "remove schg flag from"
    for DIR in ${SCHGDIRS}; do
        find ${DESTDIR:-/}${DIR}/ -flags schg -maxdepth 1 | xargs chflags -v noschg
    done
    echo "extract base ... ( exclude ./etc )"
    cat base.?? | tar --unlink -xpzf - --exclude ./etc -C ${DESTDIR:-/}
fi