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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/.