diff --git a/apps/shutdown/shutdown.c b/apps/shutdown/shutdown.c
index 948a398..92cda80 100644
--- a/apps/shutdown/shutdown.c
+++ b/apps/shutdown/shutdown.c
@@ -558,7 +558,8 @@ int main(int argc, char *argv[])
 	char apname[16];
 	char s[256];
 	int i;
-	int dev, xdv, txt, isfalcon, ct60;
+	int dev, xdv, txt, isfalcon;
+	int have_poweroff;
 	int doex, isgr, isover;
 	int msgtyp;
 	int iteration;
@@ -609,7 +610,8 @@ int main(int argc, char *argv[])
 		break;
 	}
 
-	ct60 = xbios(39, 'AnKr', 4, 0x43543630L) != 0;
+	have_poweroff  = xbios(39, 'AnKr', 4, 0x43543630L) != 0; /* ct60  */
+	have_poweroff |= xbios(39, 'AnKr', 4, 0x5241564EL) != 0; /* raven */
 	
 	/* -w oder -c */
 
@@ -620,7 +622,7 @@ int main(int argc, char *argv[])
 			bootmode = coldboot;
 		else if (c == 'W')
 			bootmode = warmboot;
-		else if (c == 'P' && ct60)
+		else if (c == 'P' && have_poweroff)
 			bootmode = poweroff;
 		argv++;
 		argc--;
@@ -865,7 +867,7 @@ int main(int argc, char *argv[])
 			 */
 			if (bootmode == ask)
 			{
-				sprintf(s, s_successful, ct60 ? s_poweroff : "");
+				sprintf(s, s_successful, have_poweroff ? s_poweroff : "");
 				dev = form_alert(1, s);
 /*				shel_write(SHW_SHUTDOWN, FALSE, 0, NULL, NULL);	*/
 				if (dev == 1)
diff --git a/kernel/bios/atari/magibios.s b/kernel/bios/atari/magibios.s
index 4fea461..aaee2ce 100644
--- a/kernel/bios/atari/magibios.s
+++ b/kernel/bios/atari/magibios.s
@@ -886,7 +886,7 @@ bot_l3:
 
 * Cartridge testen
 
-;    IFEQ HADES | RAVEN
+;    IFEQ HADES
  moveq    #2,d0
  bsr      cartscan
 ;    ENDIF
@@ -948,7 +948,7 @@ bot_l4:
 
 * Cartridge testen
 
-;    IFEQ HADES | RAVEN
+;    IFEQ HADES
  clr.w    d0
  bsr      cartscan
 ;    ENDIF
@@ -965,7 +965,7 @@ bot_l4:
 
 ; FIXME: boot loader for CTPCI invokes trap #0 here
 
-;    IFEQ HADES | RAVEN
+;    IFEQ HADES
  moveq    #1,d0
  bsr      cartscan
 ;    ENDIF
diff --git a/kernel/vdi/mxvdiknl.s b/kernel/vdi/mxvdiknl.s
index bfa6196..4f1c5a5 100644
--- a/kernel/vdi/mxvdiknl.s
+++ b/kernel/vdi/mxvdiknl.s
@@ -564,8 +564,10 @@ chk_blitter:      movem.l  d1/a0-a1,-(sp)
                   movea.l  8.w,a1            ;Busfehler-Vektor sichern
                   move.l   #bus_err_tst,8.w  ;eigenen Vektor eintragen
                   moveq.l  #0,d0
+IFEQ RAVEN
                   tst.w    ($ffff8a00).w     ;auf Hardware zugreifen
                   moveq.l  #2,d0             ;Blitter ist vorhanden
+ENDIF
 bus_err_tst:      move.l   a1,8.w            ;Busfehler-Vektor zurueck
                   movea.l  a0,sp             ;Stackpointer zurueck
                   move.w   d1,sr             ;Statusregister zurueck