Linux on IBM Z and IBM LinuxONE use the s390x hardware architecture to run various Linux distributions, including SUSE Linux Enterprise Server (SLES), Red Hat Enterprise Linux (RHEL), and Ubuntu. Tens of thousands of software packages are tested and distributed through these projects, and various community distributions.
But for some applications, a team at IBM pays special attention to make sure they compile and run as expected (or better!). This work is often done as a collaboration between the open source projects themselves and the team at IBM. This effort is an on-going collaboration with every release of the software needing to be validated.
Welcome to our monthly report!
For the month of May 2025, the team worked to also validate recent versions of the following:
- Apache Cassandra
- Beats
- CockroachDB
- Consul
- Grafana
- Keystone (Openstack)
- MongoDB Driver - C
- MongoDB Driver - Java
- MongoDB Driver - Ruby
- Neo4j
- OPA
- PHP
- PM2
- RabbitMQ
- Ruby
- Spire
- Terraform
- Zabbix Agent
- Zabbix Server
The full list of validated software to date is available here: https://www.ibm.com/community/z/open-source-software/
We also saw a lot of activity from the broader open source community with both libebml and libmatroska from the Matroska project add CI for s390x. The Zig Programming Language extended their s390x support with s390x packages added to the Zig package manager with release 97, and the addition of s390x containers. Finally, our friend Zxilly worked on setup-uv to add s390x support to their CI, and was mentioned in their v5.3.0 release which includes tar.gz binaries in their install.sh.
Looking for open source software that's not maintained by this team? Visit the Open Mainframe Project Software Discovery Tool to search for what you're looking for across a number Linux distributions. And there are always folks from IBM and beyond working to enable more projects that we don't even know about!
Are you a developer for an open source project interested in seeing your application made available to users on Linux on IBM Z and IBM LinuxONE? Your first stop should be the IBM LinuxONE Community Cloud where you can sign up for a free virtual machine for 120 days where you can see how your application runs, and discover for yourself what you may need to change to get it to run well on Linux on IBM Z and IBM LinuxONE.
If you wish to have permanent virtual machines for development, testing, or to add to your CI system, you can fill out this form to apply for resources for your project.