Index: sys/arch/vax/boot/boot/rom.c
===================================================================
RCS file: /cvsroot/src/sys/arch/vax/boot/boot/rom.c,v
retrieving revision 1.10
diff -p -u -r1.10 rom.c
--- sys/arch/vax/boot/boot/rom.c	22 May 2017 16:59:32 -0000	1.10
+++ sys/arch/vax/boot/boot/rom.c	25 Apr 2022 11:48:50 -0000
@@ -102,3 +102,8 @@ romstrategy (void *f, int func, daddr_t 
 	return 0;
 }
 
+int
+romioctl(struct open_file *f, u_long cmd, void *data)
+{
+	return ENOTTY;
+}
Index: sys/arch/vax/boot/boot/vaxstand.h
===================================================================
RCS file: /cvsroot/src/sys/arch/vax/boot/boot/vaxstand.h,v
retrieving revision 1.10
diff -p -u -r1.10 vaxstand.h
--- sys/arch/vax/boot/boot/vaxstand.h	19 Mar 2018 15:43:45 -0000	1.10
+++ sys/arch/vax/boot/boot/vaxstand.h	25 Apr 2022 11:48:50 -0000
@@ -58,7 +58,8 @@ int	ctuopen(struct open_file *, int, int
 int	tmscpopen(struct open_file *, int, int, int, int),
 	    tmscpstrategy(void *, int, daddr_t, size_t, void *, size_t *);
 int	romopen(struct open_file *, int, int, int, int),
-	    romstrategy(void *, int, daddr_t, size_t, void *, size_t *);
+	    romstrategy(void *, int, daddr_t, size_t, void *, size_t *),
+	    romioctl(struct open_file *, u_long, void *);
 int	mfmopen(struct open_file *, int, int, int, int),
 	    mfmstrategy(void *, int, daddr_t, size_t, void *, size_t *);
 int	sdopen(struct open_file *),
Index: sys/arch/vax/boot/xxboot/bootxx.c
===================================================================
RCS file: /cvsroot/src/sys/arch/vax/boot/xxboot/bootxx.c,v
retrieving revision 1.38
diff -p -u -r1.38 bootxx.c
--- sys/arch/vax/boot/xxboot/bootxx.c	1 May 2018 07:03:47 -0000	1.38
+++ sys/arch/vax/boot/xxboot/bootxx.c	25 Apr 2022 11:48:50 -0000
@@ -298,6 +298,12 @@ romstrategy(void *sc, int func, daddr_t 
 	return 0;
 }
 
+int
+romioctl(struct open_file *f, u_long cmd, void *data)
+{
+	return ENOTTY;
+}
+
 /*
  * The 11/750 boot ROM for Massbus disks doesn't seen to have layout info
  * for all RP disks (not RP07 at least) so therefore a very small and dumb