[opensuse-arm] Help with grub boot

Hi guys, I have installed Leap 15.0 on a MicroSD for my cubox-i. I used to run an old, unupdated Tumbleweed with rootfs on /dev/sda2. Now that the boot is accomplished via grub2, efi and uboot, what is the minimum amount of data I should keep on the MicroSD to have a bootable system? The entire /boot dir? Many thanks in advance Alessio -- To unsubscribe, e-mail: opensuse-arm+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse-arm+owner@opensuse.org