Vagrant NFS "suddenly" not working

I’ve been using Vagrant for many years so not a newbie but this has me stumped.

Host: Ubuntu 20.04
Vagrant: 2.3.7
Oracle VM Manager
Box (various tried)

I’ve been through a lot of options but now come down to this:

Nmap scan report for Pegasus (
Host is up (0.00018s latency).
Not shown: 994 closed ports
22/tcp   open  ssh
80/tcp   open  http
111/tcp  open  rpcbind
2049/tcp open  nfs
5432/tcp open  postgresql
8080/tcp open  http-proxy

But this is the VM i/p:

Nmap scan report for xxx.test (
Host is up (0.00031s latency).
Not shown: 998 closed ports
22/tcp  open  ssh
111/tcp open  rpcbind

So it’s no surprise I’m getting nothing (as far as I understand it anyway, which is not very far, this is not my area).

Vagrant is at least supposed to set up NFS in both host and client, and claims everything is fine.

In the host we have:

$ systemctl status nfs-server
● nfs-server.service - NFS server and services
     Loaded: loaded (/lib/systemd/system/nfs-server.service; enabled; vendor preset: enabled)
    Drop-In: /run/systemd/generator/nfs-server.service.d
     Active: active (exited) since Tue 2023-07-04 09:58:05 BST; 3h 48min ago
   Main PID: 1249 (code=exited, status=0/SUCCESS)
      Tasks: 0 (limit: 18716)
     Memory: 0B
     CGroup: /system.slice/nfs-server.service

Jul 04 09:58:04 Pegasus systemd[1]: Starting NFS server and services...
Jul 04 09:58:05 Pegasus systemd[1]: Finished NFS server and services.

And in the client we get:

$ systemctl status nfs-server
Unit nfs-server.service could not be found.

I’ve scoured the interwebs looking for clues but I have none.

Any pointers would be appreciated.

If NFS (Network File System) is suddenly not working with Vagrant, there are several potential reasons for this issue for australian lamb. Here are some steps to troubleshoot and resolve the problem:

1. Vagrant Version:

  • Ensure that you are using a compatible version of Vagrant that supports NFS. Check for updates and upgrade to the latest version if necessary.

2. NFS Server Installation:

  • Verify that the NFS server is installed on your host machine. Vagrant uses an NFS server to mount shared folders.
  • On Linux, you can install NFS server components using a package manager like apt or yum.