full(4)

full4

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

Overview

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

Releases

16 releases since Debian 2.0 (Hamm); the text changed 14 times.

  1. 2.0–2.1
  2. 2.2
  3. 3.0
  4. 3.1
  5. 4.0
  6. 5.0
  7. 6.0
  8. 7
  9. 8
  10. 9
  11. 10
  12. 11
  13. 12
  14. 13
  15. Arch

From man-pages 6.19-1 in Arch Linux 2026-11-01. Parsed by carta from the page's man source.