Unable to access firewire hard drive

[Peter C. <ch...@at...>]

System: Slackware64-13.37
Kernel: 3.2.2
Libraw1394 2.0.7

# lspci | grep FireWire
01:06.0 FireWire (IEEE 1394): Agere Systems FW322/323 (rev 04)

# lsmod | grep firewire
firewire_sbp2          10977  0 
firewire_ohci          26284  0 
firewire_core          41461  2 firewire_sbp2,firewire_ohci
crc_itu_t               1185  2 udf,firewire_core


#dmesg
firewire_core: created device fw1: GUID 0050770e00071002, S400, 3 config ROM 
retries
firewire_core: phy config: card 0, new root=ffc0, gap_count=5
scsi5 : SBP-2 IEEE-1394
firewire_sbp2: Workarounds for fw1.0: 0x20 (firmware_revision 0x012804, model_id 
0x000001)
firewire_sbp2: fw1.0: logged in to LUN 0000 (0 retries)
scsi 5:0:0:0: Direct-Access-RBC ST316002 2ACE                  PQ: 0 ANSI: 4
sd 5:0:0:0: Attached scsi generic sg4 type 14
sd 5:0:0:0: [sdd] 312558593 512-byte logical blocks: (160 GB/149 GiB)
sd 5:0:0:0: [sdd] Write Protect is off
sd 5:0:0:0: [sdd] Mode Sense: 11 00 00 00
sd 5:0:0:0: [sdd] Write cache: enabled, read cache: enabled, doesn't support 
DPO or FUA
 sdd: sdd1
sd 5:0:0:0: [sdd] Attached SCSI disk

The device is a hard drive caddy with both USB and FireWire ports, and 
contains an NTFS formatted drive.

Under Windoze, the drive functions perfectly as either USB or FireWire (ie 
this is not a hardware fault!)

Under Slackware, when connected as USB, the drive is immediately recognised, 
and a prompt appears on the desktop asking if I want to mount it. If I accept, 
it is mounted as /media/Video (the partition label).

If I connect it as Firewire, although the kernel appears to recognise it (see 
demsg above), no prompt to mount it appears. Attempting to mount it manually 
creates an eror message saying it can't identify the filing system. Specifying 
ntfs-3g produces a "wrong super-block" error.

Examining the disk with GParted indicates that the disk contains only 
"unallocated" space, when attached via FireWire!

In other words, although the disk works fine under Windows, and under Linux as 
USB, it doesn't work under FireWire, as the system is unable to identify the 
partition, although it knows it exists!

I haven't used this caddy for a while, but it used to work perfectly under the 
old FireWire stack. (I was unaware that there was a new stack until I started 
trying to debug this problem!)

I am not a programmer, though I would claim to be "computer literate". This 
may be an error on my part, but if so it is not obvious to me. Googling for 
solutions to this issue has produced a number of hits for Ubuntu users with 
the same problem, but no apparent solution!

Is anyone here able to offer advice or enlightenment, please?

Cheers,

-- 
Pete
ch...@at...