I'm installing 3CX V18 on a mini PC Below
GIGABYTE Ultra Compact Mini PC/Intel UHD Graphics 600/ M.2 SSD/HDMI (2.0A)/ DP1.2A Component- GB-BLCE-4105
It support only UEFI, i have run the ISO debian 10 from USB, it install, after first reboot to install 3CX, it never goes to 3CX installation...