BIOS Boot is not officially supported anymore
eweOS only support UEFI bootloaders. There may be some packages supporting BIOS booting but they're not officially supported.
We use limine as replacement for grub. It is the default bootloader for eweOS.
pacman -S limine
Install limine and create corresponding boot entry.
limine-install EFI_PARTITION_MOUNTPOINT
Generate limine configuration
limine-mkconfig -o EFI_PARTITION_MOUNTPOINT/limine.conf
Currently kernel updating and initramfs generation is handled by limine-mkconfig as well, so running limine-mkconfig (without arguments) may be needed after a system upgrade or changing initramfs configuration.
limine-mkconfig would only read kernels located at /usr/lib/modules/ AND belongs to packages installed by pacman. Single user mode menu options will also be generated.