Here we will see how to upgrade a LibraZiK-4 audio studio to a LibraZiK-5 audio studio.

Launch the Synaptic software and go to synaptic menu→ Configuration → Repositories.

Replace here:

• the “bullseye” by “bookworm”
• the “barbeapapas” with “pasdawan”
• the “BAP” with “PDW”

And add the “non-free-firmware” repository component to each of the lines. This is a new “component” of the repositories that contains non-free device driver firmware. This repository is intended to facilitate the installation of Debian on certain hardware without allowing all types of non-free software.

In the end, you should have these repositories:

Then click on the “Accept” button, then on the “Reload” button in the main Synaptic window. Synaptic will then update the repository indexes. This may take a few minutes.

Then click on the “All Upgrade” button of Synaptic, then on the “Add to Selection” button.

Finally, click on the “Apply” button.

Now click on “Apply”.

During the update, you may be asked several things.

A summary of important changes will be presented to you. You can read them if you are curious. In any case, you will have to click on the “Close” button to continue the update process.

The installation of the libc6 package will ask you whether to restart the services automatically.

If you don't know how to choose here, check the box for the question: Restart services during package upgrades without asking? then click on the “Next” button.

The installation of the grub-pc package will ask you what you want to do.

If you are unsure which option to choose, select Keep the currently installed version and click on the “Next” button.

Synaptic may inform you that some packages have not been installed correctly.

In this case, start by restarting your machine.

Here, if your machine restarts on a black screen, restart again and when the GRUB screen appears, press the E key and use the arrows on your alphanumeric keyboard to navigate to the initrd line, then add nomodeset to the end of the line. This will disable the advanced features of the Intel graphics card and start up on a basic graphics driver.

In command line, you can complete the installation and configuration of incorrectly installed packages by repeating what did not work before with the command: ‘'su -c “apt full-upgrade”’'.

Then launch Synaptic and “Reload”.

At this point, Synaptic may warn you that there is a problem in the repositories:

This message will reappear each time if we do not resolve the issue now, so let's do this once and for all.

What is happening here is that some of the repository addresses from the old LibraZiK-4 are still listed. As a reminder, these repositories addresses are (in short) internet addresses where Synaptic will look for lists of installable software.

To fix this, you can delete the following files: /etc/apt/sources.list.d/LZK-BAP-users.list and /etc/apt/sources.list.d/LZK-BAP-users-fr.list. CAUTION: ONLY delete files with BAP¹⁾ in their names, not those with PDW²⁾.

To remove them, you can use one of the following commands (depending on how you installed your system, you will use “su” or “sudo” to switch to the administrator account):

  su -c 'rm /etc/apt/sources.list.d/LZK-BAP-*'

or

  sudo rm /etc/apt/sources.list.d/LZK-BAP-*

Once again, click “Reload” in Synaptic. The above message will no longer appear.

Check that the meta-packages librazik-menu, librazik-base-all, librazik-mate-all, librazik-optimisations-all, and librazik-theme-all are properly installed. If not, install them.

There will probably be a problem with LMMS here. If so, remove the lmms-common and lmms-vst packages and try again.

Now install a low-latency (LL) kernel dedicated to computer-assisted music.

Restart your machine to apply the new kernel: LibraZiK menu → System → Shut Down… then select “Restart”.

Manually delete the file “~/.config/qt5ct/qt5ct.conf”. The system will recreate a clean (and compliant!) file the next time it starts up. Please note that this must be done for each user account.

Once the machine is restarted, you will see that the graphic theme is not completely restored. To do this:

• go to: LZK menu → System → Preferences → Appearance → Appearance
• search and choose the “LibraZiK-5” theme
• click on the button: “Apply background”
• close the Appearance Preferences window

To finish installing your LibraZiK-5 audio studio, you will want to add some configurations to your system.