Kernel panic - not syncing: No init found.  Try passing init= option to kernel

   if (execute_command) {
        run_init_process(execute_command);
        printk(KERN_WARNING "Failed to execute %s.  Attempting "
                    "defaults...\n", execute_command);
    }
    run_init_process("/sbin/init");
    run_init_process("/etc/init");
    run_init_process("/bin/init");
    run_init_process("/bin/sh");

    panic("No init found.  Try passing init= option to kernel.");

为什么我的rootfs sbin/init   etc/init  bin/init       bin/sh    dev/console    dev/null 都存在，却还是说找不到init,这与init的什么库文件有关吗，我用的是动态编译busybox

setenv bootargs noinitrd root=/dev/nfs rw nfsroot=192.168.1.111:/embed/fs/rootfs ip=192.168.1.112  init=/linuxrc console=ttySAC1,115200