Really finish softupdate setting from the label editor and fix

a few cosmetic problems:

o Allow it to work with scripts (see man page or install.cfg file).
o Preserve old softupdates flag across newfs toggles
o Clean up partitioned/labelled flag handling
o Don't ask for MBR choice again if you've already written it out.
o Actually document the new features.

7 files changed, 80 insertions, 105 deletions

diff --git a/usr.sbin/sade/disks.c b/usr.sbin/sade/disks.c
index 4932528..a033782 100644
--- a/usr.sbin/sade/disks.c
+++ b/usr.sbin/sade/disks.c
@@ -527,7 +527,7 @@ diskPartition(Device *dev)
 	    break;
 	
 	case 'U':
-	    if ((cp = variable_get(DISK_LABELLED)) && !strcmp(cp, "written")) {
+	    if (!variable_cmp(DISK_LABELLED, "written")) {
 		msgConfirm("You've already written this information out - you\n"
 			   "can't undo it.");
 	    }
@@ -624,21 +624,6 @@ diskPartition(Device *dev)
 	     * starts at sector 0), even in cases where the user has requested
 	     * booteasy or a "standard" MBR -- both would be fatal in this case.
 	     */
-#if 0
-	    if ((d->chunks->part->flags & CHUNK_FORCE_ALL) != CHUNK_FORCE_ALL) {
-#ifdef PC98
-		getBootMgr(d->name, &bootipl, &bootipl_size,
-			   &bootmenu, &bootmenu_size);
-		if (bootipl != NULL && bootmenu != NULL)
-		    Set_Boot_Mgr(d, bootipl, bootipl_size,
-				 bootmenu, bootmenu_size);
-#else
-		getBootMgr(d->name, &mbrContents, &mbrSize);
-		if (mbrContents != NULL)
-		    Set_Boot_Mgr(d, mbrContents, mbrSize);
-#endif
-	    }
-#else
 	    /*
 	     * Don't offer to update the MBR on this disk if the first "real"
 	     * chunk looks like a FreeBSD "all disk" partition, or the disk is
@@ -646,19 +631,20 @@ diskPartition(Device *dev)
 	     */
 	    if ((d->chunks->part->type != freebsd) ||
 		(d->chunks->part->offset > 1)) {
+		if (variable_cmp(DISK_PARTITIONED, "written")) {
 #ifdef PC98
-		getBootMgr(d->name, &bootipl, &bootipl_size,
-			   &bootmenu, &bootmenu_size);
-		if (bootipl != NULL && bootmenu != NULL)
-		    Set_Boot_Mgr(d, bootipl, bootipl_size,
-				 bootmenu, bootmenu_size);
+		    getBootMgr(d->name, &bootipl, &bootipl_size,
+			&bootmenu, &bootmenu_size);
+		    if (bootipl != NULL && bootmenu != NULL)
+			Set_Boot_Mgr(d, bootipl, bootipl_size,
+			    bootmenu, bootmenu_size);
 #else
-		getBootMgr(d->name, &mbrContents, &mbrSize);
-		if (mbrContents != NULL)
-		    Set_Boot_Mgr(d, mbrContents, mbrSize);
+		    getBootMgr(d->name, &mbrContents, &mbrSize);
+		    if (mbrContents != NULL)
+			Set_Boot_Mgr(d, mbrContents, mbrSize);
+		}
 #endif
 	    }
-#endif
 	    break;
 
 	case 'Z':
@@ -807,7 +793,9 @@ diskPartitionWrite(dialogMenuItem *self)
 {
     Device **devs;
     int i;
-    char *cp;
+
+    if (!variable_cmp(DISK_PARTITIONED, "written"))
+	return DITEM_SUCCESS;
 
