Just did a test install using the 08 iso (had it around and didn’t see the new one until later…). Installed in UEFI mode on an HP 8200 Elite (i5, 8 GiB RAM, 500 GiB disk). The machine already had a fresh Windows 10 install.
I used Gparted to add partitions (8 GiB swap, 30 GiB /, 200 GiB /home). I mounted the EFI partition as /boot/efi. Install was fine. When I rebooted, I got a Grub menu with EndevorOS and Windows. Started Endevor, worked fine. I then wanted to check that Windows would start, so I rebooted and selected the Windows option. That also worked.
The oddity comes on the next reboot - no Grub menu, just straight into Windows. I’ve found that by using F9 to get the HP boot menu, I can select EndevorOS, which then gives me the Grub menu. But I can’t get the Grub menu by default. I can’t see any option in the HP boot menu to change the boot order.
I’m a long term Arch user, but I’ve little or no experience with EFI booting. So, have I missed something in the install? The machine is quite old (don’t think it has a secure boot option at all), so maybe there is something odd in the EFI implementation. Any guidance would be very useful…