I dont have Windows installed. I have Manjaro and OS Tumbleweed installed. Tumbleweed will have a default setup and with Manjaro I wanted to do a separate Home partition this time.
So are you saying that if I disable EFI boot then my non working Manjaro grub will suddenly start to work? I mean its working now but only because I rolled back to before the grub update. As soon as I install the Grub update then the Manjaro entry disappears and I only have access to snapshots.
I have tried to follow the guide but I got errors for every step after mounting the drive and chrooting into it.