ARM 的 NAS 安装 Plex 的优化方案-节省root根路径的空间占用

原创文章，转载请注明出处！

前面有篇文章已经有相关的mycloud安装plex的一键包了，不过需要占用500M左右的根空间，安装过程中还需要挂载500mb的/tmp临时目录。

这次，我要说的是，全手动安装plex到nas，实现自定义存放路径+自启动。

1、下载：去官网（www.plex.tv）下载群晖的插件，一个spk为扩展名的包。

例如： PlexMediaServer-0.9.11.16.958-80f1748-arm7.spk   //红色部分，请自行更换成你自己的

下载好后，仍到 /share/scjtqs/（我的4T硬盘的存储挂载点）下

2、解包：

cd /share/scjtqs

mkdir plex

mkdir /share/tmp;chmod 777  /share/tmp

mv PlexMediaServer-0.9.11.16.958-80f1748-arm7.spk     plex/PlexMediaServer-0.9.11.16.958-80f1748-arm7.tar

cd plex

tar -xvf PlexMediaServer-0.9.11.16.958-80f1748-arm7.tar

解压后会出现几个文件，其中最主要的是我们的 package,tgz

mkdir -p /share/scjtqs/local/plex/Application     //这是程序的主目录，请自行更换成你自己的，或者直接用我的，后面的几个代码和脚本中，出现的这个目录，也请更换掉！

tar -xvf package.tgz -C /share/scjtqs/local/plex/Application

3、配置

a)在 vim /etc/default/plexmediaserver

# default script for Plex Media Server

# the number of plugins that can run at the same time
PLEX_MEDIA_SERVER_MAX_PLUGIN_PROCS=6

# ulimit -s $PLEX_MEDIA_SERVER_MAX_STACK_SIZE
PLEX_MEDIA_SERVER_MAX_STACK_SIZE=3000

# where the mediaserver should store the transcodes
PLEX_MEDIA_SERVER_TMPDIR=/share/tmp

# uncomment to set it to something else
 PLEX_MEDIA_SERVER_APPLICATION_SUPPORT_DIR="/share/plex/Library/Application\ Support"

# the user that PMS should run as, defaults to 'plex'
# note that if you change this you might need to move
# the Application Support directory to not lose your
# media library
PLEX_MEDIA_SERVER_USER=plex

b)  useradd plex

c) vim /etc/init/plexmediaserver.conf

# plexpms - service job file

description "Plex Media Server"
author "http://www.plexapp.com/"

# When to start the service
start on runlevel [2345]

# When to stop the service
stop on runlevel [016]

# Automatically restart process if crashed
respawn

# Sets nice and ionice level for job
nice -5

# What to execute
script
    if [ -r /etc/default/plexmediaserver ]; then
        . /etc/default/plexmediaserver
    fi 
    start-stop-daemon --start -c $PLEX_MEDIA_SERVER_USER --exec /usr/sbin/start_pms
end script

d) vim /etc/init.d/plexmediaserver

#!/bin/sh
### BEGIN INIT INFO
# Provides:          plexmediaserver
# Required-Start:    remote_fssyslog networking
# Required-Stop:     
# Default-Start:     2 3 4 5
# Default-Stop:      0 1 6
# Short-Description: Plex Media Server
# Description:       Plex Media Server for Linux,
#                    More information at http://www.plexapp.com
#                    Many thanks to the great PlexApp team for their wonderfull job !
# Author:            Cedric Quillevere / [email protected]
# Rewamped	     Christian Svedin / [email protected]
# Version:           1.2
### END INIT INFO

