On Thu, Apr 20, 2006 at 08:21:23PM +0800, Deephay wrote: > I just want to know that how harmful it will be if I run testing on > the server. As others have said, it's advisable to use Stable if you're unsure. If you find some package from Testing (or Unstable) that you absolutely must have, you might look into setting up a chroot environment or checking for backported packages before trying to move completely to Testing.