slight tuning of /etc/mk situation when making release.

- Make the bootstrap /etc/mk be populated from the newly checked out source
  - Don't chmod 755 all of /etc
  - For the 'real' /etc/mk installing, let the /etc/mk ownership and permission
    come from the mtree file, delete the contents of /etc/mk, then copy the .mk
    files over and set reasonable permissions and ownership. (So that the .mk
    get updated from the real usr/src/ copies, and no other junk if anything,
    after the bootstrap phase, whatever happened there.)

etc/Makefile

@@ -18,10 +18,14 @@ install::
 	mkdir -p $(ETC)
 	@for f in $(FILES1); do if [ -f $(ETC)/$$f ]; then :; else cp $$f $(ETC)/$$f; chmod 755 $(ETC)/$$f; fi; done
 	@for f in $(FILES2); do if [ -f $(ETC)/$$f ]; then :; else cp $$f $(ETC)/$$f; chmod 600 $(ETC)/$$f; fi; done
-	@for d in $(DIR1); do if [ -d $(ETC)/$$d ]; then :; else cp -r $$d $(ETC)/; chmod -r 755 $(ETC)/$$d; fi; done
 	@echo "Making hierarchy.."
 	sh mtree.sh mtree/minix.tree
 	@for f in $(FILES3); do if [ -f $(USRETC)/$$f ]; then :; else cp usr/$$f $(USRETC); chmod 755 $(USRETC)/$$f; fi; done
+	@echo "Installing /etc/mk.."
+	rm $(ETC)/$(DIR1)/*
+	cp $(DIR1)/*.mk $(ETC)/$(DIR1)
+	chmod 644 $(ETC)/$(DIR1)/*
+	chown bin $(ETC)/$(DIR1)/*
 	@echo "Making devices.."
 	p=`pwd` && cd /dev && sh $$p/../commands/scripts/MAKEDEV.sh null 
 	p=`pwd` && cd /dev && sh $$p/../commands/scripts/MAKEDEV.sh std  2>/dev/null

etc/mtree/minix.tree

@@ -4,6 +4,7 @@
 755 root    operator /dev
 /dev/mouse -> /dev/kbdaux
 755 root    operator /etc
+755 root    bin      /etc/mk
 755 root    operator /lib
 755 root    operator /lib/i386
 755 root    operator /boot

tools/release.sh

@@ -318,11 +318,16 @@ rm -rf $RELEASEDIR/usr/$SRC/doc/bugs
 if [ "$USB" -eq 0 ]
 then	date >$RELEASEDIR/CD
 fi
+echo " * Bootstrap /etc/mk files"
+# Need /etc/mk in the new system to invoke make. Real ownerships
+# and permissions will be set by its own src/etc/Makefile.
+# They have to be owned by bin so that the new make can do its work.
+mkdir -p $RELEASEDIR/etc/mk
+chmod 755 $RELEASEDIR/etc/mk
+cp $RELEASEDIR/usr/src/etc/mk/* $RELEASEDIR/etc/mk/
+chown -R bin $RELEASEDIR/etc/mk
 echo " * Chroot build"
 cp chrootmake.sh $RELEASEDIR/usr/$SRC/tools/chrootmake.sh
-mkdir -p $RELEASEDIR/etc/mk
-chmod -R 755 $RELEASEDIR/etc/
-cp ../etc/mk/* $RELEASEDIR/etc/mk/
 chroot $RELEASEDIR "PATH=/$XBIN sh -x /usr/$SRC/tools/chrootmake.sh" || exit 1
 # Copy built images for cd booting
 cp $RELEASEDIR/boot/image_big image