Can't start tmux with systemd












0















(Previously: Systemd unit file only works for one instance name, not the other)



After finding a solution for the question linked above, my Minecraft server did what it was supposed to. But today, while creating a manual backup (by stopping the server, copying its directory somewhere else, and restarting it), something broke, and I don't know what.



This is my systemd unit file as of now:



[Unit]
Description=Minecraft Server: %i
Requires=network.target local-fs.target
After=network.target local-fs.target

[Service]
WorkingDirectory=/opt/minecraft/servers/%i
User=minecraft
Group=minecraft
Type=forking
RemainAfterExit=yes

EnvironmentFile=/opt/minecraft/servers/%i/ENV

ExecStart=/usr/bin/tmux new -s %i -d '/usr/bin/java -Xms1G -Xmx${MEMORY_ALLOC} -Dminecraft.instancename=%i -jar forge-universal.jar nogui'

ExecStop=/usr/bin/tmux send -t %i 'say SERVER WILL SHUT DOWN IN 10 SECONDS' ENTER
ExecStop=/bin/sleep 10
ExecStop=/usr/bin/tmux send -t %i 'stop' ENTER

[Install]
WantedBy=multi-user.target


(The environment file referenced in the unit file just contains the line MEMORY_ALLOC=3G.)



systemctl start minecraft@creative instantly returns and does literally nothing. Executing tmux ls as user minecraft yields the unhelpful message no server running on /tmp/tmux-999/default.



The server can be run manually, either inside or outside of a tmux session using java -Xms1G -Xmx3G -jar forge-universal.jar nogui with no problems. It only does this when run in tmux via systemd.



systemctl --failed displays this:



0 loaded units listed. Pass --all to see loaded but inactive units, too.
To show all installed unit files use 'systemctl list-unit-files'.


The journal contains no information whatsoever, as does the syslog.



I have no idea what's going on. Thanks to the internet outrage over the tmux-systemd thing from 2016, my Google results are largely unhelpful drivel. Does someone here know what I'm doing wrong?










share|improve this question





























    0















    (Previously: Systemd unit file only works for one instance name, not the other)



    After finding a solution for the question linked above, my Minecraft server did what it was supposed to. But today, while creating a manual backup (by stopping the server, copying its directory somewhere else, and restarting it), something broke, and I don't know what.



    This is my systemd unit file as of now:



    [Unit]
    Description=Minecraft Server: %i
    Requires=network.target local-fs.target
    After=network.target local-fs.target

    [Service]
    WorkingDirectory=/opt/minecraft/servers/%i
    User=minecraft
    Group=minecraft
    Type=forking
    RemainAfterExit=yes

    EnvironmentFile=/opt/minecraft/servers/%i/ENV

    ExecStart=/usr/bin/tmux new -s %i -d '/usr/bin/java -Xms1G -Xmx${MEMORY_ALLOC} -Dminecraft.instancename=%i -jar forge-universal.jar nogui'

    ExecStop=/usr/bin/tmux send -t %i 'say SERVER WILL SHUT DOWN IN 10 SECONDS' ENTER
    ExecStop=/bin/sleep 10
    ExecStop=/usr/bin/tmux send -t %i 'stop' ENTER

    [Install]
    WantedBy=multi-user.target


    (The environment file referenced in the unit file just contains the line MEMORY_ALLOC=3G.)



    systemctl start minecraft@creative instantly returns and does literally nothing. Executing tmux ls as user minecraft yields the unhelpful message no server running on /tmp/tmux-999/default.



    The server can be run manually, either inside or outside of a tmux session using java -Xms1G -Xmx3G -jar forge-universal.jar nogui with no problems. It only does this when run in tmux via systemd.



    systemctl --failed displays this:



    0 loaded units listed. Pass --all to see loaded but inactive units, too.
    To show all installed unit files use 'systemctl list-unit-files'.


    The journal contains no information whatsoever, as does the syslog.



    I have no idea what's going on. Thanks to the internet outrage over the tmux-systemd thing from 2016, my Google results are largely unhelpful drivel. Does someone here know what I'm doing wrong?










    share|improve this question



























      0












      0








      0








      (Previously: Systemd unit file only works for one instance name, not the other)



      After finding a solution for the question linked above, my Minecraft server did what it was supposed to. But today, while creating a manual backup (by stopping the server, copying its directory somewhere else, and restarting it), something broke, and I don't know what.



