Dopisanie repozytorium non-free do pliku /etc/apt/sources.list, który ma wyglądać tak:

<file>
deb http://ftp.pl.debian.org/debian/ squeeze main non-free
deb-src http://ftp.pl.debian.org/debian/ squeeze main non-free

deb http://security.debian.org/ squeeze/updates main non-free
deb-src http://security.debian.org/ squeeze/updates main non-free

# squeeze-updates, previously known as 'volatile'
deb http://ftp.pl.debian.org/debian/ squeeze-updates main non-free
deb-src http://ftp.pl.debian.org/debian/ squeeze-updates main non-free
</file>

Lub możemy to zmienić za pomocą polecenia:

<file>
cat /etc/apt/sources.list | sed "s/main/main non-free/g" > /etc/apt/sources.list.bak
mv /etc/apt/sources.list.bak /etc/apt/sources.list
</file>

Instalacja podstawowych pakietów:

<file>
apt update
apt install bzip2 unzip p7zip-full mc subversion subversion-tools telnet tcpdump ntpdate git rsync net-tools aptitude
</file>

NTPDate

<file>
echo "2 * * * * root ntpdate -u pool.ntp.org > /dev/null" >> /etc/crontab
/etc/init.d/crond reload
</file>