04-22-2009
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?
Last edited by ulemsee; 04-22-2009 at 04:59 AM..
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LEARN ABOUT CENTOS
usb-devices
usb-devices(1) Linux USB Utilities usb-devices(1)
NAME
usb-devices - print USB device details
SYNOPSIS
usb-devices
DESCRIPTION
usb-devices is a (bash) shell script that can be used to display details of USB buses in the system and the devices connected to them.
The output of the script is similar to the usb/devices file available either under /proc/bus (if usbfs is mounted), or under /sys/ker-
nel/debug (if debugfs is mounted there). The script is primarily intended to be used if the file is not available.
In contrast to the usb/devices file, this script only lists active interfaces (those marked with a "*" in the usb/devices file) and their
endpoints.
Be advised that there can be differences in the way information is sorted, as well as in the format of the output.
RETURN VALUE
If sysfs is not mounted, a non-zero exit code is returned.
FILES
/sys/bus/usb/devices/usb*
The part of the sysfs tree the script walks through to assemble the printed information.
/proc/bus/usb/devices
Location where the usb/devices file can normally be found for Linux kernels before 2.6.31, if usbfs is mounted.
/sys/kernel/debug/usb/devices
Location where the usb/devices file can normally be found for Linux kernel 2.6.31 and later, if debugfs is mounted.
SEE ALSO
lsusb(8), usbview(8).
AUTHORS
Greg Kroah-Hartman <greg@kroah.com>
Randy Dunlap <rdunlap@xenotime.net>
Frans Pop <elendil@planet.nl>
usbutils-007 23 June 2009 usb-devices(1)