Rock64 no longer boots after dist-upgrade

[evilbunny]

mmcblk1 = sdcard
mmcblk0 = emmc

So am I right in saying it mounts the wrong efi by default?

That happens because images use the same partition titles, you could try changing the fstab to which ever device you want mounted.

Everything is working as before except for openvpn which can't initiate a connection anymore
ERROR: Cannot open TUN/TAP dev /dev/net/tun: No such file or directory (errno=2)

try apt-get --reinstall install openvpn

If that doesn't work, it may be your openvpn config loading from the wrong partition