disktab entry for miniroot

src/etc/etc.loongson/disktab

@@ -1,4 +1,4 @@
-# $OpenBSD: disktab,v 1.1 2010/01/23 19:26:45 matthieu Exp $
+# $OpenBSD: disktab,v 1.2 2010/02/16 18:02:15 otto Exp $
 #
 #	@(#)disktab	5.5 (Berkeley) 2/27/91
 #
@@ -24,3 +24,6 @@ rdroot|ramdiskroot|RAM-disk root FS image:\
 	:ta=4.2BSD:oa#0:pa#8192:fa#512:ba#4096:\
 	:ob#0:pb#0:oc#0:pc#8192:
 
+miniroot|Installation root FS image:\
+	:ty=simulated:se#512:nc#9:nt#16:ns#128:\
+	:oc#0:pc#18432: