Question Linux kernel update 5.10 on Ubuntu 20.04

[josephGW]

Hello Everybody,

Did someone tried to install the latest linux kernel ( 5.10.2 ) or the 5.8 on Ubuntu 20.04 LTS with Plesk Obsidian?

Could it break plesk functionalities ?

Thanks by advance.

 

[josephGW]

Little up

 

[learning_curve]

@josephGW We switched to the Official Ubuntu HWE release kernel on Ubuntu 20.04.1 LTS / Plesk Obsidian (see forum signature) and have experienced zero problems with Ubuntu or Plesk since then. We did exactly the same on Ubuntu 18.04 previously which gave exactly the same results. All servers have different setups though, so your own experience may differ of course. The Ubuntu 5.10.* and 5.11.* stable kernels can be utilised via a manual upgrade process but we haven't taken that step ourselves so far.

 

[josephGW]

Hello,

Ok @learning_curve Thanks for your answer, i've as well updated to the last 5.4 linux k.
I'll try with 5.10 and i'll tell you if it works.

 

[IgorG]

If Plesk is installed on a hardware server, the kernel updates are recommended if there are only vendor's repositories configured. Otherwise, if the custom repositories provide new kernels, it is better to have the kernel manually updated from the vendor's repository. The reason is simple: major troubles are caused by kernels with GRSecurity patches applied. Plesk is not designed for working with such configurations.

 

[learning_curve]

.....major troubles are caused by kernels with GRSecurity patches applied...

AFAIK all Official Ubuntu Kernels (shown here on Ubuntu to Mainline kernel version mapping) are released without any GRSecurity patches being present.

Quite correct that if they wanted to, people can regularly apply GRS patches themselves, via custom repositories and/or by applying their own config variations onto any Ubuntu Kernel(s) that they are using, but it's not a simple exercise to do that, as GRS was/is initially, specifically aimed at Debian anyway wasn't it?

We don't use GRS & never have. All of our Ubuntu HWE kernels / kernel updates, are indeed official Ubuntu updates from official Ubuntu repositories.

 

[IgorG]

In short, use kernels from the official OS vendor repositories, and there will be no problems.