diff --git a/releasetools/Makefile b/releasetools/Makefile
index 6ee676168..dd6a44645 100644
--- a/releasetools/Makefile
+++ b/releasetools/Makefile
@@ -1,9 +1,5 @@
 # Makefile for the kernel image.
 .include <bsd.own.mk>
-.include "nbsd.config"
-
-.include <bsd.own.mk>
-.include <bsd.sys.mk>
 
 u=/usr
 MDEC=	/usr/mdec
@@ -42,8 +38,6 @@ usage:
 	@echo "	make install    # Make image, and install to hard disk" >&2
 	@echo "	make hdboot     # Make image, and install to hard disk" >&2
 	@echo "	make bootable   # Make hard disk bootable" >&2
-	@echo "	make nbsd_fetch	# Download current NetBSD reference sources" >&2
-	@echo "	make nbsd_diff	# Update minix-port.patch in NetBSD sources" >&2
 	@echo "	make clean      # Remove all compiler results, except libs" >&2
 	@echo " " >&2
 	@echo "To create a fresh MINIX configuration, try:" >&2
@@ -106,30 +100,6 @@ do-hdboot:
 	${HOST_SH} ../minix/commands/update_bootcfg/update_bootcfg.sh;\
 	fi
 
-# download and update NetBSD reference sources.
-nbsd_fetch:
-	export CVS_RSH=ssh; 							\
-	export OLDPWD=`pwd`;							\
-	echo "retrieving hierarchies from ${NBSD_CVSROOT}";			\
-	IFS=,;									\
-	cd ..;									\
-	cat releasetools/nbsd_ports | grep -v '^#' | while read port ;		\
-	do	set $$port;							\
-		date=$$1; minixpath=$$2; origpath=$$3;				\
-		if [ $$# -lt 3 ]; then origpath=$$2; fi;			\
-		echo "retrieving $$origpath ..";				\
-		cvs -q -d ${NBSD_CVSROOT} co -N -D "$$date UTC" -d nbsdsrc "src/$$origpath" ; \
-	done;									\
-	cd $${OLDPWD};
-
-nbsd_diff:
-	find .. -name minix-port.patch | xargs rm
-	cat nbsd_ports | grep -v '^#' | \
-	( cd .. && awk -F, '{ minixpath=$$2; origpath=$$3; if(NF < 3) { origpath=$$2; } system("sh releasetools/nbsd_diff.sh " \
-	   "nbsdsrc/src/"origpath" "minixpath" "minixpath"/minix-port.patch");}' )
-	find .. -name minix-port.patch | xargs wc -l | sort -n
-
-
 # clean up compile results
 clean:
 	${MAKE} -C ../lib $@
diff --git a/releasetools/nbsd.config b/releasetools/nbsd.config
deleted file mode 100644
index af71c7b3d..000000000
--- a/releasetools/nbsd.config
+++ /dev/null
@@ -1,3 +0,0 @@
-NBSD_CVSROOT= anoncvs@anoncvs.netbsd.org:/cvsroot
-
-NBSD_REF= "-D 2011-01-22 UTC0"	# The date (or tag) of ported NetBSD sources.
diff --git a/releasetools/nbsd_diff.sh b/releasetools/nbsd_diff.sh
deleted file mode 100644
index d0edb06ac..000000000
--- a/releasetools/nbsd_diff.sh
+++ /dev/null
@@ -1,15 +0,0 @@
-#!/bin/sh
-diff=$3
-rm -f "$diff"
-if [ ! -d "$1" -o ! -d "$2" ]
-then	echo Skipping $diff
-	exit 0
-fi
-diff -aru $1 $2 | \
-	sed /"^Only in"/d | \
-	sed -e 's/^\(---.*\)\t.*/\1/' | \
-	sed -e 's/^\(\+\+\+.*\)\t.*/\1/' > $diff
-
-if [ ! -s "$diff" ]
-then	rm -f "$diff"
-fi
diff --git a/releasetools/nbsd_ports b/releasetools/nbsd_ports
deleted file mode 100644
index 872158e0c..000000000
--- a/releasetools/nbsd_ports
+++ /dev/null
@@ -1,301 +0,0 @@
-#
-# Please keep this file order by minixpath, to simplify 
-# updates of entries.
