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Command: rumpfs | Section: 4 | Source: NetBSD | File: rumpfs.4
RUMPFS(4) FreeBSD Kernel Interfaces Manual RUMPFS(4)
NAME
rumpfs - rump kernel root file system
LIBRARY
rump kernel (librumpvfs, -lrumpvfs)
DESCRIPTION
rumpfs is a simple in-memory file system for rump kernels. It is
automatically mounted as the root file system of a rump kernel at boot
time, provided that the VFS faction is configured into the rump kernel
instance.
The three main features of rumpfs are:
1. providing a hook for accessing host files via the rump_etfs(3)
interfaces.
2. supporting enough of file and directory interfaces to
facilitate simple operations such as hosting config files or
creating mount points.
3. being small and lightweight so as to keep a barebones rump
kernel lightweight.
rumpfs is not intended for hosting large files or big directory
hierarchies. If faced with such a use case, mounting a tmpfs file system
inside the rump kernel is recommended.
SEE ALSO
rump(3)
HISTORY
rumpfs first appeared in NetBSD 6.0.
FreeBSD 14.1-RELEASE-p8 March 3, 2014 FreeBSD 14.1-RELEASE-p8