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Red Hat Enterprise Linux 9

Alpha Testing

We encourage you to install RHEL9 on testing systems and tell us what we may have broken, what bugs you run into and what features you are missing. Please be aware of certain things we changed on how we want the base operating system to work, listed below.

Bugs and issues can be reported in the Linux project in JIRA.

Additional ressource Considerations in adopting RHEL 9

Changes for Base Installation

No Support for AFS

The future support model for AFS or the service and functionality it provides is currently under consideration. Consequently it has been decided not to support AFS in the PSI RHEL9 distribution at the time being.

Network Configuration

By default the network configuration is handed over to NetworkManager which does automatic configuation.

If you wish different behaviour, e.g. for static IP addresses, please check out the Network Configuration guide.

Disk Layout

Provided disk size is 64GB for virtual machines.

Name Path Size Type LVM
root / 16GB xfs yes
home /home 2GB xfs yes
tmp /tmp 2GB xfs yes
var /var 16GB xfs yes
log /var/log 4GB xfs yes
boot /boot 1GB ext4 no
swap - 4GB swap no

Workstation Package Groups

Changed the ammount of packages installed by default on workstation installation. See the comparison below:

RHEL 7&8 RHEL 9
  • VMware platform specific packages (platform-vmware)
  • Container Management (container-management)
  • Internet Browser (internet-browser)
  • GNOME (gnome-desktop)
  • Headless Management (headless-management)
  • Server product core (server-product)
  • Hardware Monitoring Utilities (hardware-monitoring)
  • base-x (base-x)
  • core (core)
  • fonts (fonts)
  • guest-desktop-agents (guest-desktop-agents)
  • hardware-support (hardware-support)
  • input-methods (input-methods)
  • multimedia (multimedia)
  • networkmanager-submodules (networkmanager-submodules)
  • print-client (print-client)
  • standard (standard)
  • Internet Browser
  • VMware platform specific packages (platform-vmware)
  • GNOME (gnome-desktop)
  • Core (core)
  • fonts (fonts)
  • multimedia (multimedia)
  • office-suite (office-suite)
  • print-client (print-client)

Tracking Epic

https://jira.psi.ch/browse/PSILINUX-287

Caveats

Missing or Replaced Packages

List of packages removed in RHEL 9

RHEL 8 RHEL 9 Remarks
mailx s-nail S-nail is MIME capable and has extensions for line editing, S/MIME, SMTP, IMAP, POP3, and more.
platform-python, python2 (python27:2.7), python36 (python36:3.6), python38 (python38:3.8), python39 (python39:3.9) python3 As for all python* packages
pulseaudio pipewire-pulseaudio The pulseaudio server implementation has been replaced by the pipewire-pulseaudio implementation. Note that only the server implementation has been switched. The pulseaudio client libraries are still in use.
inkscape1 inkscape Also affects inkscape-docs and inkscape-view

Documenatation

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