How to upgrade from Debian 10 to Debian 11

Whats new in Debian 11?

-> https://www.debian.org/releases/bullseye/amd64/release-notes/ch-whats-new.en.html

For the security reasons please backup before procedding with upgrade.

Make sure You have upgraded your debian distribution to the latest old-stable release. Run following commands from the console:

sudo apt-get update

sudo apt-get upgrade

If you are up-to-date with Debian 10 distribution you can proced to the next chapter:

Upgrade to Debian 11:

First edit with your favorite editor the /etc/apt/sources.list file. You can change the file also with sed command:

sed -i 's/buster\/updates/bullseye-security/g;s/buster/bullseye/g' /etc/apt/sources.list

After that you are able to upgrade to the Debian 11 system by running following commands:

apt-get update

apt-get upgrade

apt-get dist-upgrade

Next we must reboot into new system 🙂

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