diff --git a/lib/libufs/libufs.h b/lib/libufs/libufs.h
index 8160fdcd68a9..63a8dc170997 100644
--- a/lib/libufs/libufs.h
+++ b/lib/libufs/libufs.h
@@ -117,12 +117,6 @@ int	ffs_sbput(void *, struct fs *, off_t,
 void	ffs_update_dinode_ckhash(struct fs *, struct ufs2_dinode *);
 int	ffs_verify_dinode_ckhash(struct fs *, struct ufs2_dinode *);
 
-/*
- * Request standard superblock location in ffs_sbget
- */
-#define	STDSB			-1	/* Fail if check-hash is bad */
-#define	STDSB_NOHASHFAIL	-2	/* Ignore check-hash failure */
-
 /*
  * block.c
  */
diff --git a/stand/libsa/ufs.c b/stand/libsa/ufs.c
index a4015dea74c2..31212bf3473a 100644
--- a/stand/libsa/ufs.c
+++ b/stand/libsa/ufs.c
@@ -154,11 +154,6 @@ static int	ufs_use_sa_read(void *, off_t, void **, int);
 /* from ffs_subr.c */
 int	ffs_sbget(void *, struct fs **, off_t, char *,
 	    int (*)(void *, off_t, void **, int));
-/*
- * Request standard superblock location in ffs_sbget
- */
-#define	STDSB			-1	/* Fail if check-hash is bad */
-#define	STDSB_NOHASHFAIL	-2	/* Ignore check-hash failure */
 
 /*
  * Read a new inode into a file structure.
diff --git a/sys/ufs/ffs/ffs_extern.h b/sys/ufs/ffs/ffs_extern.h
index c835239986ba..fdc08dc6aafb 100644
--- a/sys/ufs/ffs/ffs_extern.h
+++ b/sys/ufs/ffs/ffs_extern.h
@@ -137,12 +137,6 @@ int	ffs_breadz(struct ufsmount *, struct vnode *, daddr_t, daddr_t, int,
 #define	FFSR_FORCE	0x0001
 #define	FFSR_UNSUSPEND	0x0002
 
-/*
- * Request standard superblock location in ffs_sbget
- */
-#define	STDSB			-1	/* Fail if check-hash is bad */
-#define	STDSB_NOHASHFAIL	-2	/* Ignore check-hash failure */
-
 /*
  * Definitions for TRIM interface
  *
diff --git a/sys/ufs/ffs/ffs_subr.c b/sys/ufs/ffs/ffs_subr.c
index 3e6cefa7be0c..60d90aac5bcc 100644
--- a/sys/ufs/ffs/ffs_subr.c
+++ b/sys/ufs/ffs/ffs_subr.c
@@ -50,11 +50,6 @@ uint32_t ffs_calc_sbhash(struct fs *);
 struct malloc_type;
 #define UFS_MALLOC(size, type, flags) malloc(size)
 #define UFS_FREE(ptr, type) free(ptr)
-/*
- * Request standard superblock location in ffs_sbget
- */
-#define	STDSB			-1	/* Fail if check-hash is bad */
-#define	STDSB_NOHASHFAIL	-2	/* Ignore check-hash failure */
 
 #else /* _KERNEL */
 #include <sys/systm.h>
diff --git a/sys/ufs/ffs/fs.h b/sys/ufs/ffs/fs.h
index df003c4282d9..00c153b9684d 100644
--- a/sys/ufs/ffs/fs.h
+++ b/sys/ufs/ffs/fs.h
@@ -77,6 +77,18 @@
 #define	SBLOCKSIZE	  8192
 #define	SBLOCKSEARCH \
 	{ SBLOCK_UFS2, SBLOCK_UFS1, SBLOCK_FLOPPY, SBLOCK_PIGGY, -1 }
+/*
+ * Request standard superblock location in ffs_sbget().
+ *
+ * STDSB will fail if the superblock has a check hash and it is wrong.
+ *
+ * STDSB_NOHASHFAIL will note that the check hash is wrong but will
+ *    still return the superblock. This is used by the bootstrap code
+ *    to give the system a chance to come up so that fsck can be run
+ *    to correct the problem.
+ */
+#define	STDSB			-1	/* Fail if check-hash is bad */
+#define	STDSB_NOHASHFAIL	-2	/* Ignore check-hash failure */
 
 /*
  * Max number of fragments per block. This value is NOT tweakable.