RAMFS(4) RAMFS(4)
NAME
ramfs - memory file system
SYNOPSIS
ramfs [ -i ] [ -s ] -m [ mountpoint ]
DESCRIPTION
Ramfs starts a process that mounts itself (see bind(2)) on
mountpoint (default /tmp). The ramfs process implements a
file tree rooted at dir, keeping all files in memory. Ini-
tially the file tree is empty.
The -i flag tells ramfs to use file descriptors 0 and 1 for
its communication channel rather than create a pipe. This
makes it possible to use ramfs as a file server on a remote
machine: the file descriptors 0 and 1 will be the network
channel from ramfs to the client machine. The -s flag
causes ramfs to post its channel on /srv/ramfs rather than
mounting it on mountpoint, enabling multiple clients to
access its files. However, it does not authenticate its
clients and its implementation of groups is simplistic, so
it should not be used for precious data.
This program is useful mainly as an example of how to write
a user-level file server. It can also be used to provide
high-performance temporary files.
SOURCE
/sys/src/cmd/ramfs.c
SEE ALSO
bind(2)
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