问新建机器的时候高级设置(自定义数据)？

新建实例的时候在高级设置里，可以写入类似启动脚本的东西

我填的内容是

IyEvYmluL2Jhc2gKZWNobyByb290OnJvb3QgfHN1ZG8gY2hwYXNzd2Qgcm9vdApzdWRvIGFwdC1nZXQgdXBkYXRlCnN1ZG8gYXB0LWdldCBpbnN0YWxsIGRvY2tlci5pbyAteQpzdWRvIGRvY2tlciBwdWxsIHF1YXJrY2hhaW5kb2NrZXIvZ29xdWFya2NoYWluCnN1ZG8gc2VkIC1pICdzL14jXD9QZXJtaXRSb290TG9naW4uKi9QZXJtaXRSb290TG9naW4geWVzL2cnIC9ldGMvc3NoL3NzaGRfY29uZmlnOwpzdWRvIHNlZCAtaSAncy9eI1w/UGFzc3dvcmRBdXRoZW50aWNhdGlvbi4qL1Bhc3N3b3JkQXV0aGVudGljYXRpb24geWVzL2cnIC9ldGMvc3NoL3NzaGRfY29uZmlnOwpzdWRvIHJlYm9vdAo=

真正的脚本内容是

#!/bin/bash

echo root:root |sudo chpasswd root

sudo apt-get update

sudo apt-get install docker.io -y

sudo docker pull quarkchaindocker/goquarkchain

sudo sed -i 's/^#\?PermitRootLogin.*/PermitRootLogin yes/g' /etc/ssh/sshd_config;

sudo sed -i 's/^#\?PasswordAuthentication.*/PasswordAuthentication yes/g' /etc/ssh/sshd_config;

sudo reboot

系统是ubuntu 18.04

请问有什么问题吗？为什么没有执行成功