-#
-# Format:
-# Timestamp in UTC,minixpath,netbsdpath
-# minixpath:  path in Minix source tree (starting from /usr/src/)
-# netbsdpath: path in BSD source tree (starting from src/)
-2013/12/1 12:00:00,bin/cat
-2013/12/1 12:00:00,bin/date
-2013/12/1 12:00:00,bin/df
-2013/12/1 12:00:00,bin/echo
-2013/12/1 12:00:00,bin/ed
-2013/12/1 12:00:00,bin/expr
-2013/12/1 12:00:00,bin/kill
-2013/12/1 12:00:00,bin/ksh
-2013/12/1 12:00:00,bin/ln
-2013/12/1 12:00:00,bin/ls
-2013/12/1 12:00:00,bin/Makefile
-2013/12/1 12:00:00,bin/Makefile.inc
-2013/12/1 12:00:00,bin/mkdir
-2013/12/1 12:00:00,bin/pax
-2013/12/1 12:00:00,bin/pwd
-2013/12/1 12:00:00,bin/rm
-2013/12/1 12:00:00,bin/rmdir
-2013/12/1 12:00:00,bin/stty
-2013/12/1 12:00:00,bin/sync
-2013/12/1 12:00:00,bin/test
-2013/12/1 12:00:00,build.sh
-2013/12/1 12:00:00,common/dist/zlib
-2013/12/1 12:00:00,common/include/prop
-2013/12/1 12:00:00,common/lib/libc
-2013/12/1 12:00:00,common/lib/libprop
-2013/12/1 12:00:00,common/lib/libutil
-2013/12/1 12:00:00,common/lib/libutil
-2013/12/1 12:00:00,dist/nvi
-2013/12/1 12:00:00,distrib/common
-2013/12/1 12:00:00,distrib/Makefile
-2013/12/1 12:00:00,distrib/Makefile.inc
-2013/12/1 12:00:00,distrib/sets
-2013/12/1 12:00:00,etc/defaults/Makefile
-2013/12/1 12:00:00,etc/Makefile
-2013/12/1 12:00:00,etc/mtree
-2013/12/1 12:00:00,etc/rc.subr
-2013/12/1 12:00:00,external/bsd/atf
-2013/12/1 12:00:00,external/bsd/byacc
-2013/12/1 12:00:00,external/bsd/bzip2
-2013/12/1 12:00:00,external/bsd/file
-2013/12/1 12:00:00,external/bsd/flex
-2013/12/1 12:00:00,external/bsd/kyua-atf-compat
-2013/12/1 12:00:00,external/bsd/kyua-cli
-2013/12/1 12:00:00,external/bsd/kyua-testers
-2013/12/1 12:00:00,external/bsd/less
-2013/12/1 12:00:00,external/bsd/libarchive
-2013/12/1 12:00:00,external/bsd/lutok
-2013/12/1 12:00:00,external/bsd/Makefile
-2013/12/1 12:00:00,external/bsd/mdocml
-2013/12/1 12:00:00,external/gpl3/binutils
-2013/12/1 12:00:00,external/gpl3/gcc
-2013/12/1 12:00:00,external/gpl3/Makefile
-2013/12/1 12:00:00,external/gpl3/README
-2013/12/1 12:00:00,external/historical/nawk
-2013/12/1 12:00:00,external/lgpl2/mpc
-2013/12/1 12:00:00,external/lgpl3/gmp
-2013/12/1 12:00:00,external/lgpl3/mpfr
-2013/12/1 12:00:00,external/Makefile
-2013/12/1 12:00:00,external/mit/lua
-2013/12/1 12:00:00,external/mit/Makefile
-2013/12/1 12:00:00,external/public-domain
-2013/12/1 12:00:00,external/README
-2013/12/1 12:00:00,games/adventure
-2013/12/1 12:00:00,games/arithmetic
-2013/12/1 12:00:00,games/bcd
-2013/12/1 12:00:00,games/colorbars
-2013/12/1 12:00:00,games/factor
-2013/12/1 12:00:00,games/fortune
-2013/12/1 12:00:00,games/Makefile
-2013/12/1 12:00:00,games/Makefile.inc
