Debian version 5.0 has been released. It is recommended that you upgrade the system to latest version. Upgrading remote Debian server is a piece of cake. In this tutorial, you will learn about upgrading Debian Linux server from Etch to Lenny over ssh session.
Step # 1: Make a Backup
Upgrading system is a complex procedure. I strongly recommend backing up all data and configuration files. The upgrade process is quite reliable, but a hardware failure in the middle of an upgrade could result in a severely damaged system, so make a full system backup.
Step # 2: Apply all etch updates
rest here