     devs = deviceFind(NULL, DEVICE_TYPE_DISK);
     if (!devs) {
@@ -816,10 +804,6 @@ diskPartitionWrite(dialogMenuItem *self)
     }
     if (isDebug())
 	msgDebug("diskPartitionWrite: Examining %d devices\n", deviceCount(devs));
-    cp = variable_get(DISK_PARTITIONED);
-    if (cp && !strcmp(cp, "written"))
-	return DITEM_SUCCESS;
-
     for (i = 0; devs[i]; i++) {
 	Disk *d = (Disk *)devs[i]->private;
 	static u_char *boot1;
@@ -844,10 +828,6 @@ diskPartitionWrite(dialogMenuItem *self)
 	    msgConfirm("ERROR: Unable to write data to disk %s!", d->name);
 	    return DITEM_FAILURE;
 	}
-
-	/* If we've been through here before, we don't need to do the rest */
-	if (cp && !strcmp(cp, "written"))
-	    return DITEM_SUCCESS;
     }
     /* Now it's not "yes", but "written" */
     variable_set2(DISK_PARTITIONED, "written", 0);
@@ -972,3 +952,4 @@ diskPartitionNonInteractive(Device *dev)
 	variable_set2(DISK_PARTITIONED, "yes", 0);
     }
 }
+
diff --git a/usr.sbin/sade/label.c b/usr.sbin/sade/label.c
index 64ec624..9d18939 100644
--- a/usr.sbin/sade/label.c
+++ b/usr.sbin/sade/label.c
@@ -174,9 +174,7 @@ diskLabelEditor(dialogMenuItem *self)
 	}
     }
     if (DITEM_STATUS(i) != DITEM_FAILURE) {
-	char *cp;
-
-	if (((cp = variable_get(DISK_LABELLED)) == NULL) || (strcmp(cp, "written")))
+	if (variable_cmp(DISK_LABELLED, "written"))
 	    variable_set2(DISK_LABELLED, "yes", 0);
     }
     return i;
@@ -420,7 +418,7 @@ getNewfsCmd(PartInfo *p)
 #define PART_MOUNT_COL	10
 #define PART_SIZE_COL	(PART_MOUNT_COL + MAX_MOUNT_NAME + 3)
 #define PART_NEWFS_COL	(PART_SIZE_COL + 8)
-#define PART_OFF	38
+#define PART_OFF	39
 
 #define TOTAL_AVAIL_LINES       (10)
 #define PSLICE_SHOWABLE          (4)
@@ -882,7 +880,7 @@ diskLabel(Device *dev)
 		}
 
 		/* At this point, we're reasonably "labelled" */
-		if (((cp = variable_get(DISK_LABELLED)) == NULL) || (strcmp(cp, "written")))
+		if (variable_cmp(DISK_LABELLED, "written"))
 		    variable_set2(DISK_LABELLED, "yes", 0);
 	    }
 	    break;
@@ -982,7 +980,7 @@ diskLabel(Device *dev)
 		else
 		    tmp->private_data = p;
 		tmp->private_free = safe_free;
-		if (((cp = variable_get(DISK_LABELLED)) == NULL) || (strcmp(cp, "written")))
+		if (variable_cmp(DISK_LABELLED, "written"))
 		    variable_set2(DISK_LABELLED, "yes", 0);
 		record_label_chunks(devs, dev);
 		clear_wins();
@@ -1013,7 +1011,7 @@ diskLabel(Device *dev)
 		break;
 	    }
 	    Delete_Chunk(label_chunk_info[here].c->disk, label_chunk_info[here].c);
-	    if (((cp = variable_get(DISK_LABELLED)) == NULL) || (strcmp(cp, "written")))
+	    if (variable_cmp(DISK_LABELLED, "written"))
 		variable_set2(DISK_LABELLED, "yes", 0);
 	    record_label_chunks(devs, dev);
 	    break;
@@ -1042,7 +1040,7 @@ diskLabel(Device *dev)
 			strcpy(p->mountpoint, "/bogus");
 		    }
 		}
-		if (((cp = variable_get(DISK_LABELLED)) == NULL) || (strcmp(cp, "written")))
+		if (variable_cmp(DISK_LABELLED, "written"))
 		    variable_set2(DISK_LABELLED, "yes", 0);
 		record_label_chunks(devs, dev);
 		clear_wins();
@@ -1071,6 +1069,8 @@ diskLabel(Device *dev)
 		else
 		    msg = MSG_NOT_APPLICABLE;
 	    }
+	    else
+		msg = MSG_NOT_APPLICABLE;
 	    break;
 
 	case 'T':	/* Toggle newfs state */
@@ -1078,9 +1078,11 @@ diskLabel(Device *dev)
 		PartInfo *pi = ((PartInfo *)label_chunk_info[here].c->private_data);
 		label_chunk_info[here].c->private_data =
 		    new_part(pi ? pi->mountpoint : NULL, pi ? !pi->newfs : TRUE, label_chunk_info[here].c->size);
+		if (pi && pi->soft)
+		    ((PartInfo *)label_chunk_info[here].c->private_data)->soft = 1;
 		safe_free(pi);
 		label_chunk_info[here].c->private_free = safe_free;
-		if (((cp = variable_get(DISK_LABELLED)) == NULL) || (strcmp(cp, "written")))
+		if (variable_cmp(DISK_LABELLED, "written"))
 		    variable_set2(DISK_LABELLED, "yes", 0);
 	    }
 	    else
@@ -1089,7 +1091,7 @@ diskLabel(Device *dev)
 
