---
title: About the etc_fstab Resource
---

# etc_fstab

Use the `etc_fstab` InSpec audit resource to test information about all partitions and storage devices on a system.

<br>

## Syntax

An etc_fstab rule specifies a device name, its mount point, its mount type, the options its mounted with,
its dump options, and the order the files system should be checked.

Use the where clause to match a property to one or more rules in the fstab file.

    describe etc_fstab.where { device_name == 'value' } do
      its('mount_point') { should cmp 'hostname' }
      its('file_system_type') { should cmp 'list' }
      its('mount_options') { should cmp 'list' }
      its('dump_options') { should cmp 'list' }
      its('file_system_options') { should cmp 'list' }
    end

Use the optional constructor parameter to give an alternative path to fstab file

    describe etc_fstab(hosts_path).where { device_name == 'value' } do
      its('mount_point') { should cmp 'hostname' }
      its('file_system_type') { should cmp 'list' }
      its('mount_options') { should cmp 'list' }
      its('dump_options') { should cmp 'list' }
      its('file_system_options') { should cmp 'list ' }
    end

where

* `device_name` is the name associated with the device.
* `mount_point` is the directory at which the filesystem is configured to be mounted.
* `file_system_type` is the type of file system of the device or partition.
* `mount_options` is the options for the device or partition.
* `dump_options` is a number used by dump to decide if a file system should be backed up.
* `file_system_options` is a number that specifies the order the file system should be checked.

## Property Examples and Return Types

### device_name

`device_name` returns a string array of device names mounted on the system.

    describe etc_fstab.where { mount_point == '/mnt/sr0' } do
      its('device_name') { should cmp '/dev/sr0' }
    end

### mount_point

`mount_point` returns a string array of directorys at which filesystems are configured to be mounted.

    describe etc_fstab.where { device_name == '/dev/sr0' } do
      its('mount_point') { should cmp '/mnt/sr0' }
    end

### file_system_type

`file_system_type` returns a String array of each partitions file system type.

    describe etc_fstab.where { device_name == '/dev/sr0' } do
      its('file_system_type') { should cmp 'iso9660' }
    end

### mount_options

`mount_options` returns a two dimensional array of each partitions mount options.

    describe etc_fstab.where { mount_point == '/' } do
      its('mount_options') { should eq [['defaults', 'x-systemd.device-timeout=0']] }
    end

### dump_options

`dump_options` returns a integer array of each partitions dump option.

    describe etc_fstab.where { device_name == '/dev/sr0' } do
      its('dump_options') { should cmp 0 }
    end

### file_system_options

`file_system_options` returns a integer array of each partitions file system option.

    describe etc_fstab.where { device_name == '/dev/sr0' } do
      its('file_system_options') { should cmp 0 }
    end

<br>

## Examples

The following examples show how to use this InSpec resource.

### Check all partitions that have type of 'nfs'.

    nfs_systems = etc_fstab.nfs_file_systems.entries
    nfs_systems.each do |partition|
      describe partition do
        its('mount_options') { should include 'nosuid' }
      end
    end

### Check the partition mounted at /home contains 'nosuid' in its mount_options.

    describe etc_fstab do
      its('home_mount_options') { should include 'nosuid' }
    end

### Check if a partition is mounted at a point.

    describe etc_fstab.where { mount_point == '/home' } do
      it { should be_configured }
    end