What is CentOS 8?¶
The CentOS Project is a community-driven free software effort focused on delivering a robust open source ecosystem around a Linux platform. Packages contained in CentOS are built from source code from the RedHat Enterprise Linux (RHEL) distribution. More information on the CentOS project can be found upstream at the CentOS website.
What is CentOS 8 Stream?¶
CentOS Stream is a rolling-release distro that tracks just ahead of Red Hat Enterprise Linux (RHEL) development, positioned as a midstream between Fedora Linux and RHEL.
Note: CERN IT does not support "CentOS 8 Stream"
- CentOS 8 @ CERN was initially introduced via an ASDF session on the 12.12.2019
- The operating system is provided currently as a "testing" release
- The "testing" release includes basic CERN environment integration setup only
- A "production" release will follow in 2020, which will provides the same integration setup - however, tested and validated for CERN production use
How does CERN use CentOS 8?¶
CentOS 8 updates are staged
- A 'production' repository is provided, which most systems will use and is updated once per week (except for critical security vulnerability patches)
- A 'testing' repository is also provided which is updated daily
- Snapshots of CentOS repositories are performed daily and can be found at this URL
- The 'cern-yum-tool' is a new package that can be used to easily switch between 'production', 'testing' or 'snapshot' repositories
- The 'yum-autoupdate' package is provided for automatic (distro-sync) updates (the same as CC7).
- Yum repositories files changed to use http://linuxsoft.cern.ch/cern/centos/8/
- Added CERN Koji RPM signing keys
- Yum repositories files changed to use http://linuxsoft.cern.ch/
Note: Unless otherwise stated above, CentOS 8 packages (rpms) are the very same packages released by the upstream CentOS team.