Fix bad metadata formatting

Certain operations (Detail.c mainly) would print out the metadata of
an array in a format that the scan operation in super0.c and super1.c
would later reject as unknown when it was found in the mdadm.conf file.
Use a consistent format, but also modify the super0 and super1 match
methods to accept the other format without complaint.

Signed-off-by: Doug Ledford <dledford@redhat.com>
Signed-off-by: NeilBrown <neilb@suse.de>

1 files changed, 3 insertions, 0 deletions

diff --git a/super1.c b/super1.c
index 62a3ab9..1eb88aa 100644
--- a/super1.c
+++ b/super1.c
@@ -1203,6 +1203,9 @@ static struct supertype *match_metadata_desc1(char *arg)
 	st->ss = &super1;
 	st->max_devs = 384;
 	st->sb = NULL;
+	/* Eliminate pointless leading 0 from some versions of mdadm -D */
+	if (strncmp(arg, "01.", 3) == 0)
+		arg++;
 	if (strcmp(arg, "1.0") == 0) {
 		st->minor_version = 0;
 		return st;