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EuroLinux 9.1 Release Notes

Major changes in EuroLinux 9.1.

Installer and image creation

Image builder on-premise now supports:

  • Uploading images to GCP.
  • Customizing the /boot partition.
  • Pushing a container image directly to a registry.
  • Users can now customize their blueprints during the image creation process.

Installer support customization size of the /boot partition. -allow-ssh kickstart option allows ssh login as root user.

GRUB bootloader menu is hidden by default.


EuroLinux 9.1 introduces Keylime, a remote machine attestation tool using the trusted platform module (TPM) technology. With Keylime, you can verify and continuously monitor the integrity of remote machines.

OpenSSH now supports setting minimum RSA key length. The option to be set is named RequiredRSASize. crypto-policies enforce minimum 2048-bit RSA key length for OpenSSH by default.

NSS no longer support RSA keys shorter than 1023bit.

SELinux user-space packages have been upgraded to version 3.4. Changes: - Improved relabeling performance through parallel relabeling - Support for SHA-256 in the semodule tool - New policy utilities in the libsepol-utils package

Command-line tools

The following command-line tools have been updated in EuroLinux 9.1: - cronie, now supports a randomized time within range ~ - ReaR, now utilises new variables for executing commands before and after recovery - opencryptoki to version 3.18.0 - lsvpd to version 1.7.14 - libvpd to version 2.2.9 - sysctl supports same syntax for arguments as systemd-sysctl

EuroLinux 9.1 introduces a new package xmlstarlet with which you can parse, query, validate, transform and edit XML files.

Infrastructure services

The following infrastructure services tools have been updated in EuroLinux 9.1: - chrony to version 4.2 - unbound to version 1.16.2 - frr to version 8.2.2 - whois package now provides the /usr/bin/mkpasswd binary, which can be used to encrypt a password with the crypt C library interface.


NetworkManager supports migrating connection profiles from the deprecated ifcfg format to keyfile format.

The MultiPath TCP (MPTCP) code in the kernel has been updated and upstream Linux 5.19.

NetworkManager now clearly indicates that WEP support is not available in EuroLinux 9.

Programming languages, web and database servers

Later versions of the following components are now available as new module streams: - PHP 8.1 - Ruby 3.1 - Node.js 18

The Apache HTTP Server has been updated to version 2.4.53.

Compilers and development tools

Updated system toolchain

The following system toolchain components have been updated in EuroLinux 9.1: - binutils 2.35.2 - GCC 11.2.1 - glibc 2.34

Updated performance tools and debuggers

The following performance tools and debuggers have been updated in EuroLinux 9.1: - GDB 10.2 - Valgrind 3.19 - SystemTap 4.7 - Dyninst 12.1.0 - elfutils 0.187

Updated performance monitoring tools

The following performance monitoring tools have been updated in EuroLinux 9.1: - Grafana 7.5.13 - PCP 5.3.7

Updated compiler toolsets

The following compiler toolsets have been updated in EuroLinux 9.1: - GCC Toolset 12 - Go Toolset 1.18 - Rust Toolset 1.62 - LLVM Toolset 14.0.6

Java implementations in EuroLinx 9.1

EuroLinux 9 AppStream repository includes: - java-11-openjdk - OpenJDK 11 Java Runtime Environment and the OpenJDK 11 Java Software Development Kit. - java-17-openjdk - OpenJDK 17 Java Runtime Environment and the OpenJDK 17 Java Software Development Kit. - java-1.8.0-openjdk - OpenJDK 8 Java Runtime Environment and the OpenJDK 8 Java Software Development Kit. - Maven 3.8 has been added as a module stream

Batteries repositories

The battery repository is available for customers with Golden Key and Gaia subscriptions. There are about 1000 packages that are not part of any build (so they are not included in EuroLinux Open Build roots) but are required to rebuild EuroLinux/Custom Fork from RHEL or Eurolinux sources.

EuroLinux 9 for ARM

EuroLinux for ARM will use an updated Gaia rebuild stack. We decided that this is an ideal testbed because ARM64 is not as popular as x86_64 architecture. It also allowed us to create x86_64, open build roots for i686 and x86_64 and batteries repos faster. Because creating EuroLinux 9 beta took us about four weeks, ARM should take about two weeks, after updating Gaia Stack, as we have all the necessary batteries and build orders figured out.

Gaia updates

New Gaia used to rebuild EuroLinux 9 for ARM64 is even more distributed.

There are new commands in Gaia: - new automodule-update Gaia subcommand, that well - automatically updates modules. No more manual config changes for modules - new automodule-merge Gaia subcommand. This command uses multiple input files (RH/EuroLinux modules files + result build + custom files) to create an updated module definition

Other notable changes: - Striga now creates automodule-* commands - Striga can create --partial commands for module rebuild - Vardoger now supports config files that allows ignoring chosen tests/levels for selected RPMs - A lot of new configs for EuroLinux 9

We will also update hardware requirements for rebuild, including reference build servers for ARM and PowerPC. The rebuilds will start with the release of EuroLinux 9. It will also require updated infrastructure.

Container and cloud images

You can use the following publicly available images for EuroLinux 9 beta - EuroLinux 9 Vagrant Boxes (libvirt/VMware Workstation/VirtualBox) - EuroLinux 9 Container on the Docker Hub - EuroLinux 9 Container on the

Additional resources