Upgrade gitlab 18 to 19 - mattermost deprecation causing failure.

In version 19 of GitLab mattermost has been removed from the omnibus package. The upgrade process checks for mattermost configuration directives and aborts if any are found. Unfortunately these can take some weeding out - particularly when using the https://packages.gitlab.com/gitlab/gitlab-ee apt repository.

Our specific case:

• Debian 12/13
• GitLab omnibus ee installed using apt package
• Mattermost not running and never configured

To upgrade:

Do usual checks and backups beforehand.

Check all mattermost configuration options in /etc/gitlab/gitlab.rb are commented out or removed. If they are removed then it is easy to check with grep that nothing has been missed.

Synopsys Sentaurus DNS issue

Synopsys Sentaurus is an industry-standard TCAD (Technology Computer-Aided Design) software suite for simulation of semiconductors (fabrication, physical behavior, electrical characteristics etc.) We found a problem when installing it on some of our Linux systems (Rocky 8.10). We could start up the swb application ok and choose a project to run (e.g. an example like swb/mosfet - copy this to a writable location). Once the project was loaded the interface got very laggy, and running the project resulted in not much happening. You can see this by opening the project log (there’s a menu item for this) - it gets to INFO: Starting new project execution... and then nothing happens.

Dell PowerEdge R630 machine check error when booting Proxmox 9

Actually encountered this problem a while ago, but forgot to write it up at the time

We have a Dell PowerEdge R630 that is running Proxmox 9. On update from kernel 6.14 to 6.17 the system started boot looping - the system would start to boot, and then early on when the kernel was booting it would stop and reset the machine. The iDRAC event logs showed that there were “Machine Check errors” occurring. Booting with the previous 6.14 kernel worked as normal.