Kernfs (BSD): Difference between revisions
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| url = http://netbsd.gw.com/cgi-bin/man-cgi?mount_kernfs+8+NetBSD-6.0+i386 |
| url = http://netbsd.gw.com/cgi-bin/man-cgi?mount_kernfs+8+NetBSD-6.0+i386 |
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| title = mount_kernfs(8) – mount the /kern file system |
| title = mount_kernfs(8) – mount the /kern file system |
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| date = September 8, 2003 |
| date = September 8, 2003 |
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| access-date = March 24, 2015 |
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| website = netbsd.gw.com |
| website = netbsd.gw.com |
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| archive-date = September 13, 2016 |
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| archive-url = https://web.archive.org/web/20160913165743/http://netbsd.gw.com/cgi-bin/man-cgi?mount_kernfs+8+NetBSD-6.0+i386 |
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== See also == |
== See also == |
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Latest revision as of 10:24, 5 May 2023
In the Berkeley Software Distribution (BSD) and its descendants, kernfs is a pseudo file system that provides access to information on the currently running kernel. The file system itself and its content are dynamically generated when the operating system is booted, and the kernfs is often mounted at the /kern directory.[1][2] As a result of its nature, kernfs does not consist of actual files on a storage device, allowing instead processes to retrieve system information by accessing virtual files.[3]
kernfs first appeared in 4.4BSD,[1] and NetBSD 6.0 continues to use kernfs by default while mounting it at the canonical /kern mount point.[4]
See also
[edit]
- procfs – a special file system in Unix-like operating systems that presents information about processes and other system information
- tmpfs – a common name for a temporary file storage facility on many Unix-like operating systems
References
[edit]- ^ a b "kernfs(5) – kernel file system". gsp.com. December 14, 1996. Archived from the original on September 28, 2007. Retrieved May 6, 2014.
- ^ "Rewrite kernfs and procfs". netbsd.org. September 8, 2014. Retrieved March 24, 2015.
- ^ Joshua Train; Joseph D. Touch; Lars Eggert; Yu-Shun Wang (December 9, 2003). "NetFS: Networking through the File System, Section 6.1 Procfs and Kernfs" (PDF). isi.edu. p. 8. Archived from the original (PDF) on July 5, 2017. Retrieved July 4, 2016.
- ^ "mount_kernfs(8) – mount the /kern file system". netbsd.gw.com. September 8, 2003. Archived from the original on September 13, 2016. Retrieved March 24, 2015.
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