Anyone have experience building NetBSD specifically for embedded devices?
I got this Risc-V tablet here, and it has some issues. It came a few weeks ago with Debian Bullseye installed. I am comfortable with Debian, but Bullseye was two releases ago, and even worse it is pinned to a 2021 snapshot. So, software are missing all those vital security patches. Firefox can't even install current extensions, because it is too out of date. I tried upgrading it to Sid three times, but each time the superblocks in the file system become corrupted. So now I am updating it to a 2023 snapshot, but still, that was two years ago, and the superblocks might still get corrupted in the process.
I was thinking about starting fresh with a NetBSD install, but it appears a custom kernel is going to be needed before that can happen. The Manufacturer put's out their own custom Linux kernel, and I imagine it includes some hardware specific modules, so everything is compatible. I also would like to incorporate a file system like F2FS or NilFS, one designed purposefully around embedded devices which operate off of EMMC drives.
It can't be that difficult to accomplish, having built NetBSD and OpenBSD a few times. If it is, I might just throw the tablet on Ebay and start over.