# Read configuration variable file if it is present
[ -r /etc/default/plexmediaserver ] && . /etc/default/plexmediaserver

plex_running=ps ax | grep "\./Plex Media Server" | awk '{ print1 }' | wc -l

case "1" in
    start)
  if [ "plex_running" -gt 1 ]; then
    echo "Plex already running..."
    exit 0
  fi
  echo -n "Starting Plex Media Server: "
  su -l PLEX_MEDIA_SERVER_USER -c "/usr/sbin/start_pms &" >/dev/null 2>&1
  sleep 1
  echo "done"
  ;;
    stop)
  if [ "plex_running" -eq 1 ]; then
    echo "Plex Media Server is not running (no process found)..."
    exit 0
  fi
  echo -n "Killing Plex Media Server: "
  # Trying to kill the Plex Media Server itself but also the Plug-ins
  ps ax | grep "Plex Media Server" | awk '{ print 1 }' | xargs kill -15 >/dev/null 2>&1
  ps ax | grep "Plex Plug-in" | awk '{ print1 }' | xargs kill -15 >/dev/null 2>&1
  ps ax | grep "Plex DLNA Server" | awk '{ print 1 }' | xargs kill -15 >/dev/null 2>&1
  ps ax | grep "Plex Tuner Service" | awk '{ print1 }' | xargs kill -15 >/dev/null 2>&1
  ps ax | grep "Plex Media Scanner" | awk '{ print 1 }' | xargs kill -15 >/dev/null 2>&1
  ps ax | grep "Plex DLNA Server" | awk '{ print1 }' | xargs kill -15 >/dev/null 2>&1
  ps ax | grep "Plex Relay" | awk '{ print 1 }' | xargs kill -15 >/dev/null 2>&1
  ps ax | grep "Plex Transcoder" | awk '{ print1 }' | xargs kill -15 >/dev/null 2>&1
  ps ax | grep "Plex Script Host" | awk '{ print 1 }' | xargs kill -15 >/dev/null 2>&1
  sleep 1
  echo "done"
  ;;
    restart)
  sh0 stop
  sh 0 start
  ;;
    status)
        if [ "plex_running" -gt 1 ]; then
                echo "Plex Media Server process running."
  else
    echo "It seems that Plex Media Server isn't running (no process found)."
        fi
  ;;
    *)
  echo "Usage: $0 {start|stop|restart|status}"
  exit 1
  ;;
esac

exit 0

chmod 755 /etc/init.d/plexmediaserver

e) vim /usr/sbin/start_pms

#!/bin/sh

#change these parameters in /etc/default/plexmediaserver
export PLEX_MEDIA_SERVER_MAX_PLUGIN_PROCS=6
export PLEX_MEDIA_SERVER_HOME=/share/scjtqs/local/plex/Application/
export PLEX_MEDIA_SERVER_MAX_STACK_SIZE=3000
export PLEX_MEDIA_SERVER_TMPDIR=/share/tmp
export PLEX_MEDIA_SERVER_APPLICATION_SUPPORT_DIR="/share/plex/Library/Application\ Support"

test -f /etc/default/plexmediaserver && . /etc/default/plexmediaserver

if [ ! -d "PLEX_MEDIA_SERVER_APPLICATION_SUPPORT_DIR" ]
then
  mkdir -p "PLEX_MEDIA_SERVER_APPLICATION_SUPPORT_DIR"
  if [ ! ? -eq 0 ]
  then
    echo "WARNING COULDN'T CREATEPLEX_MEDIA_SERVER_APPLICATION_SUPPORT_DIR, MAKE SURE I HAVE PERMISSON TO DO THAT!"
    exit 1
  fi
fi

export LD_LIBRARY_PATH="{PLEX_MEDIA_SERVER_HOME}"
export TMPDIR="{PLEX_MEDIA_SERVER_TMPDIR}"

echo PLEX_MEDIA_SERVER_MAX_PLUGIN_PROCSPLEX_MEDIA_SERVER_MAX_STACK_SIZE PLEX_MEDIA_SERVER_APPLICATION_SUPPORT_DIR

ulimit -sPLEX_MAX_STACK_SIZE

(cd /share/scjtqs/local/plex/Application/; ./Plex\ Media\ Server)

chmod +x /usr/sbin/start_pms

然后 service plexmediaserver start

至于自启动。。。我就不多说了，不同的系统不一样的。

我以centos7为例：systemctl enable plexmediaserver

debian例子: update-rc.d plexmediaserver defaults

~~~!到此完结！~~~

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