Come installare Logitech Media Server (squeezebox Server)?

Dove posso trovare i file di installazione più recenti per Logitech Media Server e come si installa correttamente?

(Lo sto eseguendo su un Raspberry Pi 2 e ho dovuto reinstallarlo più volte a causa di una scheda SD difettosa. Quindi risponderò a questa domanda principalmente come promemoria per me stesso.)

Risposta accettata:

Ho aggiornato a Ubuntu 20.04 e questo ha interrotto la mia installazione ma ho capito come farlo funzionare di nuovo:

Dopo un po' di temperaggio, ho pensato di fare una nuova installazione. Quindi ho cancellato le vecchie cose in /var/lib/squeezeboxserver/

Poi mi sono procurato un nuovo pacchetto deb per la versione 8.0 (beta) da:http://downloads.slimdevices.com/nightly/?ver=8.0

Personalmente ho usato la versione più piattaforma ma a seconda della piattaforma basta selezionare una deb adatta:

wget http://downloads.slimdevices.com/nightly/8.0/lms/cf7bcdb87b4f8bf6f71f5b5444c923afae4c300d/logitechmediaserver_8.0.0~1589180193_all.deb

Installato con:
dpkg -i logitechmediaserver_8.0.0_1588799628_all.deb

Dato che ho provato anche versioni precedenti e ho persino provato un git checkout, spero di non avere dettagli che un altro script ha già fatto per me senza accorgermene.

Se l'installazione di dpkg non ha già aggiunto un utente e un gruppo, fallo:

adduser squeezeboxserver
usermod -a -G squeezeboxserver squeezeboxserver

Crea una directory per il file pid:

mkdir /var/run/logitechmediaserver

E consegnalo a quell'utente e gruppo:

chown squeezeboxserver:squeezeboxserver /var/run/logitechmediaserver

Lo stesso vale per le cose in /var/lib/squeezeboxserver/

chown squeezeboxserver:squeezeboxserver /var/lib/squeezeboxserver
chown -R squeezeboxserver:squeezeboxserver /var/lib/squeezeboxserver/*

Il problema si presenta con lo script di avvio in /etc/init.d. Semplicemente non funziona, poiché Ubuntu 20.04 non ha più il demone start-stop. È semplicemente collegato a /bin/true che potrebbe funzionare per alcuni script ma non per logitechmediaserver. Ho provato un'implementazione C per questo programma, ma aveva dei cardini, quindi ho abbandonato il demone start-stop e ho modificato il programma di avvio di conseguenza.

Basta archiviare il vecchio script di avvio (solo per salvarlo) e copiare questo contenuto in un editor a tua scelta:

#!/bin/sh
#
# $Id$
#
# logitechmediaserver   initscript for slimserver.pl
#           This file should be placed in /etc/init.d.
#
# Original Author: Mattias Holmlund
#
# Updated By: Dan Sully, Michael Herger, Alexander Hartmann

#
### BEGIN INIT INFO
# Provides:             logitechmediaserver
# Required-Start:       $all
# Required-Stop:        $all
# Should-Start:         $all
# Should-Stop:          $all
# Default-Start:        2 3 4 5
# Default-Stop:         0 1 6
# Short-Description:    Startup script for the Logitech Media Server
# Description:      Logitech Media Server powers the Squeezebox, Transporter and SLIMP3 network music 
#           players and is the best software to stream your music to any software MP3 
#           player. It supports MP3, AAC, WMA, FLAC, Ogg Vorbis, WAV and more! 
#           As of version 7.7 it also supports UPnP clients, serving pictures and movies too!"
### END INIT INFO
#
# -e  Exit immediately if a command exits with a non-zero status.
set -e

# Load the VERBOSE setting and other rcS variables
. /lib/init/vars.sh

# Define LSB log_* functions.
# Depend on lsb-base (>= 3.2-14) to ensure that this file is present
# and status_of_proc is working.
. /lib/lsb/init-functions


