check if user forgets to specify the --level
when build a new array. such as:
./mdadm -B /dev/md0 -n2 /dev/loop[0-1]
Signed-off-by: Zhilong Liu <zlliu@suse.com>
Signed-off-by: Jes Sorensen <Jes.Sorensen@gmail.com>
int uuid[4] = {0,0,0,0};
struct map_ent *map = NULL;
+ if (s->level == UnSet) {
+ pr_err("a RAID level is needed to Build an array.\n");
+ return 1;
+ }
/* scan all devices, make sure they really are block devices */
for (dv = devlist; dv; dv=dv->next) {
subdevs++;