[SOLVED] USB flash drive not recognized

[jimtyler]

Hi,

I'm running Ubuntu 10.04, and am having trouble getting it to recognize my flash drive in the USB port. It showed up once in the Computer - File Browser and I was able to mount it and access the files on it, but since then it doesn't show up. It works fine on my Ubuntu 9.10 distro. I get the same results on both distos when I run #lsusb# The results are:

Bus 001 Device 002: ID 05dc:a701 Lexar Media, Inc. JumpDrive FireFly
Bus 001 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub

Can anyone tell me how to fix things so I can access the flash drive?

Thank you very much. The Forum has been a great help to me.

Jim

[devils casper]

Does fdisk -l command list USB Drive?
Plug-in stick and execute this in Terminal :

tail -s 3 -f /var/log/messages
sudo fdisk -l

Post output here

[jimtyler]

Hi,

Thanks for the reply and the helpful info. This morning the flash drive worked for a while, then a little later, after installing some Movie Player apps, the system quit recognizing it, and now also doesn't recognized the DVD drive. I think when it's not recognizing one, it also won't recognized the other. The last time I booted the system, it wouldn't recognized the USB wifi device. I rebooted again, and then the wifi device wast there. Here's the output from the code you gave me with the flash drive plugged in:

Aug 18 11:46:51 jim-laptop kernel: [  817.828871] Initializing USB Mass Storage driver...
Aug 18 11:46:51 jim-laptop kernel: [  817.829275] scsi2 : SCSI emulation for USB Mass Storage devices
Aug 18 11:46:51 jim-laptop kernel: [  817.829959] usbcore: registered new interface driver usb-storage
Aug 18 11:46:51 jim-laptop kernel: [  817.829974] USB Mass Storage support registered.
Aug 18 11:46:56 jim-laptop kernel: [  822.848907] scsi 2:0:0:0: Direct-Access     LEXAR    JD FIREFLY       1100 PQ: 0 ANSI: 0 CCS
Aug 18 11:46:56 jim-laptop kernel: [  822.859302] sd 2:0:0:0: Attached scsi generic sg2 type 0
Aug 18 11:46:56 jim-laptop kernel: [  822.878517] sd 2:0:0:0: [sdb] 1003520 512-byte logical blocks: (513 MB/490 MiB)
Aug 18 11:46:56 jim-laptop kernel: [  822.882354] sd 2:0:0:0: [sdb] Write Protect is off
Aug 18 11:46:56 jim-laptop kernel: [  822.899101]  sdb: sdb1
Aug 18 11:46:56 jim-laptop kernel: [  822.946345] sd 2:0:0:0: [sdb] Attached SCSI removable disk

Thanks again

Jim

[jimtyler]

I think the problem is solved, at least for now. I installed the first OS update, and so far the system now recognizes the flash drive.