We have some LaCie 1 TB external disks which work fine on other Linux servers (running Red Hat 9, and Ubuntu 7.04), but which fail to be seen on our CentOS 4.3 system with kernel 2.6.9-34.107.plus.c4smp

The interface card is a Sunix 64 bit Firewire 800 ieee1394b adapter plugged into a PCI slot in our Linux server, which is a Tyan Thunder K8SD Pro S2882-D, 64 bit AMD Opteron CPU

Using "cat" to examine the "/proc/scsi/scsi" information shows our system hard disk and internal RAID array:

cat /proc/scsi/scsi ------------------- Attached devices: Host: scsi0 Channel: 00 Id: 00 Lun: 00 Vendor: ATA Model: WDC WD360GD-00FL Rev: 33.0 Type: Direct-Access ANSI SCSI revision: 05 Host: scsi4 Channel: 00 Id: 00 Lun: 00 Vendor: AMCC Model: 9550SX-8LP DISK Rev: 3.01 Type: Direct-Access ANSI SCSI revision: 03

I have found various items in the centos list archives, but none of these has provided a definitive solution; I have used commands such as "lspci", and "lsmod" to ensure that the system sees the firewire card, and has iee1394 and other modules loaded:

lspci | grep 1394 ----------------- 01:03.0 Firewire (IEEE 1394): Texas Instruments TSB82AA2 \ IEEE-1394b Link Layer Controller (rev 01)

lsmod | egrep '1394|sbp2|s.*_mod' --------------------------------- sbp2 26825 0 ohci1394 36953 0 ieee1394 124601 2 sbp2,ohci1394 sd_mod 19393 7 scsi_mod 140561 4 sbp2,3w_9xxx,libata,sd_mod

Somewhere I found a note about trying the "serialize_io=1" option with the "sbp2" module, and now have tried that, but still have no joy:

dmesg | grep sbp ---------------- sbp2: $Rev: 1219 $ Ben Collins bcollins@debian.org sbp2: $Rev: 1219 $ Ben Collins bcollins@debian.org ieee1394: sbp2: Driver forced to serialize I/O (serialize_io = 1)

The "1394" messages in "dmesg" are:

dmesg | grep 1394 ----------------- ieee1394: Initialized config rom entry `ip1394' ohci1394: $Rev: 1223 $ Ben Collins bcollins@debian.org ohci1394: fw-host0: OHCI-1394 1.1 (PCI): IRQ=[209] \ MMIO=[fc7fe800-fc7fefff] Max Packet=[4096] ieee1394: Host added: ID:BUS[0-00:1023] GUID[080028560000470a] ieee1394: Error parsing configrom for node 0-01:1023 ieee1394: The root node is not cycle master capable; \ selecting a new root node and resetting... ieee1394: Error parsing configrom for node 0-00:1023 ieee1394: Node changed: 0-00:1023 -> 0-01:1023 ieee1394: Error parsing configrom for node 0-00:1023 ieee1394: Node changed: 0-01:1023 -> 0-00:1023 ieee1394: Error parsing configrom for node 0-01:1023 ieee1394: The root node is not cycle master capable; \ selecting a new root node and resetting... ieee1394: Error parsing configrom for node 0-00:1023 ieee1394: Error parsing configrom for node 0-01:1023 ieee1394: The root node is not cycle master capable; \ selecting a new root node and resetting... ieee1394: Error parsing configrom for node 0-00:1023 ieee1394: Node changed: 0-00:1023 -> 0-01:1023 ieee1394: Error parsing configrom for node 0-00:1023 ieee1394: sbp2: Driver forced to serialize I/O (serialize_io = 1)

If anyone can suggest how I might proceed to get our LaCie disks to run on the Firewire card under CentOS 4.3, I shall be delighted to see what I need to do, thanks

Best regards,

Lawson Hanson ------ Climate Change Group Centre for Australian Weather and Climate Research