commit e750ad9d6fbd4e6606681a9c81b9a99994255940
Author: Doug Ledford <dledford@redhat.com>
Date:   Thu Apr 8 17:34:47 2010 -0400

    Don't even try to activate non-redundant array types unless all disks
    are present.  This keeps arrays from getting marked as broken in
    the superblock and then permanently blocked from being assembled.
    
    Signed-off-by: Doug Ledford <dledford@redhat.com>

diff --git a/Assemble.c b/Assemble.c
index d059155..81178da 100644
--- a/Assemble.c
+++ b/Assemble.c
@@ -1337,8 +1337,11 @@ int assemble_container_content(struct supertype *st, int mdfd,
 		case LEVEL_LINEAR:
 		case LEVEL_MULTIPATH:
 		case 0:
-			err = sysfs_set_str(content, NULL, "array_state",
-					    "active");
+			if ((working + preexist) == content->array.raid_disks)
+				err = sysfs_set_str(content, NULL,
+						    "array_state", "active");
+			else
+				err = 1;
 			break;
 		default:
 			err = sysfs_set_str(content, NULL, "array_state",