diff --git a/etc/etc.pmax/Makefile.inc b/etc/etc.pmax/Makefile.inc
index 76cbcd8ab653..ab9a87203015 100644
--- a/etc/etc.pmax/Makefile.inc
+++ b/etc/etc.pmax/Makefile.inc
@@ -1,4 +1,4 @@
-#	$NetBSD: Makefile.inc,v 1.3 1999/02/05 03:01:52 cjs Exp $
+#	$NetBSD: Makefile.inc,v 1.4 1999/04/27 04:36:25 simonb Exp $
 #
 #	etc.pmax/Makefile.inc -- pmax-specific etc Makefile targets
 #
@@ -6,3 +6,48 @@
 # Set this for any kernels beyond GENERIC you want to include
 # in the distribution.
 #EXTRA_KERNELS+=
+
+# Set this for any kernels beyond GENERIC and ${EXTRA_KERNELS} you
+# need to build to make installation tools/media.
+BUILD_KERNELS+=INSTALL RAMDISK
+
+# Add any extra release directories to be made
+INSTALLATION_DIRS+=installation/diskimage installation/netboot
+
+# location of the source diskimage
+DISKIMAGE_DIR!=		cd ${.CURDIR}/../distrib/pmax/instkernel && ${MAKE} -s print-objdir
+DISKIMAGE=		${DISKIMAGE_DIR}/diskimage.gz
+
+# location of the source netboot diskimage tar file
+DISKIMAGE_TAR_DIR!=	cd ${.CURDIR}/../distrib/pmax/ramdisk && ${MAKE} -s print-objdir
+DISKIMAGE_TAR=		${DISKIMAGE_TAR_DIR}/diskimage.tgz
+
+# location of the ramdisk install kernel
+INSTALLKERN_DIR!=	cd ${.CURDIR}/../distrib/pmax/instkernel && ${MAKE} -s print-objdir
+INSTALLKERN=		${INSTALLKERN_DIR}/netbsd.gz
+INSTALLKERNNAME=	install.gz
+
+# location and name of the stripped down NFS install kernel
+NFSCONF=		INSTALL
+NFSKERNNAME=		nfsnetbsd
+# We don't know about ${KERNOBJDIR} yet ...
+NFSKERNDIR=		${.CURDIR:C/[^\/]+$//}sys/arch/${MACHINE}/compile/${NFSCONF}
+NFSKERN=		${NFSKERNDIR}/${NFSKERNNAME}
+
+snap_md_post: ${DISKIMAGE} ${DISKIMAGE_TAR} ${INSTALLKERN}
+	${INSTALL} ${RENAME} ${PRESERVE} ${COPY} -o root -g wheel \
+		-m ${BINMODE} ${NFSKERN}.ecoff \
+		${RELEASEDIR}/binary/kernel/${NFSKERNNAME}
+	gzip -9 ${RELEASEDIR}/binary/kernel/${NFSKERNNAME}
+	${INSTALL} ${RENAME} ${PRESERVE} ${COPY} -o root -g wheel \
+		-m ${BINMODE} ${INSTALLKERN} \
+		${RELEASEDIR}/binary/kernel/${INSTALLKERNNAME}
+	${INSTALL} ${RENAME} ${PRESERVE} ${COPY} -o root -g wheel \
+		-m ${NONBINMODE} ${DISKIMAGE} \
+		${RELEASEDIR}/installation/diskimage
+	${INSTALL} ${RENAME} ${PRESERVE} ${COPY} -o root -g wheel \
+		-m ${NONBINMODE} ${DISKIMAGE_TAR} \
+		${RELEASEDIR}/installation/netboot
+
+${DISKIMAGE} ${DISKIMAGE_TAR} ${INSTALLKERN}:
+	cd ${.CURDIR}/../distrib/pmax && ${MAKE} ${_J}