```
May 21 21:53:26 rpc.idmapd[21345]: main: fcntl(/run/rpc_pipefs/nfs): Invalid argument
May 21 21:53:26 systemd[1]: nfs-idmapd.service: Control process exited, code=exited, status=1/FAILURE
```
The rpc.idmapd version in Debian is still ancient (as with many things in debian) and still requires dnotify but the armbian kernel for
the orange pi 5 build
```
$ grep -i dnotify /boot/config-5.10.110-rockchip-rk3588
# CONFIG_DNOTIFY is not set
```
It looks like bookworm will likely fix this when it's out, so maybe the right thing to do is simply move to bookworm asap but this does prevent the ability to fully support nfsv4 with armbian's debian builds.
