Debian 11 bullseye: небольшой взгляд на установку нового debian

Security Updates

This revision adds the following security updates to the stable release.
The Security Team has already released an advisory for each of these
updates:

Miscellaneous Bugfixes

This stable update adds a few important corrections to the following packages.

Note that, due to build issues, the updates for the cargo, rustc and rustc-bindgen packages are currently not available for the armel architecture.
They may be added at a later date if the issues are resolved.

Step By Step tutorial to Upgrade Debian 10 to Debian 11

1. System Update

The first thing which we need to follow is ensuring that all the pre-installed packages are up to date and if any upgrade is available for them that must be installed. Open your command terminal and run the following command-

sudo apt update && sudo apt upgrade

Also, install-

sudo apt install gcc-8-base

Check System’s current version.

cat /etc/os-release

2. Replace Buster repo with Bullseye

Next, we edit the source list file of Debian 10 and will replace the existing repository addresses with Debian 11  ones:

sudo nano /etc/apt/sources.list

Disable all the existing entries for Buster by adding the # sign in front of each repo link.

#deb http://deb.debian.org/debian/ buster main 
#deb-src http://deb.debian.org/debian/ buster main  

#deb http://security.debian.org/debian-security bullseye/updates  main  
#deb-src http://security.debian.org/debian-security bullseye/updates main

Now, at the end of the file, copy-paste the following URLs list.

deb http://deb.debian.org/debian/ bullseye main contrib non-free
deb-src http://deb.debian.org/debian/ bullseye-updates main contrib non-free

deb http://security.debian.org/debian-security bullseye-security main
deb-src http://security.debian.org/debian-security bullseye-security main
deb http://ftp.debian.org/debian bullseye-backports main contrib non-free

Save the file by pressing Crtl+X, Y, and hit the Enter key.

3. Run system update command:

To let the system recognize the newly added Repo URLs, run the system update command-

sudo apt update

If you don’t get any error after updating, then you can move further.

4. Command to full upgrade Debian 10 to 11 Linux

Finally, run the system full system upgrade command that will upgrade all the existing packages to transit your old  Debian Buster system to the latest LTS Bullseye.

sudo apt full-upgrade

Follow the intermittent text wizards to set default things, when the system starts processing upgrades.

Give the system permission to download and install the required packages. Note: Make sure the system screen wouldn’t get locked while the upgrading process.

Once the Debian 10 upgrading process is completed, reboot your system.

sudo reboot

6. Check the new system version

Now, let’s check which version we have on our system now, for that run-

cat /etc/os-release

You will see the output:

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Security Updates

This revision adds the following security updates to the stable release.
The Security Team has already released an advisory for each of these
updates:

Miscellaneous Bugfixes

This stable update adds a few important corrections to the following packages: