Installation Notes

Update Instructions

Please read the release notes carefully before proceeding with the next steps.

Important information

Update note: Important information for Collax V-Cube 6.9.12 or earlier Please note the release notes Collax V-Cube 7.5.0 if the nodes have a version 6.9.12 or earlier and have not yet been updated.

Upgrade for Collax V-Cube+ and V-Bien will follow It is not yet possible to upgrade a cluster to version 7.5.4. The upgrade for Collax V-Cube+ and Collax V-Bien will follow.

Procedure

To install this update, please carry out the following steps:

1. It is highly recommended to backup of all server data with the Collax backup system before proceeding. Check that the backup was successful before proceeding with the update (this can be done within the backup information email).
2. In the administration interface go to Menu → Software → System Update and press Get Package List. This will download the listed update packages. If successful the message Done! will be displayed on the screen.
3. Click Get Packages to download the update packages.
4. Click Install. This installs the update. The end of this process is indicated by the message Done!.
5. A new kernel will now be installed. The system will reboot automatically after installing the update. An appropriate note will be shown if the update process is completed.

New in this version

Linux Kernel 6.6.141

This update upgrades the Linux kernel to version 6.6.141.

The kernel update includes security fixes for several vulnerabilities, including “Fragnesia/Fail Copy 3.0”, the third bug within three weeks from the same family as “Dirty Frag”.

In addition, a new vulnerability called “ssh-keysign-pwn” has been discovered, in which Qualys researchers identified a race condition in the kernel’s ptrace access path.

OVMF: New Microsoft UEFI certificates (2023)

The updated OVMF package now includes the new Microsoft UEFI certificates from 2023. This ensures that Secure Boot in virtual machines remains functional even after the previous 2011 certificates expire.

System Management: Monitoring Multiple RAID Controllers

Starting with this version, multiple RAID controllers can be monitored in parallel. The megaraid_sas driver recognizes all controllers individually, and critical conditions are reported separately via Nagios.

UPS support: Reactivation of messages on the administration interface

In zhe last update, the UPS service NUT was updated. However, this required the information continuously displayed on the administration interface (job notify) to be disabled. A new update with this update of the NUT UPS service now allows the information to be displayed again.

Notes

Support for Windows 2025

The KVM guest drivers have been updated to virtio-win-0.1.285 (release 2025-09-12). The ISO image has also been compressed, which significantly improves handling and load times.

With this update, Windows 2025 is supported as a guest operating system, as appropriate drivers are now available.

Known issue: During the installation of Windows 2025 or Windows 11, a black screen may occur when loading the Virtio GPU driver. Therefore, only the Virtio block driver should be loaded during installation; other Virtio drivers (especially GPU) should not be used during installation.