linux_fedora nexus_auto_start

时间：2021-05-11 21:23:17
 
fedora20发布，不对rc.local支持，其实只是删除了rc.local文件，如果想在开机时能够运行自己写的脚本，只要新建rc.local文件就可以了，下面让我们来测试下吧：
环境：fedora20 GNOME桌面
1./etc/rc.local其实是/etc/rc.d/rc.local的软连接，那么:
vi /etc/rc.d/rc.local
 #!/bin/bash

 #this is a script foe nexus start,if the nexus is startting,return.

 echo "nexus verify.."

 testing8081=`(netstat -an|grep )`

 if [ "NULL$testing8081" = "NULL" ] ; then

         echo "nuxus starting..."

         /home/Jorcen/Environments/nexus/nexus-2.7.-/bin/nexus start

        else

         echo -n "nexus had started,do you need restart it?(Y/N):"

         read verify

         if [ "$verify" = "Y" ] ; then

                 /home/Jorcen/Environments/nexus/nexus-2.7.-/bin/nexus restart

         echo "nexus restared.."

         fi

 fi

编 辑文件/lib/systemd/system /rc-local.service,将ConditionFilel***ecutable=/etc/rc.d/rc.local前面奖赏#号注释掉 及#ConditionFilel***ecutable=/etc/rc.d/rc.local

[root@localhost Jorcen]# vi /lib/systemd/system/rc-local.service

#  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.d/rc.local is executable.

[Unit]

Description=/etc/rc.d/rc.local Compatibility

#ConditionFileIsExecutable=/etc/rc.d/rc.local

After=network.target

[Service]

Type=forking

ExecStart=/etc/rc.d/rc.local start

TimeoutSec=

RemainAfterExit=yes

SysVStartPriority=

step2

 [root@localhost Jorcen]# chmod +x /etc/rc.d/rc.local

 [root@localhost Jorcen]# ln -s /etc/rc.d/rc.local /etc/rc.local

 [root@localhost Jorcen]# systemctl status rc-local.service

 rc-local.service - /etc/rc.d/rc.local Compatibility

    Loaded: loaded (/usr/lib/systemd/system/rc-local.service; static)

    Active: failed (Result: exit-code) since Sat -- :: CST; 2min 44s ago

   Process:  ExecStart=/etc/rc.d/rc.local start (code=exited, status=/EXEC)

 Mar  :: localhost.localdomain systemd[]: Starting /etc/rc.d/rc.local...

 Mar  :: localhost.localdomain systemd[]: rc-local.service: control p...

 Mar  :: localhost.localdomain systemd[]: Failed to start /etc/rc.d/r...

 Mar  :: localhost.localdomain systemd[]: Unit rc-local.service enter...

 [root@localhost Jorcen]# systemctl start rc-local.service

 [root@localhost Jorcen]# systemctl status rc-local.service

 rc-local.service - /etc/rc.d/rc.local Compatibility

    Loaded: loaded (/usr/lib/systemd/system/rc-local.service; static)

    Active: active (running) since Sat -- :: CST; 27s ago

   Process:  ExecStart=/etc/rc.d/rc.local start (code=exited, status=/SUCCESS)

  Main PID:  (wrapper)

    CGroup: name=systemd:/system/rc-local.service

            ├─ /home/Jorcen/Environments/nexus/nexus-2.7.-/bin/jsw/linux-x86-/wrapper /home/Jorcen/Environments/nexus/nexus-2.7.-/bin/js...

            └─ java -Djava.net.preferIPv4Stack=true -Dcom.sun.jndi.ldap.connect.pool.protocol=plain ssl -Djava.library.path=bin/jsw/lib -classpa...

 Mar  :: localhost.localdomain systemd[]: Starting /etc/rc.d/rc.local Compatibility...

 Mar  :: localhost.localdomain rc.local[]: nexus verify..

 Mar  :: localhost.localdomain rc.local[]: nuxus starting...

 Mar  :: localhost.localdomain rc.local[]: ****************************************

 Mar  :: localhost.localdomain rc.local[]: WARNING - NOT RECOMMENDED TO RUN AS ROOT

 Mar  :: localhost.localdomain rc.local[]: ****************************************

 Mar  :: localhost.localdomain rc.local[]: Starting Nexus OSS...

 Mar  :: localhost.localdomain rc.local[]: Removed stale pid file: /home/Jorcen/Environments/nexus/nexus-2.7.-/nexus.pid

 Mar  :: localhost.localdomain systemd[]: Started /etc/rc.d/rc.local Compatibility.
chmod +x /etc/rc.d/rc.local
ln -s /etc/rc.d/rc.local /etc/rc.local
2.查看rc-local.service
systemctl status rc-local.service
如果服务没有启动可以先启动下rc-local.service
3.启动rc-local.service
systemctl start rc-local.service
然后用第2点的命令查看服务状态，这里可能有的服务启动不起来，为什么：
解决：
编辑文件/lib/systemd/system /rc-local.service,将ConditionFilel***ecutable=/etc/rc.d/rc.local前面奖赏#号注释掉 及#ConditionFilel***ecutable=/etc/rc.d/rc.local
再次启动下rc-local.service并用systemctl status rc-local.service看看状态是不是已经启动起来了
4.重启机器
查看/root下是不是多了个文件test，说明我们的开机脚本已经运行了！
 
 

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