Vagrant error: NFS is reporting that your exports file is invalid

Question

I am trying to set up the Discourse development environment using these instructions. However when I run Vagrant I get the error:

NFS is reporting that your exports file is invalid. Vagrant does this check before making any changes to the file. Please correct the issues below and execute "vagrant reload":

Can't open /etc/exports

I checked, and I don't have an etc/exports folder, so I created one and ran vagrant reload. This got me:

/Applications/Vagrant/embedded/gems/gems/vagrant-1.4.1/plugins/hosts/bsd/host.rb:146:in read': Is a directory - /etc/exports (Errno::EISDIR) from /Applications/Vagrant/embedded/gems/gems/vagrant-1.4.1/plugins/hosts/bsd/host.rb:146:innfs_prune' from /Applications/Vagrant/embedded/gems/gems/vagrant-1.4.1/plugins/synced_folders/nfs/synced_folder.rb:68:in cleanup' from /Applications/Vagrant/embedded/gems/gems/vagrant-1.4.1/lib/vagrant/action/builtin/synced_folder_cleanup.rb:24:inblock in call' from /Applications/Vagrant/embedded/gems/gems/vagrant-1.4.1/lib/vagrant/action/builtin/synced_folder_cleanup.rb:22:in each_key' from /Applications/Vagrant/embedded/gems/gems/vagrant-1.4.1/lib/vagrant/action/builtin/synced_folder_cleanup.rb:22:incall' from /Applications/Vagrant/embedded/gems/gems/vagrant-1.4.1/lib/vagrant/action/warden.rb:34:in call' from /Applications/Vagrant/embedded/gems/gems/vagrant-1.4.1/plugins/providers/virtualbox/action/prepare_nfs_valid_ids.rb:12:incall' from /Applications/Vagrant/embedded/gems/gems/vagrant-1.4.1/lib/vagrant/action/warden.rb:34:in call' from /Applications/Vagrant/embedded/gems/gems/vagrant-1.4.1/lib/vagrant/action/builtin/handle_forwarded_port_collisions.rb:118:incall' from /Applications/Vagrant/embedded/gems/gems/vagrant-1.4.1/lib/vagrant/action/warden.rb:34:in call' from /Applications/Vagrant/embedded/gems/gems/vagrant-1.4.1/plugins/providers/virtualbox/action/prepare_forwarded_port_collision_params.rb:30:incall' from /Applications/Vagrant/embedded/gems/gems/vagrant-1.4.1/lib/vagrant/action/warden.rb:34:in call' from /Applications/Vagrant/embedded/gems/gems/vagrant-1.4.1/lib/vagrant/action/builtin/env_set.rb:19:incall' from /Applications/Vagrant/embedded/gems/gems/vagrant-1.4.1/lib/vagrant/action/warden.rb:34:in call' from /Applications/Vagrant/embedded/gems/gems/vagrant-1.4.1/lib/vagrant/action/builtin/provision.rb:52:incall' from /Applications/Vagrant/embedded/gems/gems/vagrant-1.4.1/lib/vagrant/action/warden.rb:34:in call' from /Applications/Vagrant/embedded/gems/gems/vagrant-1.4.1/plugins/providers/virtualbox/action/clear_forwarded_ports.rb:13:incall' from /Applications/Vagrant/embedded/gems/gems/vagrant-1.4.1/lib/vagrant/action/warden.rb:34:in call' from /Applications/Vagrant/embedded/gems/gems/vagrant-1.4.1/plugins/providers/virtualbox/action/set_name.rb:19:incall' from /Applications/Vagrant/embedded/gems/gems/vagrant-1.4.1/lib/vagrant/action/warden.rb:34:in call' from /Applications/Vagrant/embedded/gems/gems/vagrant-1.4.1/plugins/providers/virtualbox/action/clean_machine_folder.rb:17:incall' from /Applications/Vagrant/embedded/gems/gems/vagrant-1.4.1/lib/vagrant/action/warden.rb:34:in call' from /Applications/Vagrant/embedded/gems/gems/vagrant-1.4.1/plugins/providers/virtualbox/action/check_accessible.rb:18:incall' from /Applications/Vagrant/embedded/gems/gems/vagrant-1.4.1/lib/vagrant/action/warden.rb:34:in call' from /Applications/Vagrant/embedded/gems/gems/vagrant-1.4.1/lib/vagrant/action/warden.rb:95:inblock in finalize_action' from /Applications/Vagrant/embedded/gems/gems/vagrant-1.4.1/lib/vagrant/action/warden.rb:34:in call' from /Applications/Vagrant/embedded/gems/gems/vagrant-1.4.1/lib/vagrant/action/warden.rb:34:incall' from /Applications/Vagrant/embedded/gems/gems/vagrant-1.4.1/lib/vagrant/action/builder.rb:116:in call' from /Applications/Vagrant/embedded/gems/gems/vagrant-1.4.1/lib/vagrant/action/runner.rb:69:inblock in run' from /Applications/Vagrant/embedded/gems/gems/vagrant-1.4.1/lib/vagrant/util/busy.rb:19:in busy' from /Applications/Vagrant/embedded/gems/gems/vagrant-1.4.1/lib/vagrant/action/runner.rb:69:inrun' from /Applications/Vagrant/embedded/gems/gems/vagrant-1.4.1/lib/vagrant/action/builtin/call.rb:51:in call' from /Applications/Vagrant/embedded/gems/gems/vagrant-1.4.1/lib/vagrant/action/warden.rb:34:incall' from /Applications/Vagrant/embedded/gems/gems/vagrant-1.4.1/lib/vagrant/action/warden.rb:95:in block in finalize_action' from /Applications/Vagrant/embedded/gems/gems/vagrant-1.4.1/lib/vagrant/action/warden.rb:34:incall' from /Applications/Vagrant/embedded/gems/gems/vagrant-1.4.1/lib/vagrant/action/warden.rb:34:in call' from /Applications/Vagrant/embedded/gems/gems/vagrant-1.4.1/lib/vagrant/action/builder.rb:116:incall' from /Applications/Vagrant/embedded/gems/gems/vagrant-1.4.1/lib/vagrant/action/runner.rb:69:in block in run' from /Applications/Vagrant/embedded/gems/gems/vagrant-1.4.1/lib/vagrant/util/busy.rb:19:inbusy' from /Applications/Vagrant/embedded/gems/gems/vagrant-1.4.1/lib/vagrant/action/runner.rb:69:in run' from /Applications/Vagrant/embedded/gems/gems/vagrant-1.4.1/lib/vagrant/action/builtin/call.rb:51:incall' from /Applications/Vagrant/embedded/gems/gems/vagrant-1.4.1/lib/vagrant/action/warden.rb:34:in call' from /Applications/Vagrant/embedded/gems/gems/vagrant-1.4.1/lib/vagrant/action/warden.rb:95:inblock in finalize_action' from /Applications/Vagrant/embedded/gems/gems/vagrant-1.4.1/lib/vagrant/action/warden.rb:34:in call' from /Applications/Vagrant/embedded/gems/gems/vagrant-1.4.1/lib/vagrant/action/warden.rb:34:incall' from /Applications/Vagrant/embedded/gems/gems/vagrant-1.4.1/lib/vagrant/action/builder.rb:116:in call' from /Applications/Vagrant/embedded/gems/gems/vagrant-1.4.1/lib/vagrant/action/runner.rb:69:inblock in run' from /Applications/Vagrant/embedded/gems/gems/vagrant-1.4.1/lib/vagrant/util/busy.rb:19:in busy' from /Applications/Vagrant/embedded/gems/gems/vagrant-1.4.1/lib/vagrant/action/runner.rb:69:inrun' from /Applications/Vagrant/embedded/gems/gems/vagrant-1.4.1/lib/vagrant/action/builtin/call.rb:51:in call' from /Applications/Vagrant/embedded/gems/gems/vagrant-1.4.1/lib/vagrant/action/warden.rb:34:incall' from /Applications/Vagrant/embedded/gems/gems/vagrant-1.4.1/lib/vagrant/action/builtin/config_validate.rb:25:in call' from /Applications/Vagrant/embedded/gems/gems/vagrant-1.4.1/lib/vagrant/action/warden.rb:34:incall' from /Applications/Vagrant/embedded/gems/gems/vagrant-1.4.1/plugins/providers/virtualbox/action/check_virtualbox.rb:17:in call' from /Applications/Vagrant/embedded/gems/gems/vagrant-1.4.1/lib/vagrant/action/warden.rb:34:incall' from /Applications/Vagrant/embedded/gems/gems/vagrant-1.4.1/lib/vagrant/action/builtin/call.rb:57:in call' from /Applications/Vagrant/embedded/gems/gems/vagrant-1.4.1/lib/vagrant/action/warden.rb:34:incall' from /Applications/Vagrant/embedded/gems/gems/vagrant-1.4.1/plugins/providers/virtualbox/action/check_virtualbox.rb:17:in call' from /Applications/Vagrant/embedded/gems/gems/vagrant-1.4.1/lib/vagrant/action/warden.rb:34:incall' from /Applications/Vagrant/embedded/gems/gems/vagrant-1.4.1/lib/vagrant/action/builtin/config_validate.rb:25:in call' from /Applications/Vagrant/embedded/gems/gems/vagrant-1.4.1/lib/vagrant/action/warden.rb:34:incall' from /Applications/Vagrant/embedded/gems/gems/vagrant-1.4.1/lib/vagrant/action/warden.rb:95:in block in finalize_action' from /Applications/Vagrant/embedded/gems/gems/vagrant-1.4.1/lib/vagrant/action/warden.rb:34:incall' from /Applications/Vagrant/embedded/gems/gems/vagrant-1.4.1/lib/vagrant/action/warden.rb:34:in call' from /Applications/Vagrant/embedded/gems/gems/vagrant-1.4.1/lib/vagrant/action/builder.rb:116:incall' from /Applications/Vagrant/embedded/gems/gems/vagrant-1.4.1/lib/vagrant/action/runner.rb:69:in block in run' from /Applications/Vagrant/embedded/gems/gems/vagrant-1.4.1/lib/vagrant/util/busy.rb:19:inbusy' from /Applications/Vagrant/embedded/gems/gems/vagrant-1.4.1/lib/vagrant/action/runner.rb:69:in run' from /Applications/Vagrant/embedded/gems/gems/vagrant-1.4.1/lib/vagrant/action/builtin/call.rb:51:incall' from /Applications/Vagrant/embedded/gems/gems/vagrant-1.4.1/lib/vagrant/action/warden.rb:34:in call' from /Applications/Vagrant/embedded/gems/gems/vagrant-1.4.1/plugins/providers/virtualbox/action/check_virtualbox.rb:17:incall' from /Applications/Vagrant/embedded/gems/gems/vagrant-1.4.1/lib/vagrant/action/warden.rb:34:in call' from /Applications/Vagrant/embedded/gems/gems/vagrant-1.4.1/lib/vagrant/action/builder.rb:116:incall' from /Applications/Vagrant/embedded/gems/gems/vagrant-1.4.1/lib/vagrant/action/runner.rb:69:in block in run' from /Applications/Vagrant/embedded/gems/gems/vagrant-1.4.1/lib/vagrant/util/busy.rb:19:inbusy' from /Applications/Vagrant/embedded/gems/gems/vagrant-1.4.1/lib/vagrant/action/runner.rb:69:in run' from /Applications/Vagrant/embedded/gems/gems/vagrant-1.4.1/lib/vagrant/machine.rb:147:inaction' from /Applications/Vagrant/embedded/gems/gems/vagrant-1.4.1/plugins/commands/reload/command.rb:37:in block in execute' from /Applications/Vagrant/embedded/gems/gems/vagrant-1.4.1/lib/vagrant/plugin/v2/command.rb:193:inblock in with_target_vms' from /Applications/Vagrant/embedded/gems/gems/vagrant-1.4.1/lib/vagrant/plugin/v2/command.rb:191:in each' from /Applications/Vagrant/embedded/gems/gems/vagrant-1.4.1/lib/vagrant/plugin/v2/command.rb:191:inwith_target_vms' from /Applications/Vagrant/embedded/gems/gems/vagrant-1.4.1/plugins/commands/reload/command.rb:36:in execute' from /Applications/Vagrant/embedded/gems/gems/vagrant-1.4.1/lib/vagrant/cli.rb:38:inexecute' from /Applications/Vagrant/embedded/gems/gems/vagrant-1.4.1/lib/vagrant/environment.rb:484:in cli' from /Applications/Vagrant/embedded/gems/gems/vagrant-1.4.1/bin/vagrant:127:in' from /Applications/Vagrant/bin/../embedded/gems/bin/vagrant:23:in load' from /Applications/Vagrant/bin/../embedded/gems/bin/vagrant:23:in'

I am on a Mac (OS X 10.6.8). How do I fix this? I tried searching for the original error message, and all I found was a few repositories containing the Vagrant source code that throws it.

Answer 1

I had some previous images/boxes installed in my VirtualBox installation, so there were a few invalid entries in /etc/exports already. So I had to clean up that file and restart my Vagrant box.

NFS is reporting that your exports file is invalid. Vagrant does this check before making any changes to the file. Please correct the issues below and execute "vagrant reload": 

Here's what I did on my host machine:

sudo rm /etc/exports sudo touch /etc/exports  vagrant halt vagrant up --provision