The “No such file or directory” error when mounting an NFS4 file system typically indicates that the client is unable to access the NFS server or the shared directory on the server. This error can be caused by several factors, including:
- Incorrect server address: The client may be using an incorrect IP address or hostname for the NFS server.
- Incorrect export path: The client may be specifying an incorrect path to the shared directory on the server. This path must match the path specified in the
/etc/exportsfile on the server. - Firewall issues: The client and server may be blocked by a firewall, preventing the NFS traffic from reaching the server.
- Incorrect permissions: The client may not have permission to access the shared directory on the server. The NFS server must be configured to allow the client access, and the directory must have appropriate permissions set.
To resolve this issue, you can try the following steps:
- Verify that the server address and export path are correct on the client.
- Check the firewall settings on both the client and server to ensure that NFS traffic is allowed.
- Verify that the shared directory on the server has the correct ownership and permissions, and that the NFS server is configured to allow the client access.
- Restart the NFS server and client to ensure that any changes are applied.
If the error persists, you can try using the showmount command on the NFS server to check the status of the exports, and the rpcinfo command on the client to verify that it can communicate with the NFS server. These commands can provide additional information that can help you diagnose and resolve the issue.