I have endevourOS installed on one SSD, and Windows 10 on the other. I don’t know how to get Windows 10 to show up in grub or even boot into it from my BIOS. No matter what SSD I boot from, I am always booted into linux. Even when I boot from the SSD that I know has the Windows 10 install. I also know that I didnt overwrite or wipe the windows drive because I can see it as an NTFS formatted drive in endevourOS with all of the standard windows folders.
As of now I have no way to boot into windows, and I need to because of a few games I want to play and my school apps. I dont want to wipe my endevour install, but if I have to I will because I do need Windows this coming week for school.
Try mounting your Windows drive, then install and run grub-customizer:
sudo pacman -S grub-customizer
It should run the os-prober command @pebcak mentioned, and allow you to edit & save a new grub with Windows boot-loader inserted, all with an easy enough to use GUI.
It’ll also allow you to re-order the entries, and dictate which OS you want to launch as default if no option is chosen, as well as set a grub-timeout.
There was a recent thread where the op didn’t find their Windows partition after the changes to /etc/default/grub simply because os-prober wasn’t installed in the system
Don’t you think that using grub-customizer is like hitting the nail with a sledgehammer?
There are numerous reports about issues with it. Mostly, I admit, from users who really don’t know what it does and how. That’s why they cannot revert the changes and run into various issues with Grub,
I understand that. I just wanted to point out that there might be certain risk involved in using that tool, like there is if one does not know how to use a knife.
