I’ve just had a new computer made and ordered without an OS so that I can install Ubuntu. But it has come with Secure Boot enabled in the UEFI bios. The facility to turn it off is faded out so I cannot change it. The motherboard is Asus H110M-R: Micro-ATX. There is a facility for running legacy software, but Ubuntu will not run with UEFI enabled. Ubuntu is configured to ignore Secure Boot, and runs in “insecure mode”.
The problem is that other Linux discs will not run in the DVD drive. Is there a way of turning off Secure Boot? Bryan Mitchell, viaemail Neil says: As you’ve discovered, only a small number of Linux distros have the correct keys to support Secure Boot; Ubuntu being one but also Fedora and openSUSE. Most others don’t and so won’t be able to run on any PC that has this applied. It’s not an evil conspiracy to kill Linux, it’s a security feature, but obfuscated options like this don’t help.
Asus does provide a way to disable it outlined at the URL below but the process is loosely this: enter the UEFI, select Advanced Mode Menu > Boot > Secure Boot. Change the OS option from Windows to Other OS, which should mark the Secure Boot keys as unloaded. The UEFI won’t usually be the issue, as the GRUB2 boot loader handles