In this tutorial I will show you how to upgrade your Debian 6.0.6 Squeeze to Debian 7.0 wheezy.

Step1. Update your /etc/apt/sources.list  file:

We needed to replace all sources from sources.list file with Wheeze sources.

echo "deb wheezy main
deb-src wheezy main
deb wheezy/updates main
deb-src wheezy/updates main" > /etc/apt/sources.list

Step2. Now upgrade your system

 apt-get update && apt-get upgrade

This will take a while. Continue Reading…

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