FULL(4) Linux Programmer's Manual FULL(4)
full - always full device
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
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.
mknod(1), null(4), zero(4)
This page is part of release 5.12 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)
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