Upgrading Debian Etch to Debian Lenny

Ensure your Etch installation is up to date (aptitude update; aptitude dist-upgrade). Edit your /etc/apt/sources.list and change all non-local mentions of "etch" or "stable" to "lenny". aptitude update; aptitude install aptitude; aptitude safe-upgrade; aptitude full-upgrade.

warning: SASL authentication failure: cannot connect to saslauthd server: Permission denied

The solution to this problem is as follows:



adduser postfix sasl