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Mise à niveau du système actuel

This chapter explains how to upgrade your existing Fedora installation to the current release. There are two basic ways to do so:

Mise à niveau automatique à l’aide de [application] dnf system upgrade

The preferred way to upgrade your system is an automatic upgrade using the dnf system upgrade utility. For information on performing an automatic upgrade, see Fedora Wiki DNF system upgrade.

Réinstallation manuelle

Instead of relying on dnf system upgrade, you can reinstall the latest version of Fedora. This involves booting the installer as if you were performing a clean installation, letting it detect your existing Fedora system, and overwriting the root partition while preserving data on other partitions and volumes. The same process can also be used to reinstall the system, if you need to do so for any reason. For detailed information, see Manual System Upgrade or Reinstallation.

Sauvegardez toujours vos données avant de procéder à une mise à niveau ou à une réinstallation de votre système, peu importe la méthode que vous choisissez.

Mise à niveau manuelle du système ou réinstallation

Unfortunately, we have not written this chapter yet, and there is no dedicated documentation about a manual reinstall on the Wiki, either. In the meantime before we fix this, you can try to start the installation normally (from a boot CD/DVD/USB), select manual partitioning in your installer, and reuse existing partitions instead of destroying them and creating new ones. The instructions at Manual Partitioning should in most cases be easy to adapt for this.