Distributiebrede wijzigingen

In Fedora, a swap partition is not created by default at installation time. Instead, a zram device is created, and swap enabled on it during start-up. zram is a type of RAM drive that uses compression.

For Fedora 34, the size of this zram device is increased. It is set at the same size as RAM or 8 GB, whichever is smaller. This change allows computers with smaller amounts of RAM to successfully complete installation using the Anaconda installer.

Memory allocation for zram happens dynamically, so the block device’s full size is not allocated as it is created. This dynamic resourse allocation, combined with compression in the zram device that is generally greater than 2:1, ensures that the swap file does not entirely consume available memory.

See man zram-generator for more information about how zram is invoked.

A new fbrnch (Fed Brunch) package provides a utility which helps simplify or semi-automate workflow processes for Fedora Packagers. This package is available to users without them having to add another Copr repository.

The fbrnch utility supports the following and more tasks:

The UEFI for ARMv7 devices feature delivered all the described infrastructure changes in Fedora 30. However, it brought also some problems with upstream kernel, bootloaders and a number of other pieces, which were out of Fedora control.

In this release, the said problematic pieces were fixed. As a result, the user experience is consistent across all Fedora CPU architectures.

With Fedora 34 release, data residing on the master branch in all Fedora git repositories have been moved to a branch named main. This update is in line with Fedora’s vision to be free and open source software built by inclusive, welcoming, and open-minded communities.

Users with existing clones of Fedora repositories need to do git pull to get the changed default branches. Users with existing pull requests against the master branch need to do git rebase against the main branch.

Starting with Fedora 34, the kernel firmware has been compressed with the xz -C crc32 option to reduce the ondisk size by almost a half.

This change simplifies the GRUB configuration file, improves overall user experience, and also provides the following notable benefits:

The systemd-oomd service monitors swap and CGroups on your system using the Linux pressure stall information (PSI) and analyzes wasted productivity due to resource shortages. When the system is running out of memory, systemd-oomd terminates processes under the CGroup that exceeds the configured memory limits.

The systemd-oomd service is now enabled by default on new installations and when upgrading existing installations. It automatically replaces the earlyoom service, which previous Fedora releases used to prevent out-of-memory situations.

For information on configuring systemd-oomd, see the oomd.conf man page.