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NAME

       setup - setup devices and file systems, mount root file system

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 file systems configured into the kernel and  then  mounts  the  root  file
       system.

       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 3.35 of the Linux man-pages project.  A  description  of  the
       project,  and information about reporting bugs, can be found at http://man7.org/linux/man-
       pages/.