Mount an NFS share.
First, create an NFS Share on your host
With OMV for example.
## Installing NFS Client Packages
To mount an NFS share on a Linux system first you’ll need to install the NFS client package. The package name differs between Linux distributions.
Installing NFS client on Ubuntu and Debian:
sudo apt update
sudo apt install nfs-common
Manually Mounting an NFS File Systems
Mounting a remote NFS share is the same as mounting regular file systems.
To mount an NFS file system on a given mount point, use the mount command in the following form:
```bash mount [OPTION...] NFS_SERVER:EXPORTED_DIRECTORY MOUNT_POINT ```
Use the steps below to manually mount a remote NFS share on your Linux system:
-
First, create a directory to serve as the mount point for the remote NFS share:
sudo mkdir /mnt/OrbiterVideo
Mount point is a directory on the local machine where the NFS share is to be mounted.
Where orbiter is the LAN Name of the NFS server, /Video is the directory that the server is exporting and /mnt/OrbiterVideo is the local mount point.
Can be with IP adress
``` sudo mount -t nfs 10.10.0.10:/Video /mnt/OrbiterVideo ```
Automatically Mounting NFS File Systems with /etc/fstab
nano /etc/fstab
Add line
orbiter:/Video /mnt/OrbiterVideo nfs defaults 0 0
Unmounting NFS File Systems
The umount command detaches (unmounts) the mounted file system from the directory tree.
To detach a mounted NFS share, use the umount command followed by either the directory where it has been mounted or remote share:
umount orbiter:/Video
#or
umount /mnt/OrbiterVideo
Permission problems ?
sudo chown -R root:root path/to/Video
sudo chmod -R 755 path/to/Video
Extensive explications from ChatGPT
To address this "Permission denied" error, let’s go through a few key steps to ensure your NFS share is correctly configured for root-level access between your two Debian machines.
Steps to Resolve "Permission Denied" Error:
1. Verify NFS Export Permissions on the Server Side On the NFS server (the machine hosting the /Video folder), make sure the directory is exported with the correct permissions in /etc/exports. Add or update the relevant line in /etc/exports to ensure the client machine has both read and write permissions and that root squashing is disabled.
/Video *(rw,no_root_squash,sync)
- rw: Allows read and write access.
- no_root_squash: Allows the root user on the client to maintain root privileges on the share.
- sync: Ensures changes are committed to disk before reporting success. After updating
/etc/exports, apply the changes by running:
sudo exportfs -ra
2. Restart the NFS Service Restart the NFS server to apply any configuration changes:
sudo systemctl restart nfs-kernel-server
3. Mount the NFS Share on the Client Side Ensure the client machine mounts the NFS share with the correct permissions. Since an entry was added in /etc/fstab, remount it with:
sudo mount -a
Alternatively, mount manually for testing:
sudo mount -t nfs orbiter:/Video /mnt/OrbiterVideo
4. Check Ownership and Permissions on the NFS Share On the NFS server, ensure that the /Video directory has permissions allowing the root user on the client to write to it.
sudo chown -R root:root /Video
sudo chmod -R 755 /Video # Adjust permissions as needed
5. Test File Creation After mounting, try creating a file in /mnt/OrbiterVideo on the client as the root user:
sudo touch /mnt/OrbiterVideo/testfile
Additional Troubleshooting Tips
- If permission issues persist, re-check
root_squashsettings and permissions on the/Videodirectory. - Ensure both machines synchronize UID/GID settings if user-level permissions are required.