Chapter 2. Using the mount Command

download PDF
On Linux, UNIX, and similar operating systems, file systems on different partitions and removable devices like CDs, DVDs, or USB flash drives can be attached to a certain point (that is, the mount point) in the directory tree, and detached again. To attach or detach a file system, you can use the mount or umount command respectively. This chapter describes the basic usage of these commands, and covers some advanced topics such as moving a mount point or creating shared subtrees.

2.1. Listing Currently Mounted File Systems

To display all currently attached file systems, run the mount command with no additional arguments:
This command displays the list of known mount points. Each line provides important information about the device name, the file system type, the directory in which it is mounted, and relevant mount options in the following form:
device on directory type type (options)
By default, the output includes various virtual file systems such as sysfs, tmpfs, and others. To display only the devices with a certain file system type, supply the -t option on the command line:
mount -t type
For a list of common file system types, refer to Table 2.1, “Common File System Types”. For an example on how to use the mount command to list the mounted file systems, see Example 2.1, “Listing Currently Mounted ext3 File Systems”.

Example 2.1. Listing Currently Mounted ext3 File Systems

Usually, both / and /boot partitions are formatted to use ext3. To display only the mount points that use this file system, type the following at a shell prompt:
~]$ mount -t ext3
/dev/mapper/VolGroup00-LogVol00 on / type ext3 (rw)
/dev/vda1 on /boot type ext3 (rw)
Red Hat logoGithubRedditYoutubeTwitter


Try, buy, & sell


About Red Hat Documentation

We help Red Hat users innovate and achieve their goals with our products and services with content they can trust.

Making open source more inclusive

Red Hat is committed to replacing problematic language in our code, documentation, and web properties. For more details, see the Red Hat Blog.

About Red Hat

We deliver hardened solutions that make it easier for enterprises to work across platforms and environments, from the core datacenter to the network edge.

© 2024 Red Hat, Inc.