USB external hard drive is not detected

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russell23
Posts: 134
Joined: 2006/10/27 06:27:39
Location: Inside a qubit

USB external hard drive is not detected

Post by russell23 » 2007/10/19 05:31:59

Dear CentOS users,

I am running CentOS-4.4 in my IBM ThinkPad R51. I could able to mount see my external hard drive (USB) in my box. I thought kernel recompilation would help and I did it enabling USB storage options and SCSI options. Even after this my external hard drive is not getting detected. I am attaching my dmesg as a text file. Could any one help me to solve this issue? I already posted a query regarding this issue, but unfortunately didn get any reply. (Administrators kind attention please!!!!!!!)

russell23
Posts: 134
Joined: 2006/10/27 06:27:39
Location: Inside a qubit

Re: USB external hard drive is not detected

Post by russell23 » 2007/10/19 06:36:04

my dmesg results as follows,

> dmesg | grep -i usb

usbcore: registered new driver usbfs
usbcore: registered new driver hub
usbcore: registered new driver usblp
drivers/usb/class/usblp.c: v0.13: USB Printer Device Class driver
Initializing USB Mass Storage driver...
usbcore: registered new driver usb-storage
USB Mass Storage support registered.
usbcore: registered new driver hiddev
usbcore: registered new driver usbhid
drivers/usb/input/hid-core.c: v2.0:USB HID core driver
LID SLPB PCI0 UART PCI1 USB0 USB1 USB2 AC9M
SELinux: initialized (dev usbfs, type usbfs), uses genfs_contexts
SELinux: initialized (dev usbdevfs, type usbdevfs), uses genfs_contexts
ehci_hcd 0000:00:1d.7: new USB bus registered, assigned bus number 1
ehci_hcd 0000:00:1d.7: USB 2.0 enabled, EHCI 1.00, driver 2004-May-10
hub 1-0:1.0: USB hub found
USB Universal Host Controller Interface driver v2.2
uhci_hcd 0000:00:1d.0: new USB bus registered, assigned bus number 2
hub 2-0:1.0: USB hub found
uhci_hcd 0000:00:1d.1: new USB bus registered, assigned bus number 3
hub 3-0:1.0: USB hub found
uhci_hcd 0000:00:1d.2: new USB bus registered, assigned bus number 4
hub 4-0:1.0: USB hub found
usb 1-4: new high speed USB device using address 2
usbcore: registered new driver ub


Any help would be appreciated,

pjwelsh
Posts: 2629
Joined: 2007/01/07 02:18:02
Location: Central IL USA

Re: USB external hard drive is not detected

Post by pjwelsh » 2007/10/19 14:27:58

Typically, you will see "sd" or SCSI Disk class devices from dmesg or /var/log/messages. You could just check with a "fdisk -l" as root to see a new drive.

russell23
Posts: 134
Joined: 2006/10/27 06:27:39
Location: Inside a qubit

Re: USB external hard drive is not detected

Post by russell23 » 2007/10/24 10:16:40

Dear pjwelsh,

Thank you for your kind reply. I did check using "fdisk -l". But it is not showing my external hard disk, it shows only my laptop disk of 40 GB. Could you shed more light on this?

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