External USB disk cannot be mounted

Hi,
I am running Suse on a fujitsu server. The problem is that it will no fully load the usb external disk. When plugged in, dmesg shows that indeed a usb disk has been plugged in ,but gives no devpath e.g sda,sdb.

lsusb shows the disk vendor (western digital) but nothing else.Whats goin on here?

dmesg output:
usb 5-2: new high speed USB device using address 2
usb 5-2: Product: External HDD
usb 5-2: Manufacturer: Western Digital
usb 5-2: SerialNumber: 575845583037473735303832
usb 5-2: USB disconnect, address 2
usb 5-1: new high speed USB device using address 3
usb 5-1: Product: External HDD
usb 5-1: Manufacturer: Western Digital
usb 5-1: SerialNumber: 575845583037473735303832

You can see there is no no sdX

Using:
ls /dev/ | wc -l

before and after plugging in the disk,there is no change in number of device.

Anyone?

This means that your device has not been mounted for some reason. See if you can mount it manually in the terminal. The mount points sda and sdb that you mentioned may have gotten lost somehow. It is also worthwhile checking whether your device still works on other machines, just to be sure it is not the device that is faulty.

the way i check if usb is there is with following commands as root

list devices

fdisk -l

see if mounted

mount

print your output