| setup(2) | System Calls Manual | setup(2) |
setup - setup devices and filesystems, mount root filesystem
Standard C library (libc, -lc)
#include <unistd.h>
[[deprecated]] int setup(void);
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.
setup() always returns -1 for a user process.
Linux.
Removed in Linux 2.1.121.
The calling sequence varied: at some times setup() has had a single argument void *BIOS and at other times a single argument int magic.
| 2023-10-31 | Linux man-pages 6.7 |