ref: f596580cba7c5b7bae84ee7cd83d2b2a438a1e9b
dir: /sys/src/9/boot/boot.c/
#include <u.h>
#include <libc.h>
char bin[] = "/bin";
char root[] = "/root";
void
main(int, char *argv[])
{
char buf[32];
/* setup the boot namespace */
bind("/boot", bin, MAFTER);
if(fork() == 0){
execl("/bin/paqfs", "-qa", "-c", "8", "-m", root, "/boot/bootfs.paq", nil);
goto Err;
}
if(await(buf, sizeof(buf)) < 0)
goto Err;
bind(root, "/", MAFTER);
buf[0] = '/';
buf[1+read(open("/env/cputype", OREAD|OCEXEC), buf+1, sizeof buf - 6)] = '\0';
strcat(buf, bin);
bind(buf, bin, MAFTER);
bind("/rc/bin", bin, MAFTER);
exec("/bin/bootrc", argv);
Err:
errstr(buf, sizeof buf);
_exits(buf);
}