| .\" Copyright (c) 1992 Drew Eckhardt (drew@cs.colorado.edu), March 28, 1992 |
| .\" |
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| .\" Since the Linux kernel and libraries are constantly changing, this |
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| .\" Modified by Michael Haardt <michael@moria.de> |
| .\" Modified Sun Jul 25 10:14:13 1993 by Rik Faith <faith@cs.unc.edu> |
| .\" Modified 15 April 1995 by Michael Chastain <mec@shell.portal.com> |
| .\" Update calling parameters to Linux 1.2.4 values. |
| .\" Modified 10 June 1995 by Andries Brouwer <aeb@cwi.nl> |
| .\" Modified 3 May 1996 by Martin Schulze <joey@infodrom.north.de> |
| .\" Modified Wed Nov 6 04:05:28 1996 by Eric S. Raymond <esr@thyrsus.com> |
| .\" Modified Sat Jan 29 01:08:23 2000 by aeb |
| .\" |
| .TH SETUP 2 2008-12-03 "Linux" "Linux Programmer's Manual" |
| .SH NAME |
| setup \- setup devices and filesystems, mount root filesystem |
| .SH SYNOPSIS |
| .B #include <unistd.h> |
| .sp |
| .B int setup(void); |
| .SH DESCRIPTION |
| .BR setup () |
| is called once from within |
| .IR linux/init/main.c . |
| It calls initialization functions for devices and filesystems |
| configured into the kernel and then mounts the root filesystem. |
| .PP |
| No user process may call |
| .BR setup (). |
| Any user process, even a process with superuser permission, |
| will receive |
| .BR EPERM . |
| .SH RETURN VALUE |
| .BR setup () |
| always returns \-1 for a user process. |
| .SH ERRORS |
| .TP |
| .B EPERM |
| Always, for a user process. |
| .SH VERSIONS |
| Since Linux 2.1.121, no such function exists anymore. |
| .SH 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. |
| .SH NOTES |
| The calling sequence varied: at some times |
| .BR setup () |
| has had a single argument |
| .I "void\ *BIOS" |
| and at other times a single argument |
| .IR "int magic" . |