Is There Already a Safe Upgrade Guide from Debian 12 to Debian 13?

Discussion in 'Installation/Configuration' started by Marcio Urakawa, May 8, 2026 at 2:57 PM.

  1. Has anyone already tested a reliable and secure migration process from Debian 12 (Bookworm) to Debian 13 (Trixie)?
     
    Last edited: May 8, 2026 at 3:12 PM
  2. After upgrading a server with ISPConfig from Debian 12 (Bookworm) to Debian 13 (Trixie), Apache failed to start with this error:

    Cannot load /usr/lib/apache2/modules/mod_python.so
    The issue was caused by an old mod_python configuration left enabled after the upgrade, even though the module is no longer available/supported.
    No websites or ISPConfig services were using mod_python.
    Fix:

    sudo a2dismod python
    sudo apachectl configtest
    sudo systemctl restart apache2

    After disabling the obsolete module, Apache and ISPConfig worked normally again.
     
    Taleman and till like this.

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