1.查看系统版本
root@bogon-virtual-machine:~# lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 22.04 LTS
Release: 22.04
Codename: jammy
root@bogon-virtual-machine:~
2. 解决 /etc/ 开机启动问题
看状态（当前是未启动的,启动也会失败,因为缺少/etc/文件）
root@bogon-virtual-machine:~# systemctl status
○ - /etc/ Compatibility
Loaded: loaded (/lib/systemd/system/; static)
Drop-In: /usr/lib/systemd/system/
└─
Active: inactive (dead)
Docs: man:systemd-rc-local-generator(8)
修改/lib/systemd/system/ 文件
root@bogon-virtual-machine:~# vim /lib/systemd/system/
[Unit]
Description=/etc/ Compatibility
Documentation=man:systemd-rc-local-generator(8)
ConditionFileIsExecutable=/etc/
After=
[Service]
Type=forking
#ExecStart=/etc/ start #将此行注释
ExecStart=/bin/bash /etc/ start #添加此行配置
TimeoutSec=0
RemainAfterExit=yes
GuessMainPID=no
重新加载一下
root@bogon-virtual-machine:~# systemctl daemon-reload
创建/etc/文件并加上权限
root@bogon-virtual-machine:~# touch /etc/
root@bogon-virtual-machine:~# ls -l /etc/
root@bogon-virtual-machine:~# chmod +x /etc/
往文件中添加内容
root@bogon-virtual-machine:~# vim /etc/
#!/bin/bash
启动服务
root@bogon-virtual-machine:~# systemctl start
root@bogon-virtual-machine:~# systemctl status
● - /etc/ Compatibility
Loaded: loaded (/lib/systemd/system/; static)
Drop-In: /usr/lib/systemd/system/
└─
Active: active (exited) since Wed 2023-10-25 10:31:29 CST; 7s ago
Docs: man:systemd-rc-local-generator(8)
Process: 1776 ExecStart=/bin/bash /etc/ start (code=exited, status=0/SUCCESS)
CPU: 1ms
10月 25 10:31:29 bogon-virtual-machine systemd[1]: Starting /etc/ Compatibility...
10月 25 10:31:29 bogon-virtual-machine systemd[1]: Started /etc/ Compatibility.
3. 测试一下
在开机文件中添加创建文件命令进行测试
root@bogon-virtual-machine:~#vim /etc/
#!/bin/bash
#
touch /usr/local/
重启服务器(生产可不能随便重启哈)
root@bogon-virtual-machine:~# reboot
查看服务
root@bogon-virtual-machine:~# systemctl status #肯定是启动状态的
查看文件已创成功
root@bogon-virtual-machine:~# ll /usr/local/