diff --git a/doc/cmdline.md b/doc/cmdline.md
index eb36d322..33426633 100644
--- a/doc/cmdline.md
+++ b/doc/cmdline.md
@@ -12,6 +12,15 @@ The `bool` setting is one of `on, off, true false, 1, 0`.
 * `debug`: Enable kernel debug.  Debug messages are printed to the
    console until Finit starts up, unless `loglevel=7` (below) is used.
 
+* `fsck.mode=<auto,force,skip>`, default: `auto`, unless built with
+  `configure --enable-fastboot`, in which case the default is `skip`
+
+* `fsck.repair=<preen,yes,no>`, default: `preen`, unless built with
+  `configure --enable-fsckfix`, in which case the default is `yes`.
+  This configure option also sets `fsck.mode=force`, unless fastboot
+  is selected at the same time.  I.e., the `--enable-fastboot` build
+  option overrides the `fsck.mode` default value.
+
 * `finit.cond=foo[,bar[,baz]]`: set `<boot/foo>` condition, optionally
   multiple conditions can be set using the same option, separated with a
   comma.  Alternatively, multiple `foo.cond=arg` can be given.  Each will
diff --git a/src/conf.c b/src/conf.c
index 8e58ff38..da77e3b7 100644
--- a/src/conf.c
+++ b/src/conf.c
@@ -62,8 +62,25 @@ static TAILQ_HEAD(, env_entry) env_list = TAILQ_HEAD_INITIALIZER(env_list);
 struct rlimit initial_rlimit[RLIMIT_NLIMITS];
 struct rlimit global_rlimit[RLIMIT_NLIMITS];
 
+/*
+ * --enable-fastboot => fsck_mode: NULL => no fsck by default
+ * --enable-fsckfix  => fsck_mode: "-f" + fsck_repair: "y"
+ */
+#ifdef FSCK_FIX
+# ifdef FAST_BOOT
+char *fsck_mode = NULL;
+# else
+char *fsck_mode = "-f";
+# endif
+char *fsck_repair = "-y";
+#else
+# ifdef FAST_BOOT
+char *fsck_mode = NULL;
+# else
 char *fsck_mode = "";
+# endif
 char *fsck_repair = "-p";
+#endif
 
 char cgroup_current[16]; /* cgroup.NAME sets current cgroup for a set of services */
 
diff --git a/src/finit.c b/src/finit.c
index ea37dd3f..1691effa 100644
--- a/src/finit.c
+++ b/src/finit.c
@@ -255,11 +255,7 @@ static int fsck(int pass)
 			continue;
 		}
 
-#ifdef FSCK_FIX
-		snprintf(cmd, sizeof(cmd), "fsck -yf %s", dev);
-#else
 		snprintf(cmd, sizeof(cmd), "fsck %s %s %s", fsck_mode, fsck_repair, dev);
-#endif
 		dbg("Running pass %d fsck command %s", pass, cmd);
 		fsck_rc = run_interactive(cmd, "Checking filesystem %s", dev);
 		/*
@@ -282,7 +278,6 @@ static int fsck(int pass)
 static int fsck_all(void)
 {
 	int rc = 0;
-#ifndef FAST_BOOT
 	int pass;
 
 	if (!fsck_mode)
@@ -293,7 +288,7 @@ static int fsck_all(void)
 		if (rc)
 			break;
 	}
-#endif
+
 	return rc;
 }