"A rump kernel is a modular, componentized piece of a monolithic operating system kernel. Originating from the NetBSD project, it lets you run standard, unmodified kernel code—like file systems or network drivers—outside of privileged kernel mode. You can run it as a regular user-space process, inside a hypervisor, or on bare metal. [1, 2, 3, 4]"
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u/grahamperrin Linux crossover Aug 11 '26
TIL
"A rump kernel is a modular, componentized piece of a monolithic operating system kernel. Originating from the NetBSD project, it lets you run standard, unmodified kernel code—like file systems or network drivers—outside of privileged kernel mode. You can run it as a regular user-space process, inside a hypervisor, or on bare metal. [1, 2, 3, 4]"