Article · Wikipedia archive · Last revised May 30, 2026

Configfs

Configfs is a RAM-based virtual file system provided by the 2.6 Linux kernel.

Last revised
May 30, 2026
Read time
≈ 1 min
Length
143 w
Citations
2
Source
Wikipedia ↗

Configfs is a RAM-based virtual file system provided by the 2.6 Linux kernel.1

Details

Configfs appears similar to sysfs but they are in fact different and complementary. Configfs is for creating, managing and destroying kernel objects from user-space, and sysfs for viewing and manipulating objects from user-space which are created and destroyed by kernel space.2 It is typically mounted at /sys/kernel/config (or more rarely at /config).

See also

See also

  • tmpfs
  • sysctl – an interface for examining and dynamically changing parameters in the BSD and Linux operating systems
References

References

  1. "Linux Kernel Documentation / filesystems / configfs". mjmwired.net. Archived from the original on 21 June 2016. Retrieved 3 April 2025.
  2. "Configfs - an introduction [LWN.net]". lwn.net. Retrieved 3 April 2025.
External links