Operating System - Linux의 주제 Re: USB is not working while using mass storage.

USB is not working while using mass storage.

Jestin John Chacko — Fri, 20 Nov 2009 09:12:33 GMT

IN MY P.C I HAD INSTALLED BOTH WIN XP AND LINUX BUT THE PROBLEM IS THAT WHENEVER I USE LINUX(RHEL -5.1)
MY USB MASS STORAGE IS NOT DETECTING BUT ON THE SAME PORT ITSELF MY USB MOUSE IS WORKING FINE.AND WHENEVER I USE (MASS STORAGE ON THE SAMEPORT)IT WITH WINDOWS ALSO ITS SENSING THE DRIVE .
WHAT I SHOULD DO TO SOLVE THIS PROBLEM...PLEASE HELP.

I HAD RESTARTED THE MACHINE TWICE...

Re: USB is not working while using mass storage.

smatador — Fri, 20 Nov 2009 13:17:57 GMT

Hi,
You could perhaps test to mount it manually
http://www.di.unito.it/~rover/LOCAL-HOWTOS/picodisk-on-linux.html
You could check if your usb drive/key have a driver usb to install on your linux release.
HtH

Re: USB is not working while using mass storage.

Matti_Kurkela — Fri, 20 Nov 2009 19:52:26 GMT

Many manufacturers implement the USB storage device specification incompletely, implementing only the minimum required to work with MS-Windows. In these cases, the Linux USB storage driver may have to apply device-specific workarounds, called "quirks".

The list of USB storage quirks is long and continuously growing. You should upgrade your RHEL kernel to the latest available version, so that you get the most up-to-date version of the quirks definitions.

Also use the "dmesg" command both before and after plugging in the device. The "dmesg" command displays the kernel message buffer: it contains all diagnostic messages produced by the kernel.

When you plug in a USB storage device, at least a few new messages should appear in the dmesg listing. Please find those messages and copy them to this thread: they might offer critical information about what is going wrong with your device.

MK