diff options
Diffstat (limited to 'Assemble.c')
| -rw-r--r-- | Assemble.c | 19 |
1 files changed, 19 insertions, 0 deletions
@@ -514,6 +514,25 @@ int Assemble(struct supertype *st, char *mddev, int mdfd, best = newbest; bestcnt = newbestcnt; } + if (best[i] >=0 && + devices[best[i]].events == devices[devcnt].events && + devices[best[i]].minor != devices[devcnt].minor && + st->ss->major == 0 && + info.array.level != -4) { + /* two different devices with identical superblock. + * Could be a mis-detection caused by overlapping + * partitions. fail-safe. + */ + fprintf(stderr, Name ": WARNING %s and %s appear" + " to have very similar superblocks.\n" + " If they are really different, " + "please --zero the superblock on one\n" + " If they are the same, please remove " + "one from the list.\n", + devices[best[i]].devname, devname); + if (must_close) close(mdfd); + return 1; + } if (best[i] == -1 || devices[best[i]].events < devices[devcnt].events) best[i] = devcnt; |