[MAN] setup

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SETUP

Section: Linux Programmer's Manual (2)
Updated: 2008-12-03
Index Return to Main Contents

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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 4.15 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/.

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Index

NAME

SYNOPSIS

DESCRIPTION

RETURN VALUE

ERRORS

VERSIONS

CONFORMING TO

NOTES

COLOPHON

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