lvconvert: Reinstate mirror to raid conversions.

Reinstate conversions from mirror to raid stopped
by commit 46c8d6bb8ae91ee67c8633496cc6c3d92bb4f3ce
(lvconvert: Improve message for raid without -m).

1 files changed, 7 insertions, 2 deletions

diff --git a/tools/lvconvert.c b/tools/lvconvert.c
index b309b9e80..82b804f5c 100644
--- a/tools/lvconvert.c
+++ b/tools/lvconvert.c
@@ -242,9 +242,9 @@ static int _check_conversion_type(struct cmd_context *cmd, const char *type_str)
 	if (!type_str || !*type_str)
 		return 1;
 
-	if (!strcmp(type_str, "mirror") || !strncmp(type_str, "raid", 4)) {
+	if (!strcmp(type_str, "mirror")) {
 		if (!arg_count(cmd, mirrors_ARG)) {
-			log_error("Mirror and raid conversions require -m/--mirrors");
+			log_error("Conversions to --type mirror require -m/--mirrors");
 			return 0;
 		}
 		return 1;
@@ -1734,6 +1734,11 @@ static int _lvconvert_raid(struct logical_volume *lv, struct lvconvert_params *l
 		return 0;
 	}
 
+	if (seg_is_linear(seg) && !arg_count(cmd, mirrors_ARG)) {
+		log_error("Raid conversions require -m/--mirrors");
+		return 0;
+	}
+
 	/* Change number of RAID1 images */
 	if (arg_count(cmd, mirrors_ARG) || arg_count(cmd, splitmirrors_ARG)) {
 		image_count = lv_raid_image_count(lv);