I'm currently running Linux (Debian 8 + customized kernel 4.9.30) on my CELSIUS H760. Yes, I know it's unsupported, but it has worked pretty well for me so far. However, the BIOS updates can be tricky.
The previous BIOS updates were easy enough to install using Windows PE: the Windows version of the update ran on 32-bit Windows PE, so I could just prepare a bootable USB stick or even a network boot configuration on a PXE server and use that to update the BIOS.
But the new BIOS 1.19 that was released as a fix for the Intel firmware vulnerability (CVE-2017-5689) seems to be available only as an Admin Pack. It includes an updater that is supposed to be runnable from Windows, and files & instructions for creating a FreeDOS-based bootable USB stick for another update method.
The FreeDOS-based updater told me that "secure BIOS" is enabled and so the DOS-based updater cannot perform the update. And the Windows-based Update_.exe in the Admin Pack starts but immediately displays a dialog "Unknown error, please contact support".
Has anyone successfully installed the BIOS 1.19 using any sort of USB-stick or network boot?
Or does anyone have any idea what the Windows-based Update_.exe from the Admin Pack technically requires to run successfully? Perhaps I just need to add some drivers to the Windows PE environment?