Weekly Changes – 22/01/2024
This week there is an important fix for nvidia on Focal systems, otherwise the most noticeable change is an update to the LCFG client component to make starting/stopping more robust. Here are the details of all the significant changes…
LCFG client
There is a new version of the LCFG client component package for Ubuntu. The component will now ensure that its private temporary directory is cleared out before the component starts and after it stops. This should help avoid leaving any old files lying around that can occasionally cause issues.
nvidia
The nvidia 535 series driver for Ubuntu Focal has been updated to version 535.129.03 to help support the latest kernel. This was causing package conflicts on some systems after the last weekly release.
Disabling kernel module loading
For user-accessible servers (e.g. web or SSH) it’s often a good idea to disable the loading of kernel modules after boot time as a precaution against malware. This can be achieved by including the lcfg/options/kernel-disable-module-loading.h header or, for DICE systems, dice/options/kernel-disable-module-loading.h. Occasionally though this conflicts with essential admin tasks, such as upgrading Dell firmware using dsu, so it’s handy to have a way to temporarily re-enable the loading of modules. On DICE systems this can now be done by defining the DICE_MAINTENANCE macro at the top of an LCFG profile and then rebooting. Once the work is complete simply remove the macro again.
aptly component
The LCFG aptly component now provides a manual page that documents all the resources. There is also a new schema (version 3) under development which will add some new features, more details will be provided once the work is complete.
Debian 12 bookworm
There is now minimal support for the latest Debian stable release. More packages can be built on request.
Changes to headers and package lists
Members of the Informatics Computing team can browse all the changes to the headers and package lists.
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