Main

Packages released in main are designed to be drop-in replacements for the corresponding packages on a stock CentOS Stream system. This repository can be enabled by installing the centos-release-hyperscale package:

$ sudo dnf install centos-release-hyperscale

Note that this release package will pull in epel-release, as EPEL is a prerequisite for Hyperscale. We also recommend enabling CRB (which is itself a prerequisite for EPEL) with:

sudo dnf config-manager --set-enabled crb

Available packages

Browse the release tag on CBS to see what packages are available. Please report any issues with these packages on our package-bugs tracker.

kpatch

We ship an updated version of kpatch, which also includes the kpatch-build tool. This can be used to convert kernel patches to be then applied onto a system that supports Kernel Live Patching.

selinux-policy

In order to support SELinux enforcement with the latest systemd, we backport the selinux-policy based on Fedora Rawhide packaging. It is a straight port of the Rawhide version and is only updated as needed.

systemd

We ship a backport of systemd based on the Fedora Rawhide packaging. This includes a variety of bug fixes in existing features such as timers and cgroups, as well as new properties that take advantage of the latest kernel features. You can also look forward to new knobs in the various tools and daemons to make debugging and configuration easier.

By default, this backport will boot the system using the unified cgroup hierarchy (i.e. cgroup2), in line with systemd upstream policy. This can be changed with the appropriate kernel cmdline knobs.

Multiple systemd service stacks that are not included in base CentOS Stream are available in the Hyperscale version:

• systemd-homed
• systemd-networkd
• systemd-portabled
• systemd-timesyncd
• systemd-userdbd

We also build test executables and include them in the systemd-tests package.

Systemd-oomd was declared stable in systemd 248 and was adopted in Fedora 34 as the default userspace out-of-memory (OOM) killer. We backport the systemd-oomd-defaults package which provides the default policy for memory pressure-based OOM kills used by Fedora.