Hi!

Sorry you feel neglected, maybe people have just not noticed your question.

I'd suggest you format your sd card as ext4, btrfs works of course too but might be an overkill (and regarding the fact that some people have all kinds of problems with their root as btrfs mit might be better for stability to have it as ext4fs...)

As for your partitions, if you don't have mmcblk1p1 what does your card show up as?