Hi,
I used “dietpi-drive-manager” to setup a nfs v4 share under the “/mnt/nfs_client”. I can mount it too on my macbook laptop using the following command
sudo mount -o resvport,vers=4 -t nfs dietpi.local:/ /Users/cmoullia/private/nfs
but the files displayed under the shared drive corresponds to UID which are unknown on my machine
ls -la /Users/cmoullia/private/nfs
total 56
drwxrwxr-x 8 1000 1000 4096 Dec 8 18:52 .
drwxr-xr-x 5 cmoullia staff 160 Nov 13 12:33 ..
drwxrwxr-x 2 1000 1000 4096 Dec 8 14:40 Music
drwxrwxr-x 2 1000 1000 4096 Dec 8 14:40 Pictures
drwxrwxr-x 2 1000 1000 4096 Dec 8 14:40 Video
drwxrwxr-x 2 1000 1000 4096 Dec 8 17:35 downloads
drwxr-xr-x 6 110 117 4096 Dec 8 18:57 grafana
drwxr-xr-x 6 998 998 4096 Dec 8 15:53 node-red
I can only copy files using sudo/root on mac. Is there a way to avoid to use “sudo” to copy files ?
Cheers
Charles
Please check out the explanation in the mount man page: https://manpages.debian.org/bullseye/mount/mount.8.en.html#Non-superuser_mounts
Hence in /etc/fstab, add the ,user to the mount options, then I probably sudo systemctl daemon-reload is required to reload it. Then try again as unprivileged user.
… ah wait, I think I misunderstood, you want to mount it as unprivileged user on macOS. Generally since it is UNIX as well, the same may work on macOS as well, but not sure. But this is not something that can be controlled server-wise, instead it needs to be configured on the client system (macOS).
… ah and misunderstood another thing 
, not mounting the drive as unprivileged user is the issue, but writing files in the mount point. Try to change the mode either on the server or on macOS (as root): sudo chmod -R 0777 /Users/cmoullia/private/nfs
You can also change the owner:group, sudo chown -R root:root /Users/cmoullia/private/nfs
With 0777 mode the owner doesn’t matter, but root is assured to be UID 0 and GID on both systems, with every other user it is possible that it doesn’t exist on one end. As alternative you can create the macOS user at the server with the same UID, like: useradd -u 1234 cmoullia
Many thanks. I will check/review what you reported.
Instead of using NFS, I should perhaps use samba as we dont have by default this problem
- Macbook
On the mac machine where a samba shaed drive is mounted, files appear using my user cmoullia and group staff
ls -la /Volumes/pi-music/
total 200
drwx------ 1 cmoullia staff 16384 Dec 9 07:16 .
drwxr-xr-x 4 root wheel 128 Dec 9 07:11 ..
-rwx------@ 1 cmoullia staff 12292 Dec 9 07:21 .DS_Store
-rwx------ 1 cmoullia staff 4096 Dec 9 07:16 ._.DS_Store
drwx------ 1 cmoullia staff 16384 Oct 21 12:26 Marillion
drwx------ 1 cmoullia staff 16384 Oct 21 09:46 Metallica
drwx------ 1 cmoullia staff 16384 Oct 22 09:00 Queensrÿche
- RockPro64
On the RockPro64 DietPi box, files are owned by dietpi and group dietpi
root@DietPi:/media/dabou/Music# ls -la
total 24
drwxr-xr-x 6 dietpi dietpi 4096 Dec 9 07:16 .
drwxr-xr-x 9 dietpi dietpi 4096 Dec 8 19:02 ..
drwxrwxr-x 6 dietpi dietpi 4096 Oct 21 12:26 Marillion
drwxrwxr-x 5 dietpi dietpi 4096 Oct 21 09:46 Metallica
drwxrwxr-x 4 dietpi dietpi 4096 Oct 22 09:00 Queensrÿche
Samba cfg
[pi-music]
comment = Pi Music Share
path = /media/dabou/Music
browseable = yes
create mask = 0664
directory mask = 0775
valid users = dietpi
writeable = yes
yes files show up as user dietpi on Samba server side becuase this is the user you use to login to Samba server.
valid users = dietpi
Jep, generally other than NFS, Samba does not sync any metadata, so permissions, owner etc depends on the server config server-side, and client config client-side only.