Ah, nevermind. I just discovered that mdadm defaults to the old 0.90 format superblock. I suppose that's still a WTF but at least it makes sense. Perhaps the error message should explain exactly *why* 28+ is invalid and suggest using -e to work around the problem. -- greg -- To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html