-2013/12/1 12:00:00,games/monop
-2013/12/1 12:00:00,games/morse
-2013/12/1 12:00:00,games/number
-2013/12/1 12:00:00,games/pig
-2013/12/1 12:00:00,games/ppt
-2013/12/1 12:00:00,games/primes
-2013/12/1 12:00:00,games/random
-2013/12/1 12:00:00,games/tetris
-2013/12/1 12:00:00,games/wargames
-2013/12/1 12:00:00,gnu/dist/texinfo
-2013/12/1 12:00:00,gnu/usr.bin/texinfo
-2013/12/1 12:00:00,gnu/Makefile
-2013/12/1 12:00:00,gnu/README
-2013/12/1 12:00:00,include
-2013/12/1 12:00:00,libexec/fingerd
-2013/12/1 12:00:00,libexec/ftpd
-2013/12/1 12:00:00,libexec/getty
-2013/12/1 12:00:00,libexec/ld.elf_so
-2013/12/1 12:00:00,libexec/Makefile
-2013/12/1 12:00:00,libexec/Makefile.inc
-2013/12/1 12:00:00,libexec/makewhatis
-2013/12/1 12:00:00,lib/csu
-2013/12/1 12:00:00,lib/libbz2
-2013/12/1 12:00:00,lib/libc
-2013/12/1 12:00:00,lib/libcrypt
-2013/12/1 12:00:00,lib/libcurses
-2013/12/1 12:00:00,lib/libedit
-2013/12/1 12:00:00,lib/libform
-2013/12/1 12:00:00,lib/libm
-2013/12/1 12:00:00,lib/libmenu
-2013/12/1 12:00:00,lib/libprop
-2013/12/1 12:00:00,lib/libpuffs
-2013/12/1 12:00:00,lib/librmt
-2013/12/1 12:00:00,lib/libterminfo
-2013/12/1 12:00:00,lib/libz
-2013/12/1 12:00:00,lib/libutil
-2013/12/1 12:00:00,lib/lua
-2013/12/1 12:00:00,lib/Makefile
-2013/12/1 12:00:00,Makefile
-2013/12/1 12:00:00,sbin/fsck
-2013/12/1 12:00:00,sbin/fsck_ext2fs
-2013/12/1 12:00:00,sbin/init
-2013/12/1 12:00:00,sbin/reboot
-2013/12/1 12:00:00,sbin/shutdown
-2013/12/1 12:00:00,sbin/Makefile
-2013/12/1 12:00:00,sbin/Makefile.inc
-2013/12/1 12:00:00,sbin/mknod
-2013/12/1 12:00:00,sbin/newfs_ext2fs
-2013/12/1 12:00:00,sbin/nologin
-2013/12/1 12:00:00,share/Makefile
-2013/12/1 12:00:00,share/Makefile.inc
-2013/12/1 12:00:00,share/misc
-2013/12/1 12:00:00,share/mk
-2013/12/1 12:00:00,share/terminfo
-2013/12/1 12:00:00,share/zoneinfo
-2013/12/1 12:00:00,sys/arch/i386/stand
-2013/12/1 12:00:00,sys/arch/x86/include
-2013/12/1 12:00:00,sys/dev/Makefile
-2013/12/1 12:00:00,sys/dev/i2c/Makefile
-2013/12/1 12:00:00,sys/dev/i2c/i2c_io.h
-2013/12/1 12:00:00,sys/dev/videomode
-2013/12/1 12:00:00,sys/dev/vndvar.h
-2013/12/1 12:00:00,sys/lib/libsa
-2013/12/1 12:00:00,sys/lib/libz
-2013/12/1 12:00:00,sys/Makefile
-2013/12/1 12:00:00,sys/ufs
-2013/12/1 12:00:00,tests
-2013/12/1 12:00:00,tools/binutils
-2013/12/1 12:00:00,tools/cksum
-2013/12/1 12:00:00,tools/compat
-2013/12/1 12:00:00,tools/file
-2013/12/1 12:00:00,tools/gcc
-2013/12/1 12:00:00,tools/gmake
-2013/12/1 12:00:00,tools/gmp
-2013/12/1 12:00:00,tools/headerlist
-2013/12/1 12:00:00,tools/host-mkdep
-2013/12/1 12:00:00,tools/join
-2013/12/1 12:00:00,tools/lex
-2013/12/1 12:00:00,tools/lorder
