Changes in Fedora 43 For System Administrators

Fedora 42 has introduced a new, redesigned graphical installer interface using a new, browser-based WebUI, which was available on Fedora Workstation. In Fedora 43, the same installer is now also used on Fedora KDE Edition, as well as some of the Spins.

Starting with Fedora 43, the installer no longer supports installing Fedora on disks using a Master Boot Record (MBR) while in UEFI boot mode on 32-bit x86 systems. Instead, the installer will enforce the use of a GUID Partition Table (GPT), which is a significantly more modern standard, and was already the default previously on some hardware configurations. Existing 32-bit UEFI systems with MBR-partitioned disks can be upgraded like normal, only new installations are affected.

Fedora as a whole has switched to DNF5 in the 41 release for general package management and image building. Starting with Fedora 43, Anaconda is now also using DNF5 on the backend. The change should not be visible to most users.

Since the Fedora Modularity project has been deprecated, supports for package modularity has now also been removed from Anaconda. This change is related to the switch to DNF5, as DNF5 no longer supports modularity either, so this allows Anaconda to be upgraded to DNF5.

Fedora Linux 43 has raised the size of the default /boot partition to 2 GiB. This is to accommodate increases in boot data over the past several releases and to maintain a usable experience. Users of older releases may be advised to consider reinstalling instead of upgrading to increase the /boot partition size.