使用 rc-local.service
rc-local.service 是系統(tǒng)自帶的一個(gè)開機(jī)自啟服務(wù)，但是在 ubuntu 20.04 上，該服務(wù)默認(rèn)沒有開啟。
在文件的最后面添加 [Install] 段的內(nèi)容，
cat > /lib/systemd/system/rc-local.service
# SPDX-License-Identifier: LGPL-2.1-or-later
#
# This file is part of systemd.
#
# systemd is free software; you can redistribute it and/or modify it
# under the terms of the GNU Lesser General Public License as published by
# the Free Software Foundation; either version 2.1 of the License, or
# (at your option) any later version.
# This unit gets pulled automatically into multi-user.target by
# systemd-rc-local-generator if /etc/rc.local is executable.
[Unit]
Description=/etc/rc.local Compatibility
Documentation=man:systemd-rc-local-generator(8)
ConditionFileIsExecutable=/etc/rc.local
After=network.target
[Service]
Type=forking
ExecStart=/etc/rc.local start
TimeoutSec=0
RemainAfterExit=yes
GuessMainPID=no
[Install]
WantedBy=multi-user.target
創(chuàng)建 /etc/rc.local
Ubuntu 20.04 默認(rèn)不存在 /etc/rc.local，需要自己創(chuàng)建，注意第一行必須是#!/bin/bash，否則啟動rc-local服務(wù)報(bào)錯(cuò)。Failed at step EXEC spawning /etc/rc.d/init.d/nginx: Exec format error.文章來源：http://www.zghlxwxcb.cn/news/detail-786904.html
cat /etc/rc.local
#!/bin/bash
/usr/sbin/ifconfig enp0s1 down
/usr/sbin/ifconfig enp0s1 hw ether b6:f5:2c:0d:3d:16
/usr/sbin/ifconfig enp0s1 up
修改 /etc/rc.local 權(quán)限
chmod 755 /etc/rc.local
安裝ifconfig命令
apt-get install net-tools
設(shè)置rc-local為開機(jī)自啟動
systemctl enable rc-local
啟動rc-local服務(wù)
啟動rc-local服務(wù)后，mac地址即可更改。并且以后reboot機(jī)器也不會失效。文章來源地址http://www.zghlxwxcb.cn/news/detail-786904.html
systemctl daemon-reload
systemctl start rc-local
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