On Wed, Dec 10, 2008 at 5:51 PM, Carlos Carrero Gutierrez <mgdpz1@gmail.com> wrote: > Hi, i would like to freeze my linux in order to freeze the OS, then, > when I reboot the computer all changes that i made in the computer > dissapears and it returns to the previous OS freezed. have a look at aufs/unionfs, they are commonly used on live CDs. You don't have to restore anything, so it's very performant.