### About logitechmediaserver
# The logitechmediaserver is kind of special. It uses the
# squeezeboxserver_safe script, to restart any died squeezeboxserver. This
# can easily happen, for example if you use a MySQL server. Depending on unix
# flavour you are running they sometimes do a regular restart. That would
# cause the squeezeboxserver to terminate. Because of that the 
# squeezeboxserver_safe starts a logitechmediaserver every few seconds, which
# gets shut down again if any other logitechmediaserver is still running.
#
# Sadly this procedure messes up, the process id file. You would get a new id
# file, every time a new server process gets started. That process will
# terminate but the process id of the first server process is lost. So the
# killing the squeezeboxserver have to be done with analysing the process
# table.
#
# As I upgraded to Ubuntu 20.04 my logitechmediaserver stopped working.
# Installing the lastest 8.0 version was no problem downloading the deb-packet
# and installing with dpkg. But the server did not start. I could start it
# manually but the startup script was not able to start it. After some looking
# around I found this:
#
#           /sbin/start-stop-daemon -> /bin/true
#
# This explains why the start up script is not working. There is no package
# in the ubuntu package repository for the start-stop-daemon.
#
# First I tried the C implementation of start-stop-daemon from Dale O'Brien on
# github (https://github.com/daleobrien/start-stop-daemon). It does not
# implement the --remove-pidfile option the original script. But more 
# problematic it threw the error not able to terminate the server while
# doing it without a problem.
#
# I had to compile the C implementation from Dale O'Brien myself, which
# worked without a hitch. Considering the limiations of the implementation
# I came to the conclusion to ditch the start-stop-daemon completly and 
# doing it the old school way.


PATH=/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin
DESC="Logitech Media Server"
NAME=squeezeboxserver
NEWNAME=logitechmediaserver
DAEMON=/usr/sbin/$NAME
DAEMON_RESTARTER=/usr/sbin/${NAME}_safe
PIDFILE=/var/run/$NEWNAME/${NEWNAME}.pid
SCRIPTNAME=/etc/init.d/$NEWNAME
SLIMUSER=$NAME
SLIGROUP=$NAME
PREFSDIR=/var/lib/$NAME/prefs
LOGDIR=/var/log/$NAME/
CACHEDIR=/var/lib/$NAME/cache
CHARSET=utf8
SLEEPTIMER=1

## if you want to add additional options
## use /usr/sbin/squeezeboxserver --help 
## for the supported options and place them
## into the configfile  /etc/default/logitechmediaserver


# Read config file if it is present.
if [ -r /etc/default/$NEWNAME ]; then
    . /etc/default/$NEWNAME
elif [ -r /etc/default/$NAME ]; then
    . /etc/default/$NAME
fi

#
#   Function that starts the daemon/service.
#
d_start() {
        # Where is your su installed?
        SU_BIN=$(command -v su)

        # Use squeezeboxserver_safe to restart the daemon when
        # it dies. This must be done to handle mysql restarts.

        $SU_BIN - $SLIMUSER 
          -s /bin/sh 
          -c "$DAEMON_RESTARTER 
                $DAEMON 
                  --user $SLIMUSER 
                  --group $SLIGROUP 
                  --prefsdir $PREFSDIR 
                  --logdir $LOGDIR 
                  --cachedir $CACHEDIR 
                  --charset=$CHARSET 
                  --daemon 
                  $SLIMOPTIONS 
              > /dev/null 2>&1 &"


        # Writing the pid for the restarter          
        PID=$(ps ax | 
          grep "$DAEMON_RESTARTER $DAEMON" | 
          grep -v grep | 
          head -1 | 
          awk '{print $1}' )

        if [ $PID ]
        then
          if [ $PID -gt 0 ]
          then
            echo -n "  Started the restarter with the process id: "
            echo $PID

            if [ -e $PIDFILE ]
            then
              rm $PIDFILE
            fi

            echo -n $PID > $PIDFILE
          fi
        else
            echo "  ERROR: No process id for the restarter could be found!"
        fi


