On Thu, 18 Feb 2010 18:21:45 +1300 martin f krafft <madduck@xxxxxxxxxxx> wrote: > also sprach Neil Brown <neilb@xxxxxxx> [2010.02.18.1810 +1300]: > > You would put it in /etc/mdadm.conf > > The format would be something like: > > > > ARRAY /dev/md/root uuid=xxxx:xxxx:xxxx:xxxx > > > > and any array found with that uuid would be assembled as /dev/md/root > > No, we mean using the UUID of the root filesystem (vol_id, not > mdadm's UUID) as the homehost identifier, instead of the hostname. > You can set homehost to anything you like, in mdadm.conf or on the command line.. But it would be rather awkward to store the uuid of the root filesystem in the metadata for the array that stores the root filesystem (and so is created before the root filesystem)... Are you suggesting that when mdadm finds some bits that looks like the form an array it should test-assemble it, look inside for a filesystem, extra the uuid of that filesystem and compare against some known uuid before deciding whether to assemble that array or not? I hope not. So I don't think I know what is really being proposed. ?? NeilBrown -- 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
