Re: Cannot Recognise External Drive (sbp2 problem?)

On 13 Oct, Christopher Mc Carthy wrote:
> I'm having trouble recognising my external firewire drive (Maxtor 40 GB). I
> am using Knoppix 3.3 (the kernel is 2.4.22). I'm not sure what version of
> linux ieee 1397 I'm using [...]
> ohci1394: $Rev: 1010 $ Ben Collins <bcollins@debian.org>
[...]

You use 1394 drivers of Rev. 1010, which is the same revision as
in the original kernel 2.4.22 from kernel.org.

> sbp2: $Rev: 1010 $ Ben Collins <bcollins@debian.org>
> scsi2 : SCSI emulation for IEEE-1394 SBP-2 Devices
> ieee1394: sbp2: Logged into SBP-2 device
> ieee1394: sbp2: Node 0-00:1023: Max speed [S400] - Max payload [2048]

The sbp2 driver recognized the drive and logged in into it.

Now you have to run rescan-scsi-bus.sh to make the scsi driver
aware of the new "scsi" harddisk. (This step was not necessary in
older kernels under certain circumstances, which is why it may
have worked for you without that script in an older Knoppix
version.)

[...]
> Here's the reult of lspci:
> knoppix@ttyp0[knoppix]$ cat /proc/bus/ieee1394/devices
> Node[0-00:1023] GUID[0010b900100001d0]:
> Vendor ID: `Maxtor' [0x0010b9]
> Capabilities: 0x0083c0
> Bus Options:
> IRMC(0) CMC(0) ISC(0) BMC(0) PMC(0) GEN(0)
> LSPD(2) MAX_REC(64) CYC_CLK_ACC(255)
> Unit Directory 0:
> Vendor/Model ID: Maxtor [0010b9] / 1394 Disk Drive [000000]
> Software Specifier ID: 00609e
> Software Version: 010483
> Driver: SBP2 Driver
> Length (in quads): 8

Looks good.

> Node[0-01:1023] GUID[009007010100000f]:
> Vendor ID: `Linux OHCI-1394' [0x000000]
> Capabilities: 0x0083c0
> Bus Options:
> IRMC(1) CMC(1) ISC(1) BMC(0) PMC(0) GEN(0)
> LSPD(2) MAX_REC(2048) CYC_CLK_ACC(0)
> Host Node Status:
> Host Driver : ohci1394
> Nodes connected : 2
> Nodes active : 2
> SelfIDs received: 2
> Irm ID : [0-01:1023]
> BusMgr ID : [0-63:1023]
> In Bus Reset : no
> Root : yes
> Cycle Master : yes
> IRM : yes
> Bus Manager : no

This too.

I really think it is just the missing rescan. (This is mentioned
in the FAQ and the sbp2 documentation at www.linux1394.org BTW.)

[...]
> p.p.s I did try the tool 'gscanbus' (from one of the menus) - can't remember
> exactly the outcome, but didn't solve my problem :(

This is just a little tool that shows nodes on the 1394 bus.

-- 
Stefan Richter
-=====-=--== =-=- -==-=
http://arcgraph.de/sr/
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