This message was posted on behalf of Intel Corporation
Thank you for contacting us regarding the compatibility between our Intel Core i7 8700K/Z370 chipsets and Linux; it will be more than a pleasure to provide you with guidance on this matter.
In this case, our CPUs (core “i” family, Celeron, Pentium, etc…) are not OS dependent, however the GPU embedded on the units will determine if you can run an OS or not into the unit.
We can use, as a quick example, the processor that you own, Core i7 8700K.
This unit comes with Intel® UHD Graphics 630 that support Linux and Windows® 10 (64-bit only).
Intel does not provide direct downloads and technical support for Linux drivers. The Intel Graphics Linux driver is primarily supported through the original equipment manufacturer (OEM) as you may know.
On the other hand, OEM manufacturers are the ones that decide if, in this case the chipset Z370 and the board will support an OS such as Linux, for example:
The content on the above site is not controlled by Intel. This information is offered for your convenience and should not be viewed as an endorsement by Intel for the merchants or services offered there.
I strongly recommend you to get in touch with the OEM manufacturers in order to get the compatibility list of Operating Systems so you can install your CPU as soon as possible.
I hope this helps.
Someone gave me a reply there: cpu - Which Z370 motherboard manufacturer references are compliant with Linux, please? - Super User
He is confirming the issue between the compatibility of board's GPU with Linux and he add also to modify some Linux kernels with:
"The issue is much more likely to be support for the chipset (but normally this can be worked around - for example, i915.alpha_support=1 for coffee lake support for Intel on some kernels.)"
He add also another possible issue with the Linux network card driver of the motherboard.
A priori I will choose a Debian 9.3 distro because of this feature: installation procedure by the network with BOOTP, TFTP, RARP, DHCP or PXE that could be configure with parameters in the board's BIOS see https://www.debian.org/releases/stable/amd64/ch04s05.html.fr (in French).
Here you have the also my research on the Web at this URL: Quelle référence de carte mère pour un chipset Z370 et un socket LGA1151 compatible avec Linux, s'il vous plait ? (but I have written there in French)
No I change my mind I switch to Windows 10 and no longer in Linux because of this Wikipedia article on Windows 10: https://fr.wikipedia.org/wiki/Windows_10#Windows_Subsystem_for_Linux_(WSL)
Thanks anyway to those who tried to help me ...
I do not take the cabbage anymore! Now I have more than the embarrassment of the choice of the motherboard ... Frankly "what a galley" and even "which *s_h_i_t*" vulgarly speaking to choose its operating system!
Since version 14393, Windows 10 includes a new subsystem co-developed by Microsoft and Canonical, for the purpose of running Linux applications on Windows. This function, named Windows Subsystem for Linux or WSL, available in beta as of January 2017, was then activated via the control panel. It is since July 2017 installable from the Windows Store, with full support announcement of Microsoft. It provides Windows access to thousands of open source applications Ubuntu repositories and tools to modify, recompile and run (editors, interpreters, compilers, libraries, documentation ...). This system avoids having to reboot to go under Linux, an operation that has become even more restrictive since UEFI and the Secure Boot. Loss of performance and functionality through a virtual machine under Windows are also avoided.
The success of this option has significantly increased the number of Linux installations listed, although we do not know in September 2017 whether it is a trend or a novelty effect.