 	case 'U':
 	    clear();
-	    if ((cp = variable_get(DISK_LABELLED)) && !strcmp(cp, "written")) {
+	    if (!variable_cmp(DISK_LABELLED, "written")) {
 		msgConfirm("You've already written out your changes -\n"
 			   "it's too late to undo!");
 	    }
@@ -1113,10 +1115,10 @@ diskLabel(Device *dev)
 	    break;
 
 	case 'W':
-	    if ((cp = variable_get(DISK_LABELLED)) && !strcmp(cp, "written")) {
+	    if (!variable_cmp(DISK_LABELLED, "written")) {
 		msgConfirm("You've already written out your changes - if you\n"
-			   "wish to overwrite them, you'll have to start this\n"
-			   "procedure again from the beginning.");
+			   "wish to overwrite them, you'll have to restart\n"
+			   "sysinstall first.");
 	    }
 	    else if (!msgNoYes("WARNING:  This should only be used when modifying an EXISTING\n"
 			  "installation.  If you are installing FreeBSD for the first time\n"
@@ -1149,7 +1151,7 @@ diskLabel(Device *dev)
 		    if (devs[i]->enabled)
 		    	slice_wizard(((Disk *)devs[i]->private));
 		}
-		if (((cp = variable_get(DISK_LABELLED)) == NULL) || (strcmp(cp, "written")))
+		if (variable_cmp(DISK_LABELLED, "written"))
 		    variable_set2(DISK_LABELLED, "yes", 0);
 		DialogActive = TRUE;
 		record_label_chunks(devs, dev);
@@ -1214,7 +1216,7 @@ diskLabelNonInteractive(Device *dev)
 
 	if (label_chunk_info[i].type == PART_SLICE) {
 	    char name[512];
-	    int entries = 1;
+	    int soft, entries = 1;
 
 	    while (entries) {
 		snprintf(name, sizeof name, "%s-%d", c1->name, entries);
@@ -1222,7 +1224,7 @@ diskLabelNonInteractive(Device *dev)
 		    int sz;
 		    char typ[10], mpoint[50];
 
-		    if (sscanf(cp, "%s %d %s", typ, &sz, mpoint) != 3) {
+		    if (sscanf(cp, "%s %d %s %d", typ, &sz, mpoint, &soft) < 3) {
 			msgConfirm("For slice entry %s, got an invalid detail entry of: %s",  c1->name, cp);
 			status = DITEM_FAILURE;
 			continue;
@@ -1257,6 +1259,8 @@ diskLabelNonInteractive(Device *dev)
 			else {
 			    tmp->private_data = new_part(mpoint, TRUE, sz);
 			    tmp->private_free = safe_free;
+			    if (!soft)
+				((PartInfo *)tmp->private_data)->soft = 1;
 			    status = DITEM_SUCCESS;
 			}
 		    }
diff --git a/usr.sbin/sade/sade.8 b/usr.sbin/sade/sade.8
index 2cf6fca..440a429 100644
--- a/usr.sbin/sade/sade.8
+++ b/usr.sbin/sade/sade.8
@@ -320,9 +320,10 @@ A 20MB root file system (all sizes are in 512 byte blocks).
 A 64MB swap partition.
 .It Li "da0s2-3=ufs 204800 /var"
 A 100MB /var file system.
-.It Li "da0s2-4=ufs 0 /usr"
+.It Li "da0s2-4=ufs 0 /usr 1"
 With the balance of free space (around 316MB) going to the /usr
-file system.
+file system and with soft-updates enabled (the argument following
+the mount point, if non-zero, means to set the soft updates flag).
 .El
 .Pp
 One can also use the
diff --git a/usr.sbin/sysinstall/disks.c b/usr.sbin/sysinstall/disks.c
index 4932528..a033782 100644
--- a/usr.sbin/sysinstall/disks.c
+++ b/usr.sbin/sysinstall/disks.c
@@ -527,7 +527,7 @@ diskPartition(Device *dev)
 	    break;
 	
