UnionFS

from Wikipedia, the free encyclopedia

UnionFS is a file system originally developed for the Plan 9 operating system. It was used to assign processes to their own namespaces within the file systems.

Using UnionFS, the files of different file systems are combined into a single logical file system, i. H. Files that are in the same directory in the separate file systems are displayed in the same directory by UnionFS. Priorities are assigned to the individual hierarchies involved so that a clear assignment is guaranteed even if the file names are the same.

A current application is the overlay of write-protected file systems with RAM disks , similar to the functionally similar OverlayFS . This enables Live CD users to change local files.

UnionFS was implemented for Linux as well as for various BSD variants and is used, for example, for Live CDs from Damn Small Linux and for the Linux variant of the Asus Eee PC .

See also

Web links