I wanted to dual boot my OMEN 15 2020 RYZEN variant to windows and ubuntu. I did the partition and installed ubuntu from bootable pendrive, but now when i restart and press f9 for boot order i can't see any option to boot in ubuntu. I did turned secure boot off but there was no option for enabling legacy boot which was recommended to dual boot ubuntu. But now I'm stuck and can't see any boot option for ubuntu.
I'm sorry, but HP only warranties their PCs for usage with the OS that comes preinstalled.
IF you replace that with a Linux distro, or add a Linux distro, then you assume full responsibility for maintaining that -- including solving any problems with booting the other OS and/or installing the other OS.
Modern PCs with UEFI, instead of the older BIOS, are especially difficult to install because you have to go into the UEFI settings and make several changes before you can even boot from a USB stick -- and we are unable to assist in that work.
Your best bet for support now is to contact the support forum of the distro you are using.
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