Upgrade SLES 12 SP4 up to SLES 15 SP 5 offline on physical host

Hi everyone,

The SAN storage is connected to the physical host and bonded interfaces are also configured.

I want to make sure that the offline update doesn’t modify the machine’s configurations.
Should I consider updating the SAN drivers first too? The host is also configured with a bonding interface, but I don’t think any configuration will be changed there either.

Does anyone have any experience with this kind of configuration and offline update?

Thanks in advance and best regards