/dev/full
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In Linux, FreeBSD, and NetBSD, /dev/full, or the always-full device,[1][2] is a special file that always returns the error code ENOSPC (meaning "No space left on device") on writing, and provides an infinite number of zero bytes to any process that reads from it (similar to /dev/zero). This device is usually used when testing the behaviour of a program when it encounters a "disk full" error.
$ echo "Hello, World" > /dev/full
bash: echo: write error: No space left on device
History
[edit | edit source]Support for the always-full device in Linux is documented as early as 2007.[2] Native support was added to FreeBSD in the 11.0 release in 2016,[3] which had previously supported it through an optional module called lindev.[3][4] The full device appeared in NetBSD 8.[5]
See also
[edit | edit source]- /dev
- /dev/null
- /dev/zero
- Fault injection
- /dev/mordor in 9front
References
[edit | edit source]- ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
- ^ a b Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
- ^ a b Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
- ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
- ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
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