@fredx181 @Clarity
Hi
I found simple way to boot DogLinux with Porteus Initrd with Ventoy
From .iso file in grub2 mode
Just replace from=/
with from=$vt_chosen_path
And don't require to enable VTOY_LINUX_REMOUNT=1
EDIT: For my custom build need to do something with extramod=/live/firmware
Currently i boot .iso with my build from ventoy.img in Qemu only.
It is a problem, because i am not sure about how to load extramod=
from .iso file.
I will look for ways to fix this later.
EDIT2: Hmm. No problem. All boot variants loaded ok.