-2013/12/1 12:00:00,tools/Makefile
-2013/12/1 12:00:00,tools/Makefile.gnuhost
-2013/12/1 12:00:00,tools/Makefile.host
-2013/12/1 12:00:00,tools/Makefile.nbincludes
-2013/12/1 12:00:00,tools/mandoc
-2013/12/1 12:00:00,tools/mkheaderlist.sh
-2013/12/1 12:00:00,tools/mpc
-2013/12/1 12:00:00,tools/mpfr
-2013/12/1 12:00:00,tools/mtree
-2013/12/1 12:00:00,tools/nbperf
-2013/12/1 12:00:00,tools/sed
-2013/12/1 12:00:00,tools/texinfo
-2013/12/1 12:00:00,tools/tic
-2013/12/1 12:00:00,tools/tsort
-2013/12/1 12:00:00,usr.bin/apropos
-2013/12/1 12:00:00,usr.bin/asa
-2013/12/1 12:00:00,usr.bin/banner
-2013/12/1 12:00:00,usr.bin/basename
-2013/12/1 12:00:00,usr.bin/bdes
-2013/12/1 12:00:00,usr.bin/bzip2
-2013/12/1 12:00:00,usr.bin/bzip2recover
-2013/12/1 12:00:00,usr.bin/cal
-2013/12/1 12:00:00,usr.bin/calendar
-2013/12/1 12:00:00,usr.bin/checknr
-2013/12/1 12:00:00,usr.bin/chpass
-2013/12/1 12:00:00,usr.bin/cksum
-2013/12/1 12:00:00,usr.bin/col
-2013/12/1 12:00:00,usr.bin/colcrt
-2013/12/1 12:00:00,usr.bin/colrm
-2013/12/1 12:00:00,usr.bin/column
-2013/12/1 12:00:00,usr.bin/comm
-2013/12/1 12:00:00,usr.bin/csplit
-2013/12/1 12:00:00,usr.bin/ctags
-2013/12/1 12:00:00,usr.bin/cut
-2013/12/1 12:00:00,usr.bin/deroff
-2013/12/1 12:00:00,usr.bin/dirname
-2013/12/1 12:00:00,usr.bin/du
-2013/12/1 12:00:00,usr.bin/expand
-2013/12/1 12:00:00,usr.bin/env
-2013/12/1 12:00:00,usr.bin/false
-2013/12/1 12:00:00,usr.bin/finger
-2013/12/1 12:00:00,usr.bin/fold
-2013/12/1 12:00:00,usr.bin/fpr
-2013/12/1 12:00:00,usr.bin/from
-2013/12/1 12:00:00,usr.bin/fsplit
-2013/12/1 12:00:00,usr.bin/ftp
-2013/12/1 12:00:00,usr.bin/head
-2013/12/1 12:00:00,usr.bin/hexdump
-2013/12/1 12:00:00,usr.bin/genassym
-2013/12/1 12:00:00,usr.bin/getopt
-2013/12/1 12:00:00,usr.bin/gzip
-2013/12/1 12:00:00,usr.bin/id
-2013/12/1 12:00:00,usr.bin/indent
-2013/12/1 12:00:00,usr.bin/infocmp
-2013/12/1 12:00:00,usr.bin/join
-2013/12/1 12:00:00,usr.bin/jot
-2013/12/1 12:00:00,usr.bin/lam
-2013/12/1 12:00:00,usr.bin/last
-2013/12/1 12:00:00,usr.bin/ldd
-2013/12/1 12:00:00,usr.bin/leave
-2013/12/1 12:00:00,usr.bin/lock
-2013/12/1 12:00:00,usr.bin/login
-2013/12/1 12:00:00,usr.bin/logname
-2013/12/1 12:00:00,usr.bin/lorder
-2013/12/1 12:00:00,usr.bin/m4
-2013/12/1 12:00:00,usr.bin/machine
-2013/12/1 12:00:00,usr.bin/make
-2013/12/1 12:00:00,usr.bin/Makefile
-2013/12/1 12:00:00,usr.bin/Makefile.inc
-2013/12/1 12:00:00,usr.bin/man
-2013/12/1 12:00:00,usr.bin/menuc
-2013/12/1 12:00:00,usr.bin/mesg
-2013/12/1 12:00:00,usr.bin/mkdep
-2013/12/1 12:00:00,usr.bin/mkfifo
-2013/12/1 12:00:00,usr.bin/mkstr
-2013/12/1 12:00:00,usr.bin/mktemp
-2013/12/1 12:00:00,usr.bin/msgc
