Configure Grub2

In terminal:

gksu gedit /etc/default/grub
sudo update-grub

More info here: https://wiki.ubuntu.com/Grub2

Slow USB transfer rate

I was getting super low speed while transferring files to an usb drive. Updating the kernel solved this problem for me.

Go to http://kernel.ubuntu.com/~kernel-ppa/mainline  and choose a recent linux-image file. Download and install.

That's it.