Re: Installing dual-boot

On Sat, 2022-01-15 at 07:52 -0500, Jonathan Billings wrote: > On Jan 15, 2022, at 07:25, Patrick O'Callaghan > <pocallaghan(a)gmail.com&gt; wrote: >> I have a laptop as a secondary machine, using F35. I've >> reluctantly had >> to install Windows 10 on another partition, and of course Windows >> has >> stamped all over the boot block in its usual arrogant way so I can >> no >> longer access my Fedora installation (though it's still there). >> >> What's the quickest way to get Grub back, with the Windows boot as >> an >> option? Can this be done from within Windows or do I need to boot a >> rescue drive? Both systems use UEFI. > The great thing about UEFI is that it doesn’t involve boot sectors > anymore, it’s just files in the EFI volume and entries in the boot > firmware. > > You should be able to go into your BIOS boot menu and choose the > Fedora boot entry and it should boot just fine, unless the windows > install formatted the EFI volume, but it shouldn’t by default.  You > can also boot off a live USB and use ‘efibootmgr’ to change the boot > order. > > Be sure to turn off Fast Reboot in the Windows settings.  That > setting bypasses the normal firmware boot and you won’t see the > Fedora bootloader. Thanks. I did manage to boot Fedora by pressing the hotkey on restart. I really just want to add Windows as an option in the Grub menu so I don't have to do this. I'll look at efibootmgr. --