How to Disable and Enable USB Device in Linux

Follow the steps

1) Add this line “blacklist usb_storage” to the end of /etc/modprobe.d/blacklist.conf
To add : Open a Terminal by using Ctrl+Alt+T or Applications->Accessories->Terminal. You need to have root access to do this tweak. Copy and paste the following command in the Terminal. Type the password for the user, when prompted.

$ sudo gedit /etc/modprobe.d/blacklist.conf

The above command will open the blacklist.conf file in gedit. You can use any editor to edit this file like vim, gvim, emacs etc., Now copy and paste this line “blacklist usb_storage” at the end of the file. After adding this save it and close the gedit. Check the below screen shot.

2) Add this line “modprobe -r usb_storage” before exit 0 in /etc/rc.local
To add : Copy and paste the following command in the Terminal. Type the password for the user, if prompted.

 $ sudo gedit /etc/rc.local

The above command will open the rc.local file in gedit. Now copy and paste this line “modprobe -r usb_storage” before the last line of the file. After adding this save it and close the gedit. Check the below screen shot for Fedora and Ubuntu.

For Ubunntu:

For Fedora:

Now restart your system.

To Mount USB device
Open a Terminal and use the following command. Type the password for the user, when prompted.

$ sudo modprobe usb_storage

To Unmount the USB device

Use “safely remove drive” by right click on the device, then run the below command in the Terminal. Type the password for the user, when prompted.

$ sudo rmmod usb_storage

Hope this will be helpful for you!!

 

Make Backspace Key Work Correctly in Firefox on Linux

 

Type about:config into the address bar :

then 

filter by the following key:

 browser.backspace_action

Double-click on the item in the list and change the value to 0.



The change should be immediate – you can hit the backspace key to go right back to whatever you were doing (probably reading this)
This tip should work on any platform… I’m not sure if all versions of Linux have the same annoyance, but at least Ubuntu does.