We recently uploaded a 6.14 kernel into our repositories. The current 6.8 kernel will stay the default on the Proxmox VE 8 series, the newly introduced 6.14 kernel is an option.
The 6.14 based kernel may be useful for some (especially newer) setups, for example if there is improved hardware support that has not yet been backported to 6.8.
This follows our tradition of upgrading the Proxmox VE kernel to match the current Ubuntu version until we reach an (Ubuntu) LTS release, like the 6.8 kernel is, and then provide newer kernels as opt-in. The 6.14 kernel is based on the Ubuntu 25.04 Plucky release.
We have run this kernel on some parts of our test setups over the last few days without any notable issues, for production setups we still recommend keeping the 6.8 based kernel, or test on similar hardware/setups before moving all your production nodes up to 6.14.
How to install:
Please note:
Feedback about how the new kernel performs in any of your setups is welcome!
Please provide basic details like CPU model, storage types used, ZFS as root file system, and the like, for both positive feedback or if you ran into some issues, where using the opt-in 6.14 kernel seems to be the likely cause.
The 6.14 based kernel may be useful for some (especially newer) setups, for example if there is improved hardware support that has not yet been backported to 6.8.
This follows our tradition of upgrading the Proxmox VE kernel to match the current Ubuntu version until we reach an (Ubuntu) LTS release, like the 6.8 kernel is, and then provide newer kernels as opt-in. The 6.14 kernel is based on the Ubuntu 25.04 Plucky release.
We have run this kernel on some parts of our test setups over the last few days without any notable issues, for production setups we still recommend keeping the 6.8 based kernel, or test on similar hardware/setups before moving all your production nodes up to 6.14.
How to install:
- Ensure that either the pve-no-subscription or pvetest repository is set up correctly.
You can do so via CLI text-editor or using the web UI under Node -> Repositories. - Open a shell as root, e.g. through SSH or using the integrated shell on the web UI.
apt updateapt install proxmox-kernel-6.14reboot
Please note:
- The current 6.8 kernel is still supported and will stay the default kernel.
- There were many changes, for improved hardware support and performance improvements all over the place.
For a good overview of prominent changes, we recommend checking out the kernel-newbies site for 6.12, 6.13, and 6.14. - Most of those depending on Realtek's r8125 out-of-tree driver can use the in-tree driver again as model support improved considerably.
- The kernel is also available on the test and no-subscription repositories of Proxmox Backup Server and Proxmox Mail Gateway.
- We plan to update the previous 6.11 opt-in kernel if any serious issues come to light in the coming weeks, but will otherwise discontinue updates for that kernel.
- If you're unsure, we recommend continuing to use the 6.8-based kernel for now.
Feedback about how the new kernel performs in any of your setups is welcome!
Please provide basic details like CPU model, storage types used, ZFS as root file system, and the like, for both positive feedback or if you ran into some issues, where using the opt-in 6.14 kernel seems to be the likely cause.