-2013/12/1 12:00:00,usr.bin/nbperf
-2013/12/1 12:00:00,usr.bin/nice
-2013/12/1 12:00:00,usr.bin/nl
-2013/12/1 12:00:00,usr.bin/nohup
-2013/12/1 12:00:00,usr.bin/nvi
-2013/12/1 12:00:00,usr.bin/newgrp
-2013/12/1 12:00:00,usr.bin/passwd
-2013/12/1 12:00:00,usr.bin/paste
-2013/12/1 12:00:00,usr.bin/pathchk
-2013/12/1 12:00:00,usr.bin/pr
-2013/12/1 12:00:00,usr.bin/printenv
-2013/12/1 12:00:00,usr.bin/printf
-2013/12/1 12:00:00,usr.bin/pwhash
-2013/12/1 12:00:00,usr.bin/renice
-2013/12/1 12:00:00,usr.bin/rev
-2013/12/1 12:00:00,usr.bin/sdiff
-2013/12/1 12:00:00,usr.bin/sed
-2013/12/1 12:00:00,usr.bin/seq
-2013/12/1 12:00:00,usr.bin/shlock
-2013/12/1 12:00:00,usr.bin/shuffle
-2013/12/1 12:00:00,usr.bin/soelim
-2013/12/1 12:00:00,usr.bin/sort
-2013/12/1 12:00:00,usr.bin/split
-2013/12/1 12:00:00,usr.bin/stat
-2013/12/1 12:00:00,usr.bin/su
-2013/12/1 12:00:00,usr.bin/tee
-2013/12/1 12:00:00,usr.bin/tic
-2013/12/1 12:00:00,usr.bin/tput
-2013/12/1 12:00:00,usr.bin/tr
-2013/12/1 12:00:00,usr.bin/true
-2013/12/1 12:00:00,usr.bin/tsort
-2013/12/1 12:00:00,usr.bin/tty
-2013/12/1 12:00:00,usr.bin/ul
-2013/12/1 12:00:00,usr.bin/uname
-2013/12/1 12:00:00,usr.bin/unifdef
-2013/12/1 12:00:00,usr.bin/uniq
-2013/12/1 12:00:00,usr.bin/units
-2013/12/1 12:00:00,usr.bin/unvis
-2013/12/1 12:00:00,usr.bin/unzip
-2013/12/1 12:00:00,usr.bin/users
-2013/12/1 12:00:00,usr.bin/uuidgen
-2013/12/1 12:00:00,usr.bin/vis
-2013/12/1 12:00:00,usr.bin/wall
-2013/12/1 12:00:00,usr.bin/wc
-2013/12/1 12:00:00,usr.bin/what
-2013/12/1 12:00:00,usr.bin/who
-2013/12/1 12:00:00,usr.bin/whois
-2013/12/1 12:00:00,usr.bin/whatis
-2013/12/1 12:00:00,usr.bin/write
-2013/12/1 12:00:00,usr.bin/xinstall
-2013/12/1 12:00:00,usr.bin/xstr
-2013/12/1 12:00:00,usr.bin/yes
-2013/12/1 12:00:00,usr.sbin/chroot
-2013/12/1 12:00:00,usr.sbin/i2cscan
-2013/12/1 12:00:00,usr.sbin/installboot
-2013/12/1 12:00:00,usr.sbin/link
-2013/12/1 12:00:00,usr.sbin/Makefile
-2013/12/1 12:00:00,usr.sbin/Makefile.inc
-2013/12/1 12:00:00,usr.sbin/mtree
-2013/12/1 12:00:00,usr.sbin/postinstall
-2013/12/1 12:00:00,usr.sbin/pwd_mkdb
-2013/12/1 12:00:00,usr.sbin/rdate
-2013/12/1 12:00:00,usr.sbin/unlink
-2013/12/1 12:00:00,usr.sbin/user
-2013/12/1 12:00:00,usr.sbin/vipw
-2013/12/1 12:00:00,usr.sbin/vnconfig
-2013/12/1 12:00:00,usr.sbin/zic
diff --git a/releasetools/tell_config b/releasetools/tell_config
deleted file mode 100755
index dcde01ffe..000000000
--- a/releasetools/tell_config
+++ /dev/null
@@ -1,7 +0,0 @@
-#!/bin/sh
-#
-#	tellconfig - Tell the value of a <minix/config.h> parameter
-#						Author: Kees J. Bot
-
-NETBSDSRCDIR=`dirname $0`/..
-exec sh $NETBSDSRCDIR/sys/conf/osrelease.sh