setup - setup devices and filesystems, mount root filesystem
setup() 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
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