Home / ubuntu / Questions / 26259
In Process
lepe
Asked: 2011-02-14 23:32:52 +0800 CST

USB recognized but not available?

  • 772

I installed Ubuntu and I'm teaching my mother to use it. Everything is going fine except that her new USB pen drive (8GB - fat32) is not working in Linux (but it works in Windows and Mac).

OS: Kubuntu Lucid kernel: 2.6.32-28-generic

Before and after "lsusb":

root@desktop:/etc# lsusb
Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 001 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub

root@desktop:/etc# lsusb
Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 001 Device 005: ID 3538:0901 Power Quotient International Co., Ltd
Bus 001 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub

dmesg:

[ 1061.544029] usb 3-1: new full speed USB device using uhci_hcd and address 2
[ 1061.709572] usb 3-1: configuration #1 chosen from 1 choice
[ 1061.744920] scsi5 : SCSI emulation for USB Mass Storage devices
[ 1061.752290] usb-storage: device found at 2
[ 1061.752297] usb-storage: waiting for device to settle before scanning
[ 1066.753954] usb-storage: device scan complete
[ 1066.756871] scsi 5:0:0:0: Direct-Access-RBC                   PQ: 2 ANSI: 4
[ 1066.763379] scsi 5:0:0:0: Attached scsi generic sg3 type 14

But in "fdisk -l" it is not shown, and not found under /media/:

root@desktop:/etc# fdisk -l

Disk /dev/sda: 60.0 GB, 60022480896 bytes
255 heads, 63 sectors/track, 7297 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x90789078

   Device Boot      Start         End      Blocks   Id  System
/dev/sda1   *           1        7296    58605088+   7  Linux

What else can be done? any help is appreciated.

usb-drive

2 Answers

  1. Have you ran a kernel update without rebooting? I've had the same problem with similar messages in the dmesg output.

    Rebooting the machine solved the problem for me.

    • 1

  2. Does it show up in gParted?

    Also, can you check if it works using a Live Session CD in the same machine?

    I will wait for this info, and we can work from there...

    EDIT

    Try to install gnome-disk-utility package. It will show up in the menu as Administration -> Disk Utility (palimpsest from terminal). It has some tools that GParted dont. See if the pendrive shows up there.

    Btw.. can you please provide details (edit your question) as how are you accessing your mothers PC? Is it terminal (SSH) or RDP/VNC ? How did you configure it?

    EDIT

    Also, could you please post the result of:

    ls -laR /dev/disk

    It may give us a hint of where the pendrive is after plugged in. /dev/disk/by-id folder is the most important one. It will probably list your USB pendrive, and tell us where it is mapped to.

    • 0