FULL(4) Linux Programmers Manual FULL(4)
full - always full device
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
File /dev/full has major device number 1 and minor device number 7.
Writes to the /dev/full device will 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.
mknod(1), null(4), zero(4)
This page is part of release 3.05 of the Linux man-pages project. A
description of the project, and information about reporting bugs, can
be found at http://www.kernel.org/doc/man-pages/.
Linux 2007-11-24 FULL(4)