On Tuesday August 5, davidchow@shaolinmicro.com wrote: > The point is my root is on md2 . I can never reassemble the RAID > devices. This is just the same of using a --force with mkraid of mdadm > with reassemble . There seems no other way to update buggy superblocks > online or even do something with reboot? Can I just modify the field and > reset the machine after a "sync"? You could try, but I wouldn't recommend it. You could upgrade to 2.6 which it probably get it right, but as it is still -testing, you might not want to. Best solution is to boot a rescue disk and do it from there. Sorry I cannot be more helpful. NeilBrown - To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html