Dans ce cas ouvre "gedit" éditeur de texte, et copie/coller de cela, enregistre le dans
/etc/yum.repo.d sous le nom fedora-devel.repo
[development]
# These packages are untested and still under development. This
# repository is used for updates to test releases, and for
# development of new releases.
#
# This repository can see significant daily turn over and can see major
# functionality changes which cause unexpected problems with other
# development packages. Please use these packages if you want to work
# with the Fedora developers by testing these new development packages.
#
#
fedora-test-list@redhat.com is available as a discussion forum for
# testing and troubleshooting for development packages in conjunction
# with new test releases.
#
#
fedora-devel-list@redhat.com is available as a discussion forum for
# testing and troubleshooting for development packages in conjunction
# with developing new releases.
#
# Reportable issues should be filed at bugzilla.redhat.com
# Product: Fedora Core
# Version: devel
name=Fedora Core $releasever - Development Tree
#baseurl=
http://download.fedora.redhat.com/pub/fedora/linux/core/development/$basearch/
mirrorlist=
http://fedora.redhat.com/download/mirrors/fedora-core-rawhide
enabled=0
gpgcheck=0