setup - setup devices and filesystems, mount root filesystem
() 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
() always returns -1 for a user process.
- Always, for a user process.
Since Linux 2.1.121, no such function exists anymore.
This function is Linux-specific, and should not be used in programs intended to
be portable, or indeed in any programs at all.
The calling sequence varied: at some times setup
() has had a single
argument void *BIOS
and at other times a single argument int