I was trying a double Manjaro install into the same disk (different partitions) with grub to manage the dual boot. I was unable to do this straight on because there’s eventually some kind of overwriting of files in the /boot/efi partition. The hardware is configured this way:
/dev/sda2 / for manjaro 1
/dev/sda3 / for manjaro 2
Any thoughts about the best and simplest way to achieve this goal? I really don’t like to have different DEs on the same install so I prefer to duplicate the install. This is the main reason to double install Manjaro.