当主机通过 bash 脚本启动时,我尝试使用etherwake
发送魔法数据包的命令远程唤醒从机。两个操作系统都是Debian 8。完整代码如下:
/etc/init.d/etherwake
#!/bin/sh
#/etc/init.d/etherwake
### BEGIN INIT INFO
# Provides: etherwake
# Required-Start: $all
# Required-Stop: $local_fs $remote_fs $network $syslog
# Default-Start: 2 3 4 5
# Default-Stop: 0 1 6
# Short-Description: Start etherwake at boot time
# Description: Enable service provided by etherwake.
### END INIT INFO
ETHERWAKE=/usr/sbin/etherwake
case "$1" in
start)
echo "Booting slaves through etherwake..."
$ETHERWAKE <MAC Address>
echo "Finished booting all slaves."
;;
stop)
echo "Stop not implemented. Doing nothing"
;;
restart|force-reload)
$0 stop
sleep 10
$0 start
;;
*)
echo "Usage: /etc/init.d/etherwake {start}"
exit 1
;;
esac
exit 0
写完剧本后,我做了:
chmod 755 /etc/init.d/etherwake
update-rc.d etherwake defaults
- 通过重新启动系统
shutdown -r now
我还尝试过/etc/rc.local
以三种不同的方式使用:
/etc/rc.local
#!/bin/sh -e
#
# rc.local
/etc/init.d/etherwake
etherwake <MAC Address>
/usr/sbin/etherwake <MAC Address>
exit 0
没有任何运气。当我以 root 身份运行/etc/rc.local
或/etc/init.d/etherwake
手动运行时,一切都运行良好。我认为这可能是具有权限的问题,但据我阅读/etc/init.d
默认情况下以 root 身份运行的任何脚本。我究竟做错了什么?
提前致谢。
编辑:
我了解 Debian 8 使用 systemd 而不是 sysvinit。设置完一切后systemctl -l status etherwake.service
给我:
● etherwake.service - Etherwake magic packet service
Loaded: loaded (/etc/systemd/system/etherwake.service; enabled)
Active: inactive (dead) since Fri 2016-09-30 16:30:56 BRT; 1min 33s ago
Process: 824 ExecStart=/etc/init.d/etherwake start (code=exited, status=0/SUCCESS)
Main PID: 824 (code=exited, status=0/SUCCESS)
Sep 30 16:30:56 hostname etherwake[824]: Booting slaves through etherwake...
Sep 30 16:30:56 hostname etherwake[824]: Finished booting all slaves.
并且/etc/systemd/system/etherwake.service
是:
[Unit]
Description=Etherwake magic packet service
Wants=network-online.target
After=syslog.service network.target network-online.target
[Service]
ExecStart=/etc/init.d/etherwake start
[Install]
WantedBy=default.target
我注意到的另一件事是跑步systemctl restart etherwake
有一种魅力。
答案1
问题是这update-rc.d etherwake defaults
可能行不通。尝试通过 启用服务systemctl
,运行:
systemctl enable etherwake