I wanted Devuan to run on an SBC (I have an ARM64 SBC with an RK3566 RockChip SoC) which uses the U-Boot bootloader to boot with LUKS. There are two partitions: boot (ext3) marked as bootable, and cryptroot (LUKSv2).

What I did:

I used file from linux-u-boot-orangepi3b to update bootloader,factory one is from 2017.

I made a Devuan system with the help of debootstrap using the default variant, version ceres, and I added DietPi mirrors (because they have a kernel that fits my board). I installed cryptsetup, the kernel, Wi‑Fi-related packages, added firmware blobs to /lib/firmware, and compiled booster for the initramfs tool.

I wrote boot.cmd and compiled it to boot.scr, and also wrote extlinux.conf (because I had seen one of the Manjaro ARM images boot on my board; it didn't have the syslinux package but also no boot.scr).

The bootloader still doesn't recognize the partition; there was no blinking LED. Debian system from DietPi has no problem booting, I wish DietPi images had a LUKS option.

I also tried converting the fully LUKSv2 partition to LUKSv1 to see if this was a problem, since the first article I saw was https://u-boot.org/blog/unlocking-disks … rint=print ; but I later found https://u-boot.org/blog/unlocking-moder … 2-support/ when digging through their blog, so this was not a problem by itself.