        # Check if the server is successfully started        
        PERL_BIN=$(command -v perl)

        PID_SERVER=$(ps ax | 
          grep "$PERL_BIN $DAEMON" | 
          grep -v grep | 
          head -1 | 
          awk '{print $1}' )

        if [ $PID_SERVER ]
        then
          if [ $PID_SERVER -gt 0 ]
          then
            echo "  Started the server successfully."
          else
            echo "  ERROR: No process id for the server could be found!"        
          fi
        fi
}


#   Function that stops the daemon/service.
#
d_stop() {
    echo -n "  Checking if the restarter is still running: "

    ## This will kill the squeezeboxserver_safe script. So we don't have
    ## to bother about it, starting new processes.

    PID1=$(ps ax | 
      grep "$DAEMON_RESTARTER $DAEMON" | 
      grep -v grep | 
      head -1 | 
      awk '{print $1}' )


    if [ $PID1 ]
    then
      echo positive
      if [ $PID1 -gt 0 ]
      then
        echo -n "  Stopping now restarter: "

        kill $PID1

            if [ -e $PIDFILE ]
            then
              rm $PIDFILE
        fi

        echo done.
      fi
    else
            echo negative
        fi

    ## We have to kill at least one server process. Possible two processes
    ## and in weird cases  under real high load even three processess.
    ## So a loop it is.
    ## We have to wait for at least one second for closing the process
    ## and analyzing the process list again.

        echo -n "  Checking if any server instances are running: "

    PERL_BIN=$(command -v perl)

        PID2=$(ps ax | 
          grep "$PERL_BIN $DAEMON" | 
          grep -v grep | 
          head -1 | 
          awk '{print $1}' )

        if [ $PID2 ]
        then
          echo positive
          echo -n "  Stopping now all server instances: "
          if [ $PID2 -gt 0 ]
          then
            while [ $(ps ax | 
              grep "$PERL_BIN $DAEMON" | 
              grep -v grep | 
              head -1 | 
              awk '{print $1}') ]
            do
          kill $(ps ax | 
                grep "$PERL_BIN $DAEMON" | 
                grep -v grep | 
                head -1 | 
                awk '{print $1}')
              sleep $SLEEPTIMER
            done
            echo done
          fi
        else
          echo negative
        fi
}

#
#   Function that sends a SIGHUP to the daemon/service.
#
d_reload() {
    start-stop-daemon --stop --quiet --pidfile $PIDFILE --signal 1
}

case "$1" in
  start)
    echo "Making sure that $DESC is not running: "
    d_stop
    echo "Starting $DESC:"
    d_start
    ;;
  stop)
    echo "Stopping $DESC:"
    d_stop
    ;;
  restart|force-reload)
    #
    #   If the "reload" option is implemented, move the "force-reload"
    #   option to the "reload" entry above. If not, "force-reload" is
    #   just the same as "restart".
    #
    echo "Restarting $NAME."
    d_stop
    d_start
    ;;
  status)  
    status_of_proc /usr/bin/$NEWNAME $NEWNAME
    ;;
  *)
    echo "Usage: $SCRIPTNAME {start|stop|restart|force-reload|status}" >&2
    exit 1
    ;;
esac

exit 0

Sì, non è carino, ma fa il lavoro per me e spero che aiuterà anche te. Devi inserirlo in /etc/init.d sotto il nome logitechmediaserver

Correlati:come aggiungere l'opzione di spegnimento alla schermata di blocco di Ubuntu?

Dopodiché devi eseguire il seguente comando per rendere felice systemctl:

systemctl daemon-reload

Basta fare un giro di prova avviandolo:

/etc/init.d/logitechmediaserver start

Dovresti essere in grado di accedere con il tuo browser web a http://YourServerIP:9000/ e configurarlo.

E verifica se si spegne di nuovo:

/etc/init.d/logitechmediaserver stop

Quando tutto ha funzionato, abilita il servizio:

systemctl enable logitechmediaserver.service