 	case 'U':
-	    if ((cp = variable_get(DISK_LABELLED)) && !strcmp(cp, "written")) {
+	    if (!variable_cmp(DISK_LABELLED, "written")) {
 		msgConfirm("You've already written this information out - you\n"
 			   "can't undo it.");
 	    }
@@ -624,21 +624,6 @@ diskPartition(Device *dev)
 	     * starts at sector 0), even in cases where the user has requested
 	     * booteasy or a "standard" MBR -- both would be fatal in this case.
 	     */
-#if 0
-	    if ((d->chunks->part->flags & CHUNK_FORCE_ALL) != CHUNK_FORCE_ALL) {
-#ifdef PC98
-		getBootMgr(d->name, &bootipl, &bootipl_size,
-			   &bootmenu, &bootmenu_size);
-		if (bootipl != NULL && bootmenu != NULL)
-		    Set_Boot_Mgr(d, bootipl, bootipl_size,
-				 bootmenu, bootmenu_size);
-#else
-		getBootMgr(d->name, &mbrContents, &mbrSize);
-		if (mbrContents != NULL)
-		    Set_Boot_Mgr(d, mbrContents, mbrSize);
-#endif
-	    }
-#else
 	    /*
 	     * Don't offer to update the MBR on this disk if the first "real"
 	     * chunk looks like a FreeBSD "all disk" partition, or the disk is
@@ -646,19 +631,20 @@ diskPartition(Device *dev)
 	     */
 	    if ((d->chunks->part->type != freebsd) ||
 		(d->chunks->part->offset > 1)) {
+		if (variable_cmp(DISK_PARTITIONED, "written")) {
 #ifdef PC98
-		getBootMgr(d->name, &bootipl, &bootipl_size,
-			   &bootmenu, &bootmenu_size);
-		if (bootipl != NULL && bootmenu != NULL)
-		    Set_Boot_Mgr(d, bootipl, bootipl_size,
-				 bootmenu, bootmenu_size);
+		    getBootMgr(d->name, &bootipl, &bootipl_size,
+			&bootmenu, &bootmenu_size);
+		    if (bootipl != NULL && bootmenu != NULL)
+			Set_Boot_Mgr(d, bootipl, bootipl_size,
+			    bootmenu, bootmenu_size);
 #else
-		getBootMgr(d->name, &mbrContents, &mbrSize);
-		if (mbrContents != NULL)
-		    Set_Boot_Mgr(d, mbrContents, mbrSize);
+		    getBootMgr(d->name, &mbrContents, &mbrSize);
+		    if (mbrContents != NULL)
+			Set_Boot_Mgr(d, mbrContents, mbrSize);
+		}
 #endif
 	    }
-#endif
 	    break;
 
 	case 'Z':
@@ -807,7 +793,9 @@ diskPartitionWrite(dialogMenuItem *self)
 {
     Device **devs;
     int i;
-    char *cp;
+
+    if (!variable_cmp(DISK_PARTITIONED, "written"))
+	return DITEM_SUCCESS;
 
     devs = deviceFind(NULL, DEVICE_TYPE_DISK);
     if (!devs) {
@@ -816,10 +804,6 @@ diskPartitionWrite(dialogMenuItem *self)
     }
     if (isDebug())
 	msgDebug("diskPartitionWrite: Examining %d devices\n", deviceCount(devs));
-    cp = variable_get(DISK_PARTITIONED);
-    if (cp && !strcmp(cp, "written"))
-	return DITEM_SUCCESS;
-
     for (i = 0; devs[i]; i++) {
 	Disk *d = (Disk *)devs[i]->private;
 	static u_char *boot1;
@@ -844,10 +828,6 @@ diskPartitionWrite(dialogMenuItem *self)
 	    msgConfirm("ERROR: Unable to write data to disk %s!", d->name);
 	    return DITEM_FAILURE;
 	}
-
-	/* If we've been through here before, we don't need to do the rest */
-	if (cp && !strcmp(cp, "written"))
-	    return DITEM_SUCCESS;
     }
     /* Now it's not "yes", but "written" */
     variable_set2(DISK_PARTITIONED, "written", 0);
@@ -972,3 +952,4 @@ diskPartitionNonInteractive(Device *dev)
 	variable_set2(DISK_PARTITIONED, "yes", 0);
     }
 }
+
diff --git a/usr.sbin/sysinstall/install.cfg b/usr.sbin/sysinstall/install.cfg
index 2660547..fd8e520 100644
--- a/usr.sbin/sysinstall/install.cfg
+++ b/usr.sbin/sysinstall/install.cfg
@@ -1,6 +1,8 @@
 # This is the installation configuration file for my test machine,
 # crate.cdrom.com.
 # It is included here merely as a sort-of-documented example.
+#
+# $FreeBSD$
 
