System Utilities

Since the beginning, /etc/sysconfig/nfs has been used to configure NFS server daemons by specifying extra command-line arguments with which the daemon executable should be invoked. This mechanism has been replaced by the configuration file /etc/nfs.conf. Each of the services that compose the NFS server stack reads this file on its own and uses the relevant parts, and /etc/sysconfig/nfs is not read anymore.

On upgrades, automatic conversion from /etc/sysconfig/nfs to /etc/nfs.conf is performed by the nfs-convert.service systemd service.

In Fedora 30, DNF package repository metadata is compressed using the zchunk format in addition to xz and gzip formats used previously.

zchunk is a new compression format designed to allow for highly efficient deltas. When Fedora’s metadata is compressed using zchunk, DNF will download only the differences between any earlier copies of the metadata and the current version. DNF and related tools will see significant reductions in the size of the metadata they download, especially if they are run on a regular basis.

For more information about zchunk, see the following articles by the change owner: