# phpman > info > full

[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 cre-
       ated 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)