diff --git a/Build.c b/Build.c
index 358f8e6..2d9f68f 100644
--- a/Build.c
+++ b/Build.c
@@ -36,7 +36,7 @@
 int Build(char *mddev, int chunk, int level, int layout,
 	  int raiddisks, mddev_dev_t devlist, int assume_clean,
 	  char *bitmap_file, int bitmap_chunk, int write_behind,
-	  int delay, int verbose, int autof)
+	  int delay, int verbose, int autof, unsigned long long size)
 {
 	/* Build a linear or raid0 arrays without superblocks
 	 * We cannot really do any checks, we just do it.
@@ -57,7 +57,6 @@ int Build(char *mddev, int chunk, int level, int layout,
 	int subdevs = 0, missing_disks = 0;
 	mddev_dev_t dv;
 	int bitmap_fd;
-	unsigned long long size = ~0ULL;
 	unsigned long long bitmapsize;
 	int mdfd;
 	char chosen_name[1024];
@@ -135,7 +134,7 @@ int Build(char *mddev, int chunk, int level, int layout,
 	if (vers >= 9000) {
 		mdu_array_info_t array;
 		array.level = level;
-		array.size = 0;
+		array.size = size;
 		array.nr_disks = raiddisks;
 		array.raid_disks = raiddisks;
 		array.md_minor = 0;
@@ -194,7 +193,7 @@ int Build(char *mddev, int chunk, int level, int layout,
 		    (size == 0 || dsize < size))
 				size = dsize;
 		close(fd);
-		if (vers>= 9000) {
+		if (vers >= 9000) {
 			mdu_disk_info_t disk;
 			disk.number = i;
 			disk.raid_disk = i;
diff --git a/Makefile b/Makefile
index 63c9454..a0d50b5 100644
--- a/Makefile
+++ b/Makefile
@@ -127,13 +127,13 @@ mdadm.tcc : $(SRCS) mdadm.h
 
 mdadm.klibc : $(SRCS) mdadm.h
 	rm -f $(OBJS) 
-	gcc -nostdinc -iwithprefix include -I$(KLIBC)/klibc/include -I$(KLIBC)/linux/include -I$(KLIBC)/klibc/arch/i386/include -I$(KLIBC)/klibc/include/bits32 $(CFLAGS) $(SRCS)
+	$(CC) -nostdinc -iwithprefix include -I$(KLIBC)/klibc/include -I$(KLIBC)/linux/include -I$(KLIBC)/klibc/arch/i386/include -I$(KLIBC)/klibc/include/bits32 $(CFLAGS) $(SRCS)
 
 mdadm.Os : $(SRCS) mdadm.h
-	gcc -o mdadm.Os $(CFLAGS)  -DHAVE_STDINT_H -Os $(SRCS)
+	$(CC) -o mdadm.Os $(CFLAGS)  -DHAVE_STDINT_H -Os $(SRCS)
 
 mdadm.O2 : $(SRCS) mdadm.h
-	gcc -o mdadm.O2 $(CFLAGS)  -DHAVE_STDINT_H -O2 $(SRCS)
+	$(CC) -o mdadm.O2 $(CFLAGS)  -DHAVE_STDINT_H -O2 $(SRCS)
 
 mdmon : $(MON_OBJS)
 	$(CC) $(LDFLAGS) -o mdmon $(MON_OBJS) $(LDLIBS)
diff --git a/Manage.c b/Manage.c
index 1f38fa5..65235bc 100644
--- a/Manage.c
+++ b/Manage.c
@@ -588,6 +588,11 @@ int Manage_subdevs(char *devname, int fd,
 								fprintf(stderr, Name ": re-added %s\n", dv->devname);
 							continue;
 						}
+						if (errno == ENOMEM || errno == EROFS) {
+							fprintf(stderr, Name ": add new device failed for %s: %s\n",
+								dv->devname, strerror(errno));
+							return 1;
+						}
 						/* fall back on normal-add */
 					}
 				}
diff --git a/bitmap.c b/bitmap.c
index b9bbaeb..850b0ce 100644
--- a/bitmap.c
+++ b/bitmap.c
@@ -271,6 +271,7 @@ int ExamineBitmap(char *filename, int brief, struct supertype *st)
 	int rv = 1;
 	char buf[64];
 	int swap;
+	__u32 uuid32[4];
 
