# man > FULL(4)

[FULL(4)](https://www.chedong.com/phpMan.php/man/FULL/4/markdown)                               Linux Programmer's Manual                              [FULL(4)](https://www.chedong.com/phpMan.php/man/FULL/4/markdown)



## NAME
       full - always full device

## CONFIGURATION
       If  your system does not have _/dev/full_ created already, it can be created with the following
       commands:

           mknod -m 666 /dev/full c 1 7
           chown root:root /dev/full

## DESCRIPTION
       The file _/dev/full_ has major device number 1 and minor device number 7.

       Writes to the _/dev/full_ device fail with an **ENOSPC** error.  This can be used  to  test  how  a
       program handles disk-full errors.

       Reads from the _/dev/full_ device will return \0 characters.

       Seeks on _/dev/full_ will always succeed.

## FILES
       _/dev/full_

## SEE ALSO
       [**mknod**(1)](https://www.chedong.com/phpMan.php/man/mknod/1/markdown), [**null**(4)](https://www.chedong.com/phpMan.php/man/null/4/markdown), [**zero**(4)](https://www.chedong.com/phpMan.php/man/zero/4/markdown)

## COLOPHON
       This  page  is  part  of  release  5.10 of the Linux _man-pages_ project.  A description of the
       project, information about reporting bugs, and the latest version of this page, can be  found
       at <https://www.kernel.org/doc/man-pages/>.



Linux                                        2019-03-06                                      [FULL(4)](https://www.chedong.com/phpMan.php/man/FULL/4/markdown)