I do have two RPI's (RPI1 and RPI3)
I conclude this because I do try to mount this RPI1 to RPI3 in /etc/fstab. at RPI1 sometimes mounting is not working.
Also df -h gives then no results (not able to show df -h because the mounting is not made??)
I have to break the df -h command with CTRL-C
sudo mount -a is also not working
If I do start the nfs kernel at RPI3 by the command :
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sudo /etc/init.d/nfs-kernel-server restart
The strangepart is that the command: sudo systemctl status nfs-kernel-server on RPI3 says it is running:
Even before restarting. But I still have to restart it to make it running properly for RPI1 to mount.
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sudo systemctl status nfs-kernel-server
● nfs-kernel-server.service - LSB: Kernel NFS server support
Loaded: loaded (/etc/init.d/nfs-kernel-server)
Active: active (exited) since wo 2016-11-23 21:51:29 CET; 1min 50s ago
nov 23 21:51:28 raspberrypi-3 systemd[1]: Starting LSB: Kernel NFS server support...
nov 23 21:51:29 raspberrypi-3 nfs-kernel-server[529]: Exporting directories for NFS kernel daemon...exportfs: No options for /home/ewh 192.168.2.202: suggest 192.168.2.202(sync) to avoid warning
nov 23 21:51:29 raspberrypi-3 nfs-kernel-server[529]: exportfs: /etc/exports [1]: Neither 'subtree_check' or 'no_subtree_check' specified for export "192.168.2.202:/home/ewh".
nov 23 21:51:29 raspberrypi-3 nfs-kernel-server[529]: Assuming default behaviour ('no_subtree_check').
nov 23 21:51:29 raspberrypi-3 nfs-kernel-server[529]: NOTE: this default has changed since nfs-utils version 1.0.x
nov 23 21:51:29 raspberrypi-3 nfs-kernel-server[529]: .
nov 23 21:51:29 raspberrypi-3 nfs-kernel-server[529]: Starting NFS kernel daemon: nfsd
nov 23 21:51:29 raspberrypi-3 nfs-kernel-server[529]: Not starting: portmapper is not running ... (warning).
nov 23 21:51:29 raspberrypi-3 systemd[1]: Started LSB: Kernel NFS server support.