Most Linux distributions are available on a live CD, which allows a system to boot directly from CD without installing it on his computer. However, the live CD take ages, Removable media such as keys offer speeds much faster and less fragile.

This tip explains how to create a USB key itself as a Live CD, "Live USB" in a way.

Equipment and tools
  • Download the software UNetBootin (free): http://lubi.sourceforge.net/unetbootin.html
  • A system compatible with the software: Windows XP, 2000 or Vista
  • A USB flash drive or other removable media, with a capacity sufficient to accommodate the distribution of your choice.
  • A computer that can boot from USB devices.


Installing Linux
  • Download the ISO image on the version of Linux you want to install on the USB key From here. In this example, the distribution used is the latest version of Ubuntu.
  • Open the utility UNetbootin and go to the second option "disk image" and select the ISO. Once selected, point the ISO file that you downloaded.
  • Make sure the selected drive letter corresponds to the support must be installed or distribution.
  • Once all these settings, click OK to start copying files.After copying the files (including between 5 or 8 minutes), you must restart your PC.


Restarting
Now restart your computer and boot from your USB drive (via BIOS). The result is the same as if you had a Live CD, but the system is much faster.