 # Turn on extra debugging.
 debug=yes
@@ -55,7 +57,8 @@ ad0s1-1=ufs 40960 /
 # And a 20MB swap partition
 ad0s1-2=swap 40960 none
 # Followed by a /usr partition using all remaining space (size 0 = free space)
-ad0s1-3=ufs 0 /usr
+# and with softupdates enabled (non-zero arg following mountpoint).
+ad0s1-3=ufs 0 /usr 1
 # Let's do it!
 diskLabelEditor
 
diff --git a/usr.sbin/sysinstall/label.c b/usr.sbin/sysinstall/label.c
index 64ec624..9d18939 100644
--- a/usr.sbin/sysinstall/label.c
+++ b/usr.sbin/sysinstall/label.c
@@ -174,9 +174,7 @@ diskLabelEditor(dialogMenuItem *self)
 	}
     }
     if (DITEM_STATUS(i) != DITEM_FAILURE) {
-	char *cp;
-
-	if (((cp = variable_get(DISK_LABELLED)) == NULL) || (strcmp(cp, "written")))
+	if (variable_cmp(DISK_LABELLED, "written"))
 	    variable_set2(DISK_LABELLED, "yes", 0);
     }
     return i;
@@ -420,7 +418,7 @@ getNewfsCmd(PartInfo *p)
 #define PART_MOUNT_COL	10
 #define PART_SIZE_COL	(PART_MOUNT_COL + MAX_MOUNT_NAME + 3)
 #define PART_NEWFS_COL	(PART_SIZE_COL + 8)
-#define PART_OFF	38
+#define PART_OFF	39
 
 #define TOTAL_AVAIL_LINES       (10)
 #define PSLICE_SHOWABLE          (4)
@@ -882,7 +880,7 @@ diskLabel(Device *dev)
 		}
 
 		/* At this point, we're reasonably "labelled" */
-		if (((cp = variable_get(DISK_LABELLED)) == NULL) || (strcmp(cp, "written")))
+		if (variable_cmp(DISK_LABELLED, "written"))
 		    variable_set2(DISK_LABELLED, "yes", 0);
 	    }
 	    break;
@@ -982,7 +980,7 @@ diskLabel(Device *dev)
 		else
 		    tmp->private_data = p;
 		tmp->private_free = safe_free;
-		if (((cp = variable_get(DISK_LABELLED)) == NULL) || (strcmp(cp, "written")))
+		if (variable_cmp(DISK_LABELLED, "written"))
 		    variable_set2(DISK_LABELLED, "yes", 0);
 		record_label_chunks(devs, dev);
 		clear_wins();
@@ -1013,7 +1011,7 @@ diskLabel(Device *dev)
 		break;
 	    }
 	    Delete_Chunk(label_chunk_info[here].c->disk, label_chunk_info[here].c);
-	    if (((cp = variable_get(DISK_LABELLED)) == NULL) || (strcmp(cp, "written")))
+	    if (variable_cmp(DISK_LABELLED, "written"))
 		variable_set2(DISK_LABELLED, "yes", 0);
 	    record_label_chunks(devs, dev);
 	    break;
@@ -1042,7 +1040,7 @@ diskLabel(Device *dev)
 			strcpy(p->mountpoint, "/bogus");
 		    }
 		}
-		if (((cp = variable_get(DISK_LABELLED)) == NULL) || (strcmp(cp, "written")))
+		if (variable_cmp(DISK_LABELLED, "written"))
 		    variable_set2(DISK_LABELLED, "yes", 0);
 		record_label_chunks(devs, dev);
 		clear_wins();
@@ -1071,6 +1069,8 @@ diskLabel(Device *dev)
 		else
 		    msg = MSG_NOT_APPLICABLE;
 	    }
+	    else
+		msg = MSG_NOT_APPLICABLE;
 	    break;
 
