On Sun, 29 Dec 2024 11:07:18 -0800 Peter Ehlert <pe...@sdi-baja.com> wrote:
> On 12/29/24 08:26, Eben King wrote: > > I think I've done everything reasonable in my firmware to ensure > > booting by EFI. I have: > > > > Storage boot option control UEFI only > > Other PCI device ROM priority UEFI only > > (other options for both are "Legacy only" and "Disabled") > maybe this will help. > Debian, and others show in GRUB, but not windows 10. > HP workstation: I press F9 on boot for a boot menu > I get a listing: > UEFI - debian > >other systems< > UEFI - Windows Boot Manager > > It boots fine. > Restart and I get GRUB, but without a windows option > > If you run update-grub, do you see a warning that os-prober will not be executed? After installation or upgrade to grub, os-prober is disabled and will not detect Windows or any other OS that may be installed. https://forum.manjaro.org/t/grub2-why-is-os-prober-now-disabled-by-default/57599 The answer is to modify /etc/default/grub and run update-grub again: To restore the old behavior, open a terminal and issue sudo echo GRUB_DISABLE_OS_PROBER=false >> /etc/default/grub && sudo update-grub Note that you will need to do this again when grub is upgraded. -- Joe