setup man page on CentOS

setup man page on CentOS

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SETUP(2)		   Linux Programmer's Manual		      SETUP(2)

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

SYNOPSIS
       #include <unistd.h>

       _syscall0(int, setup)

       int setup(void);

DESCRIPTION
       setup()	is  called  once from within linux/init/main.c.	 It calls ini‐
       tialization 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.

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.  Since Linux
       2.1.121, no such function exists anymore.  The calling sequence varied:
       it  has	had a single parameter void * BIOS and at other times a single
       parameter int magic.

Linux 1.2.9			  1996-05-03			      SETUP(2)

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