 	case 'T':	/* Toggle newfs state */
@@ -1078,9 +1078,11 @@ diskLabel(Device *dev)
 		PartInfo *pi = ((PartInfo *)label_chunk_info[here].c->private_data);
 		label_chunk_info[here].c->private_data =
 		    new_part(pi ? pi->mountpoint : NULL, pi ? !pi->newfs : TRUE, label_chunk_info[here].c->size);
+		if (pi && pi->soft)
+		    ((PartInfo *)label_chunk_info[here].c->private_data)->soft = 1;
 		safe_free(pi);
 		label_chunk_info[here].c->private_free = safe_free;
-		if (((cp = variable_get(DISK_LABELLED)) == NULL) || (strcmp(cp, "written")))
+		if (variable_cmp(DISK_LABELLED, "written"))
 		    variable_set2(DISK_LABELLED, "yes", 0);
 	    }
 	    else
@@ -1089,7 +1091,7 @@ diskLabel(Device *dev)
 
 	case 'U':
 	    clear();
-	    if ((cp = variable_get(DISK_LABELLED)) && !strcmp(cp, "written")) {
+	    if (!variable_cmp(DISK_LABELLED, "written")) {
 		msgConfirm("You've already written out your changes -\n"
 			   "it's too late to undo!");
 	    }
@@ -1113,10 +1115,10 @@ diskLabel(Device *dev)
 	    break;
 
 	case 'W':
-	    if ((cp = variable_get(DISK_LABELLED)) && !strcmp(cp, "written")) {
+	    if (!variable_cmp(DISK_LABELLED, "written")) {
 		msgConfirm("You've already written out your changes - if you\n"
-			   "wish to overwrite them, you'll have to start this\n"
-			   "procedure again from the beginning.");
+			   "wish to overwrite them, you'll have to restart\n"
+			   "sysinstall first.");
 	    }
 	    else if (!msgNoYes("WARNING:  This should only be used when modifying an EXISTING\n"
 			  "installation.  If you are installing FreeBSD for the first time\n"
@@ -1149,7 +1151,7 @@ diskLabel(Device *dev)
 		    if (devs[i]->enabled)
 		    	slice_wizard(((Disk *)devs[i]->private));
 		}
-		if (((cp = variable_get(DISK_LABELLED)) == NULL) || (strcmp(cp, "written")))
+		if (variable_cmp(DISK_LABELLED, "written"))
 		    variable_set2(DISK_LABELLED, "yes", 0);
 		DialogActive = TRUE;
 		record_label_chunks(devs, dev);
@@ -1214,7 +1216,7 @@ diskLabelNonInteractive(Device *dev)
 
 	if (label_chunk_info[i].type == PART_SLICE) {
 	    char name[512];
-	    int entries = 1;
+	    int soft, entries = 1;
 
 	    while (entries) {
 		snprintf(name, sizeof name, "%s-%d", c1->name, entries);
@@ -1222,7 +1224,7 @@ diskLabelNonInteractive(Device *dev)
 		    int sz;
 		    char typ[10], mpoint[50];
 
-		    if (sscanf(cp, "%s %d %s", typ, &sz, mpoint) != 3) {
+		    if (sscanf(cp, "%s %d %s %d", typ, &sz, mpoint, &soft) < 3) {
 			msgConfirm("For slice entry %s, got an invalid detail entry of: %s",  c1->name, cp);
 			status = DITEM_FAILURE;
 			continue;
@@ -1257,6 +1259,8 @@ diskLabelNonInteractive(Device *dev)
 			else {
 			    tmp->private_data = new_part(mpoint, TRUE, sz);
 			    tmp->private_free = safe_free;
+			    if (!soft)
+				((PartInfo *)tmp->private_data)->soft = 1;
 			    status = DITEM_SUCCESS;
 			}
 		    }
diff --git a/usr.sbin/sysinstall/sysinstall.8 b/usr.sbin/sysinstall/sysinstall.8
index 2cf6fca..440a429 100644
--- a/usr.sbin/sysinstall/sysinstall.8
+++ b/usr.sbin/sysinstall/sysinstall.8
@@ -320,9 +320,10 @@ A 20MB root file system (all sizes are in 512 byte blocks).
 A 64MB swap partition.
 .It Li "da0s2-3=ufs 204800 /var"
 A 100MB /var file system.
-.It Li "da0s2-4=ufs 0 /usr"
+.It Li "da0s2-4=ufs 0 /usr 1"
 With the balance of free space (around 316MB) going to the /usr
-file system.
+file system and with soft-updates enabled (the argument following
+the mount point, if non-zero, means to set the soft updates flag).
 .El
 .Pp
 One can also use the