setup(2)

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 4.09 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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