 	info = bitmap_file_read(filename, brief, &st);
 	if (!info)
@@ -298,19 +299,20 @@ int ExamineBitmap(char *filename, int brief, struct supertype *st)
 #else
 		swap = 1;
 #endif
-	if (swap) {
-	printf("            UUID : %08x:%08x:%08x:%08x\n",
-					swapl(*(__u32 *)(sb->uuid+0)),
-					swapl(*(__u32 *)(sb->uuid+4)),
-					swapl(*(__u32 *)(sb->uuid+8)),
-					swapl(*(__u32 *)(sb->uuid+12)));
-	} else {
-	printf("            UUID : %08x:%08x:%08x:%08x\n",
-					*(__u32 *)(sb->uuid+0),
-					*(__u32 *)(sb->uuid+4),
-					*(__u32 *)(sb->uuid+8),
-					*(__u32 *)(sb->uuid+12));
-	}
+	memcpy(uuid32, sb->uuid, 16);
+	if (swap)
+		printf("            UUID : %08x:%08x:%08x:%08x\n",
+		       swapl(uuid32[0]),
+		       swapl(uuid32[1]),
+		       swapl(uuid32[2]),
+		       swapl(uuid32[3]));
+	else
+		printf("            UUID : %08x:%08x:%08x:%08x\n",
+		       uuid32[0],
+		       uuid32[1],
+		       uuid32[2],
+		       uuid32[3]);
+
 	printf("          Events : %llu\n", (unsigned long long)sb->events);
 	printf("  Events Cleared : %llu\n", (unsigned long long)sb->events_cleared);
 	printf("           State : %s\n", bitmap_state(sb->state));
diff --git a/mdadm.c b/mdadm.c
index 3b14ea5..99a1771 100644
--- a/mdadm.c
+++ b/mdadm.c
@@ -378,7 +378,8 @@ int main(int argc, char *argv[])
 
 
 		case O(GROW,'z'):
-		case O(CREATE,'z'): /* size */
+		case O(CREATE,'z'):
+		case O(BUILD,'z'): /* size */
 			if (size >= 0) {
 				fprintf(stderr, Name ": size may only be specified once. "
 					"Second value is %s.\n", optarg);
@@ -1202,7 +1203,7 @@ int main(int argc, char *argv[])
 		rv = Build(devlist->devname, chunk, level, layout,
 			   raiddisks, devlist->next, assume_clean,
 			   bitmap_file, bitmap_chunk, write_behind,
-			   delay, verbose-quiet, autof);
+			   delay, verbose-quiet, autof, size);
 		break;
 	case CREATE:
 		if (delay == 0) delay = DEFAULT_BITMAP_DELAY;
diff --git a/mdadm.h b/mdadm.h
index 8aa38c5..89ec77a 100644
--- a/mdadm.h
+++ b/mdadm.h
@@ -730,7 +730,7 @@ extern int Assemble(struct supertype *st, char *mddev,
 extern int Build(char *mddev, int chunk, int level, int layout,
 		 int raiddisks, mddev_dev_t devlist, int assume_clean,
 		 char *bitmap_file, int bitmap_chunk, int write_behind,
-		 int delay, int verbose, int autof);
+		 int delay, int verbose, int autof, unsigned long long size);
 
 
 extern int Create(struct supertype *st, char *mddev,
diff --git a/super1.c b/super1.c
index bf9e4c8..35ef771 100644
--- a/super1.c
+++ b/super1.c
@@ -687,10 +687,8 @@ static int update_super1(struct supertype *st, struct mdinfo *info,
 
 		if ((rfd = open("/dev/urandom", O_RDONLY)) < 0 ||
 		    read(rfd, sb->device_uuid, 16) != 16) {
-			*(__u32*)(sb->device_uuid) = random();
-			*(__u32*)(sb->device_uuid+4) = random();
-			*(__u32*)(sb->device_uuid+8) = random();
-			*(__u32*)(sb->device_uuid+12) = random();
+			__u32 r[4] = {random(), random(), random(), random()};
+			memcpy(sb->device_uuid, r, 16);
 		}
 
 		sb->dev_roles[i] =
@@ -816,10 +814,8 @@ static int init_super1(struct supertype *st, mdu_array_info_t *info,
 	else {
 		if ((rfd = open("/dev/urandom", O_RDONLY)) < 0 ||
 		    read(rfd, sb->set_uuid, 16) != 16) {
-			*(__u32*)(sb->set_uuid) = random();
-			*(__u32*)(sb->set_uuid+4) = random();
-			*(__u32*)(sb->set_uuid+8) = random();
-			*(__u32*)(sb->set_uuid+12) = random();
+			__u32 r[4] = {random(), random(), random(), random()};
+			memcpy(sb->set_uuid, r, 16);
 		}
 		if (rfd >= 0) close(rfd);
 	}
@@ -1023,12 +1019,12 @@ static int write_init_super1(struct supertype *st)
 
 		if ((rfd = open("/dev/urandom", O_RDONLY)) < 0 ||
 		    read(rfd, sb->device_uuid, 16) != 16) {
-			*(__u32*)(sb->device_uuid) = random();
-			*(__u32*)(sb->device_uuid+4) = random();
-			*(__u32*)(sb->device_uuid+8) = random();
-			*(__u32*)(sb->device_uuid+12) = random();
+			__u32 r[4] = {random(), random(), random(), random()};
+			memcpy(sb->device_uuid, r, 16);
 		}
-		if (rfd >= 0) close(rfd);
+		if (rfd >= 0)
+			close(rfd);
+
 		sb->events = 0;
 
 		refst =*st;