clarify boot process

[doofin]

currently, both extlinux

images/opi5-image/profiledef

Line 84 in cbb4bf4

create_extlinux_conf(mnt_dir, cfg["configtxt"], cfg["cmdline"], ldev)

and

images/opi5-image/profiledef

Line 86 in cbb4bf4

grub_install(mnt_dir)

seems to be used,
but extlinux package doesn't seem to exist in some sbc like opi5(https://github.com/BredOS/images/blob/main/opi5-image/packages.aarch64). However, grub only seems to support passing dtb, but not device-tree-overlay. We shall clarify this in the docs

[Rippanda12]

Extlinux pkg doesn't exist
@bill88t plz nuke extlinux.conf creation on uefi images it's not needed

As for you @doofin would you be interested in writing in wiki.bredos.org?

[doofin]

Extlinux pkg doesn't exist
@bill88t plz nuke extlinux.conf creation on uefi images it's not needed

As for you @doofin would you be interested in writing in wiki.bredos.org?

Ok, so there is no extlinux anymore. Yeah I'd be glad to when I understand the process . I didn't see how the device tree overlay works for grub, the docs only mentioned device tree but not overlays