MBR booting when UEFI/EFI not available

I have a laptop from about 14 years ago and it’s still kind of current in a way and I want to use this to install the generic x86 64bit version of HAOS and after trying everything I can think of I still cannot get it to boot. There is at least one post where someone got this to work. Would anyone have any advice?

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Hi,
I had same issues with fujitsu esprimo Q920. Ubuntu and debian installed corretly and I used HA in virtualbox vm.
The solution to install HAOS is to configure BIOS to boot in UEFI mode, secure boot disabled, and add HAOS to accepted boot options.
I booted Ubuntu live os in UEFI mode (that’s the key to succeed the next command) and added HAOS as boot option with this command run in terminal/
sudo efibootmgr -c -l /EFI/BOOT/BOOTx64.EFI -L HomeAssistant
the idea comes from here https://github.com/home-assistant/operating-system/issues/1760
Br, Ovidiu

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