---
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.
## 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.

## Syntax

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

## 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
    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