User-mode Linux: Difference between revisions

Revision as of 14:22, 24 June 2022

Revision as of 16:45, 8 March 2023

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| website = {{URL|http://user-mode-linux.sourceforge.net/}}

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'''User-mode Linux''' ('''UML''') is an architectural [[porting|port]] of the [[Linux kernel]] to its own [[system call]] interface, which enables multiple virtual [[Linux kernel]]-based operating systems (known as guests) to run as an application within a normal Linux system (known as the host). A Linux kernel compiled for the ''um'' architecture can then boot as a process under another Linux kernel, entirely in [[user space]], without affecting the host environment's configuration or stability.

As each guest is just a normal application running as a process in [[user space]], this approach provides the user with a way of running multiple virtual Linux machines on a single piece of hardware, offering some isolation, generally without affecting the host environment's configuration or stability.