@george1421 a big thank you !
Surface tablet don’t have integrated ethernet interface thus i can’t boot using UEFI PXE even if in the bios i have UEFI ipv6 and ipv4 pxe entry.
I used your FOS image and burn on a usb stick ( we have a lot usb keys thanks to dell !) then i changed the grub.cfg file to use my fog server ip and add french keymap !
I changed some files on the usb stick, i replaced the bzImage, bzImage32, init.xz and init_32.xz files to get the latest kernel avalable to be sure that everything work.
Now i can deploy image on surface go tablet without trouble !