Busybox不用回车直接进入shell

在init/init.c里的run函数中将

if (a->action & ASKFIRST) {
char c;
messageD(LOG, "Waiting for enter to start '%s'" 
"(pid %d, terminal %s)/n",
cmdpath, getpid(), a->terminal);
bb_full_write(1, press_enter, sizeof(press_enter) - 1);
while(read(0, &c, 1) == 1 && c != '/n') 
;
}

注释掉,此段代码等待用户敲回车键,这样就可以直接进入shell了