      This is my systemd unit file as of now:



      [Unit]
      Description=Minecraft Server: %i
      Requires=network.target local-fs.target
      After=network.target local-fs.target

      [Service]
      WorkingDirectory=/opt/minecraft/servers/%i
      User=minecraft
      Group=minecraft
      Type=forking
      RemainAfterExit=yes

      EnvironmentFile=/opt/minecraft/servers/%i/ENV

      ExecStart=/usr/bin/tmux new -s %i -d '/usr/bin/java -Xms1G -Xmx${MEMORY_ALLOC} -Dminecraft.instancename=%i -jar forge-universal.jar nogui'

      ExecStop=/usr/bin/tmux send -t %i 'say SERVER WILL SHUT DOWN IN 10 SECONDS' ENTER
      ExecStop=/bin/sleep 10
      ExecStop=/usr/bin/tmux send -t %i 'stop' ENTER

      [Install]
      WantedBy=multi-user.target


      (The environment file referenced in the unit file just contains the line MEMORY_ALLOC=3G.)



      systemctl start minecraft@creative instantly returns and does literally nothing. Executing tmux ls as user minecraft yields the unhelpful message no server running on /tmp/tmux-999/default.



      The server can be run manually, either inside or outside of a tmux session using java -Xms1G -Xmx3G -jar forge-universal.jar nogui with no problems. It only does this when run in tmux via systemd.



      systemctl --failed displays this:



      0 loaded units listed. Pass --all to see loaded but inactive units, too.
      To show all installed unit files use 'systemctl list-unit-files'.


      The journal contains no information whatsoever, as does the syslog.



      I have no idea what's going on. Thanks to the internet outrage over the tmux-systemd thing from 2016, my Google results are largely unhelpful drivel. Does someone here know what I'm doing wrong?










      share|improve this question
















      (Previously: Systemd unit file only works for one instance name, not the other)



      After finding a solution for the question linked above, my Minecraft server did what it was supposed to. But today, while creating a manual backup (by stopping the server, copying its directory somewhere else, and restarting it), something broke, and I don't know what.



      This is my systemd unit file as of now:



      [Unit]
      Description=Minecraft Server: %i
      Requires=network.target local-fs.target
      After=network.target local-fs.target

      [Service]
      WorkingDirectory=/opt/minecraft/servers/%i
      User=minecraft
      Group=minecraft
      Type=forking
      RemainAfterExit=yes

      EnvironmentFile=/opt/minecraft/servers/%i/ENV

      ExecStart=/usr/bin/tmux new -s %i -d '/usr/bin/java -Xms1G -Xmx${MEMORY_ALLOC} -Dminecraft.instancename=%i -jar forge-universal.jar nogui'

      ExecStop=/usr/bin/tmux send -t %i 'say SERVER WILL SHUT DOWN IN 10 SECONDS' ENTER
      ExecStop=/bin/sleep 10
      ExecStop=/usr/bin/tmux send -t %i 'stop' ENTER

      [Install]
      WantedBy=multi-user.target


      (The environment file referenced in the unit file just contains the line MEMORY_ALLOC=3G.)



      systemctl start minecraft@creative instantly returns and does literally nothing. Executing tmux ls as user minecraft yields the unhelpful message no server running on /tmp/tmux-999/default.



      The server can be run manually, either inside or outside of a tmux session using java -Xms1G -Xmx3G -jar forge-universal.jar nogui with no problems. It only does this when run in tmux via systemd.



      systemctl --failed displays this:



      0 loaded units listed. Pass --all to see loaded but inactive units, too.
      To show all installed unit files use 'systemctl list-unit-files'.


      The journal contains no information whatsoever, as does the syslog.



      I have no idea what's going on. Thanks to the internet outrage over the tmux-systemd thing from 2016, my Google results are largely unhelpful drivel. Does someone here know what I'm doing wrong?







      debian tmux systemd minecraft systemctl






      share|improve this question















      share|improve this question













      share|improve this question




      share|improve this question








      edited Jan 31 at 18:07







      Peter W.

















      asked Jan 31 at 17:57









      Peter W.Peter W.

      4922620




      4922620






















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