Some older versions of the BIOS don't play nice with GRUB2 (which Debian/LinuxCNC use). The BIOS must be upgraded, which can actually be done from within Linux. Here is the overall procedure: | Some older versions of the BIOS don't play nice with GRUB2 (which Debian/LinuxCNC use). The BIOS must be upgraded, which can actually be done from within Linux. Here is the overall procedure: |