As you may surmise from several of my recent posts, I have been doing a ton of Linux virtualization (Xen, KVM, openvz) testing. In the case of KVM, numerous bug fixes are integrated into each kernel release, so it’s often beneficial to stick to the bleeding edge kernels (though great for testing, I wouldn’t feel comfortable running these in production). Fedora provides the latest and greatest kernels and virtualization packages (libvirt, qemu, etc.) in the rawhide repository, which you can access by setting the enabled flag to 1 in /etc/yum.repos.d/fedora-rawhide.repo:
[rawhide]
name=Fedora - Rawhide - Developmental packages for the next Fedora release
failovermethod=priority
#baseurl=http://download.fedoraproject.org/pub/fedora/linux/development/$basearch/os/
mirrorlist=https://mirrors.fedoraproject.org/metalink?repo=rawhide&arch=$basearch
enabled=1
gpgcheck=0
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-fedora-$basearch
[rawhide-debuginfo]
name=Fedora - Rawhide - Debug
failovermethod=priority
#baseurl=http://download.fedoraproject.org/pub/fedora/linux/development/$basearch/debug/
mirrorlist=https://mirrors.fedoraproject.org/metalink?repo=rawhide-debug&arch=$basearch
enabled=1
Once you have the repository enabled, you can use yum to install the latest kernel:
$ yum update kernel
This will install the latest kernel, and allow you to take advantage of the latest Linux kernel features.