diff --git a/distrib/shark/instkernel/instkernel/Makefile b/distrib/shark/instkernel/instkernel/Makefile
index fefa63ce72e6..60b3f4310c55 100644
--- a/distrib/shark/instkernel/instkernel/Makefile
+++ b/distrib/shark/instkernel/instkernel/Makefile
@@ -1,4 +1,4 @@
-#	$NetBSD: Makefile,v 1.14 2003/09/21 00:19:31 matt Exp $
+#	$NetBSD: Makefile,v 1.15 2007/03/10 17:57:41 jmmv Exp $
 
 .include <bsd.own.mk>
 .include "${NETBSDSRCDIR}/distrib/common/Makefile.distrib"
@@ -9,10 +9,16 @@ RAMDISK=	${RAMDISKDIR}/ramdisk.fs
 MDSETTARGETS=		INSTALL ${RAMDISK} -
 MDSET_RELEASEDIR=	binary/kernel
 
-MDSET_POST.-= \
+MDSET_POST= \
 	${OBJCOPY} -O a.out-arm-netbsd -R .ident -R .arm.atpcs -R .comment \
-	    ${.TARGET} ${.TARGET}
+	    ${.TARGET} ${.TARGET}.aout; \
+	gzip -9c ${.TARGET}.aout >${.TARGET}.aout.gz
 
 .include "${DISTRIBDIR}/common/Makefile.mdset"
 
+.PHONY: release-aout-instkernel
+release-aout-instkernel:
+	${RELEASE_INSTALL} netbsd-INSTALL.aout.gz \
+	    ${RELEASEDIR}/${MACHINE}/installation/instkernel/netbsd.gz
+
 .include <bsd.prog.mk>
diff --git a/etc/etc.shark/Makefile.inc b/etc/etc.shark/Makefile.inc
index eab0ed4d9aff..1ee6e866759d 100644
--- a/etc/etc.shark/Makefile.inc
+++ b/etc/etc.shark/Makefile.inc
@@ -1,4 +1,4 @@
-#	$NetBSD: Makefile.inc,v 1.7 2003/01/03 15:34:39 lukem Exp $
+#	$NetBSD: Makefile.inc,v 1.8 2007/03/10 17:57:41 jmmv Exp $
 #
 #	etc.shark/Makefile.inc -- shark-specific etc Makefile targets
 #
@@ -11,4 +11,6 @@ BUILD_KERNELS=		INSTALL
 INSTALLATION_DIRS+=	installation/instkernel
 
 snap_md_post:
+	cd ${NETBSDSRCDIR}/distrib/shark/instkernel/instkernel && \
+	    ${MAKE} release-aout-instkernel
 	${MAKESUMS} -t ${RELEASEDIR}/${MACHINE}/installation/instkernel '*.gz'