Tuesday, May 15, 2018

grub2 - Removing Ubuntu Grub from motherboard firmware

I created a dual boot of linux with Windows 10. I installed NVIDIA drivers then installed cuda toolkit. It asked if I wanted to update the Grub, I said yes. After that I was no longer able to access Ubuntu. I select Ubuntu in the boot menu and it just goes to Windows. I have tried many things and it seems to me the Grub is on the motherboard firmware.



I tried to start over by reformatting everything. I have deleted my hard drives and reinstalled Windows 10 however the Ubuntu boot option is still listed there. The problem is if I install Ubuntu it still goes straight to windows even after selecting ubuntu in the boot menu. I would like to get rid of this option then install Ubuntu again from scratch.



I have already tried the following:



This tries to reinstall the grub Dual-boot boot menu does not show up after installing Ubuntu 15.10 alongside Windows 10



I have tried boot repair from ubuntu and windows




Ubuntu: How can I repair grub? (How to get Ubuntu back after installing Windows?)



For windows: if I run bootrec /fixboot I get access denied if I run bootrec /fixMbr it completes succesfully but does not fix anything



My last resort was try to get the computer back to factory settings but even after deleting both hard drives and installing a fresh copy of Windows the Ubuntu boot option is still there and causes a conflict when I actually install Ubuntu and thus it goes straight to Windows.

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