Index: sys/arch/x68k/stand/libsa/chdsk.c
===================================================================
RCS file: /cvsroot/src/sys/arch/x68k/stand/libsa/chdsk.c,v
retrieving revision 1.2
diff -u -r1.2 chdsk.c
--- sys/arch/x68k/stand/libsa/chdsk.c	12 Jan 2009 07:56:31 -0000	1.2
+++ sys/arch/x68k/stand/libsa/chdsk.c	17 Jul 2010 10:38:24 -0000
@@ -40,6 +40,23 @@
 		struct fd_softc *sc = f->f_devdata;
 		int unit = (0x90 + sc->unit) << 8;
 
+#define USE_TWO_DRIVES
+#if defined(USE_TWO_DRIVES)
+		/* unlock #0 */
+		IOCS_B_DRVCHK(unit, 3);
+
+		/* next drive (toggle #0 and #1) */
+		sc->unit = 1 - sc->unit;
+		unit = (0x90 + sc->unit) << 8;
+
+		/* prompt #1 */
+		IOCS_B_DRVCHK(unit, 4);
+		/* poll for medium #1 */
+		while ((IOCS_B_DRVCHK(unit, 0) & 2) == 0)
+			awaitkey_1sec();
+		/* lock #1 */
+		IOCS_B_DRVCHK(unit, 2);
+#else
 		/* unlock */
 		IOCS_B_DRVCHK(unit, 3);
 		/* eject */
@@ -52,6 +69,7 @@
 			awaitkey_1sec();
 		/* lock */
 		IOCS_B_DRVCHK(unit, 2);
+#endif /* USE_TWO_DRVIES */
 	}
 
 	return 0;