NAME

       setup - setup devices and filesystems, mount root filesystem

SYNOPSIS

       #include <unistd.h>

       int setup(void);

DESCRIPTION

       setup()  is called once from within linux/init/main.c.  It calls initialization functions for devices and
       filesystems configured into the kernel and then mounts the root filesystem.

       No user process may call setup().  Any user process, even  a  process  with  superuser  permission,  will
       receive EPERM.

RETURN VALUE

       setup() always returns -1 for a user process.

ERRORS

       EPERM  Always, for a user process.

VERSIONS

       Since Linux 2.1.121, no such function exists anymore.

CONFORMING TO

       This function is Linux-specific, and should not be used in programs intended to be portable, or indeed in
       any programs at all.

NOTES

       The calling sequence varied: at some times setup() has had a single  argument  void *BIOS  and  at  other
       times a single argument int magic.

COLOPHON

       This  page  is  part  of  release  5.10  of  the  Linux man-pages project.  A description of the project,
       information  about  reporting  bugs,  and  the  latest  version  of  this   page,   can   be   found   at
       https://www.kernel.org/doc/man-pages/.