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problem getting USB HDD to work

Hi all,

recently I installed Slackware 10.1 on one of our servers, now I want to
backup it's data to an external USB HDD (Western Digitial w/ 250 GB).

I included USB and usb-storage support into kernel, started hotplug, and
get this messages in /var/log/debug

Code:

Apr 25 14:09:55 server kernel: usb-storage: act_altsettting is 0 

Apr 25 14:09:55 server kernel: usb-storage: id_index calculated to be: 120 

Apr 25 14:09:55 server kernel: usb-storage: Array length appears to be: 122 

Apr 25 14:09:55 server kernel: usb-storage: USB Mass Storage device detected 

Apr 25 14:09:55 server kernel: usb-storage: Endpoints: In: 0xd4c09494 Out: 0xd4c09480 Int: 0x00000000 (Period 0) 

Apr 25 14:09:55 server kernel: usb-storage: New GUID 105804023733343435313139 

Apr 25 14:09:55 server kernel: usb-storage: GetMaxLUN command result is 1, data is 0 

Apr 25 14:09:55 server kernel: usb-storage: Transport: Bulk 

Apr 25 14:09:55 server kernel: usb-storage: Protocol: Transparent SCSI 

Apr 25 14:09:55 server kernel: usb-storage: *** thread sleeping. 

Apr 25 14:09:55 server kernel: usb-storage: queuecommand() called 

Apr 25 14:09:55 server kernel: usb-storage: *** thread awakened. 

Apr 25 14:09:55 server kernel: usb-storage: Command INQUIRY (6 bytes) 

Apr 25 14:09:55 server kernel: usb-storage: 12 00 00 00 ff 00 e2 d4 b1 83 1c c0 

Apr 25 14:09:55 server kernel: usb-storage: Bulk command S 0x43425355 T 0x1 Trg 0 LUN 0 L 255 F 128 CL 6 

Apr 25 14:09:55 server kernel: usb-storage: Bulk command transfer result=0 

Apr 25 14:09:55 server kernel: usb-storage: usb_stor_transfer_partial(): xfer 255 bytes 

Apr 25 14:09:55 server kernel: usb-storage: usb_stor_bulk_msg() returned -75 xferred 128/255 

Apr 25 14:09:55 server kernel: usb-storage: usb_stor_transfer_partial(): unknown error 

Apr 25 14:09:55 server kernel: usb-storage: Bulk data transfer result 0x2 

Apr 25 14:09:55 server kernel: usb-storage: Attempting to get CSW... 

Apr 25 14:10:01 server kernel: usb-storage: command_abort() called

Seems there is an error, I can't access the drive. I use Kernel 2.4.29
from Slackware CD-ROM.

Any ideas on this?
TIA and greetings, Matthias

Did you enable SCSI support? You need this for USB drives

Yeah I enabled it, because I am using a 3ware SATA RAID1 controller, which needs
SCSI as well. I access this RAID1 via /dev/sda ...

update: after attaching my USB drive to a windows machine and re-attaching it to
the Linux server afterwards, I get other messages now from syslog:

Code:

Apr 25 15:24:40 server kernel: WARNING: USB Mass Storage data integrity not assured

Apr 25 15:24:40 server kernel: USB Mass Storage device found at 2

Apr 25 15:24:40 server kernel: usb-storage: storage_disconnect() called

Apr 25 15:24:40 server kernel: usb-storage: -- releasing main URB

Apr 25 15:24:40 server kernel: usb-storage: -- usb_unlink_urb() returned -19

Apr 25 15:32:19 server kernel: usb-storage: act_altsettting is 0

Apr 25 15:32:19 server kernel: usb-storage: id_index calculated to be: 120

Apr 25 15:32:19 server kernel: usb-storage: Array length appears to be: 122

Apr 25 15:32:19 server kernel: usb-storage: USB Mass Storage device detected

Apr 25 15:32:19 server kernel: usb-storage: Endpoints: In: 0xd4c09494 Out: 0xd4c09480 Int: 0x00000000 (Period 0)

Apr 25 15:32:19 server kernel: usb-storage: Found existing GUID 105804023733343435313139

Apr 25 15:32:19 server kernel: WARNING: USB Mass Storage data integrity not assured

Apr 25 15:32:19 server kernel: USB Mass Storage device found at 2

And now I can see my drive under /proc/scsi/usb-storage-0/1 as well:

Code:

  Host scsi1: usb-storage

      Vendor: Western Digital

      Product: External HDD

Serial Number: 5743414C3733343435313139

    Protocol: Transparent SCSI

    Transport: Bulk

        GUID: 105804023733343435313139

    Attached: Yes

But I sill can't mount the drive.
Any ideas? Greetings, Matthias

How are you trying to mount the drive?

I was looking for a new /dev/sdb device or something similar, but it seems there is
none. Shouldn't dmesg give a output like "Attached scsi removable disk sdb ..."?

I try to mount the HDD via:

Code:

root@server:/dev# mount /dev/hdb /mnt -t vfat

mount: /dev/hdb is not a valid block device

The same goes for /dev/hdb1
vfat is included in my kernel

Any ideas?
Greetings and TIA, Matthias

info: the disk does not show up in my scsi device listing, only my
RAID1 on 3ware controller.

Code:

root@server:/dev# cat /proc/scsi/scsi

Attached devices:

Host: scsi0 Channel: 00 Id: 00 Lun: 00

  Vendor: 3ware    Model: Logical Disk 0  Rev: 1.0

  Type:  Direct-Access                    ANSI SCSI revision: ffffffff

Okay, is it found by "lsusb" as well?

Do you have a dynamic /dev manager (such as udev) that will create /dev entries for you? If so, does it have rules for USB hard drives? If not, you may have to create them manually.

Code:

root@server:~# lsusb

Bus 005 Device 001: ID 0000:0000

Bus 004 Device 001: ID 0000:0000

Bus 003 Device 001: ID 0000:0000

Bus 002 Device 001: ID 0000:0000

Bus 001 Device 001: ID 0000:0000

Bus 001 Device 003: ID 1058:0402 Western Digital Technologies, Inc.

slackware 10.1 uses udev, and it seems to be configured for USB devices:

Code:

# USB devices

KERNEL="hiddev*",      NAME="usb/%k"

KERNEL="auer*",        NAME="usb/%k"

KERNEL="legousbtower*", NAME="usb/%k"

KERNEL="dabusb*",      NAME="usb/%k"

BUS="usb", KERNEL="lp[0-9]*",  NAME="usb/%k"