Plexmediaserver.service failed to start on Ubuntu 20.04

I am new to linux, trying out ubuntuDDE which I believe is based on the 20.04 LTS, I have plex media server installed by using this guide but when i get to the part about starting and checking the status of the plex media server service it says its failed.

Here is the output of journalctl -xe | grep - plex

Summary

Jul 03 17:31:52 Desktop ntfs-3g[4052]: Mounted /dev/sdc2 (Read-Write, label “Plex and more”, NTFS 3.1)
Jul 03 17:31:52 Desktop kernel: partition /mnt/Plex and more [8, 34] added, comm[3005]: mount.ntfs
Jul 03 17:31:52 Desktop systemd[1]: Mounted /mnt/Plex and more.
– Subject: A start job for unit mnt-Plex\x20and\x20more.mount has finished successfully
– A start job for unit mnt-Plex\x20and\x20more.mount has finished successfully.
Jul 03 17:31:52 Desktop deepin-anything-tool-ionice[3976]: [2020-07-03, 17:31:52.979] [Info ] [lftmanager.cpp=>LFTManager::onMountAdded: 1272] “/org/freedesktop/UDisks2/block_devices/sdc2” “/mnt/Plex and more\x00”
Jul 03 17:31:54 Desktop audit[4123]: AVC apparmor=“DENIED” operation=“mknod” profile=“snap.plexmediaserver.plexmediaserver” name="/dev/shm/ZPrMHa" pid=4123 comm=506C6578204D656469612053657276 requested_mask=“c” denied_mask=“c” fsuid=0 ouid=0
Jul 03 17:31:55 Desktop kernel: igb 0000:17:00.0 eno1: igb: eno1 NIC Link is Up 1000 Mbps Full Duplex, Flow Control: RX/TX
Jul 03 17:31:55 Desktop systemd[1]: Starting Plex Media Server…
– Subject: A start job for unit plexmediaserver.service has begun execution
– A start job for unit plexmediaserver.service has begun execution.
Jul 03 17:31:55 Desktop systemd[1]: Started Plex Media Server.
– Subject: A start job for unit plexmediaserver.service has finished successfully
– A start job for unit plexmediaserver.service has finished successfully.
Jul 03 17:31:56 Desktop systemd[1]: plexmediaserver.service: Main process exited, code=exited, status=255/EXCEPTION
– An ExecStart= process belonging to unit plexmediaserver.service has exited.
Jul 03 17:31:56 Desktop systemd[1]: plexmediaserver.service: Failed with result ‘exit-code’.
– The unit plexmediaserver.service has entered the ‘failed’ state with result ‘exit-code’.
Jul 03 17:31:56 Desktop audit[5477]: AVC apparmor=“DENIED” operation=“open” profile=“snap.plexmediaserver.plexmediaserver” name="/proc/5477/mounts" pid=5477 comm=506C65782053637269707420486F73 requested_mask=“r” denied_mask=“r” fsuid=0 ouid=0
Jul 03 17:31:57 Desktop audit[4123]: AVC apparmor=“DENIED” operation=“mknod” profile=“snap.plexmediaserver.plexmediaserver” name="/dev/shm/WYXyrl" pid=4123 comm=506C6578204D656469612053657276 requested_mask=“c” denied_mask=“c” fsuid=0 ouid=0
Jul 03 17:31:57 Desktop kernel: audit: type=1400 audit(1593811917.693:40): apparmor=“DENIED” operation=“mknod” profile=“snap.plexmediaserver.plexmediaserver” name="/dev/shm/WYXyrl" pid=4123 comm=506C6578204D656469612053657276 requested_mask=“c” denied_mask=“c” fsuid=0 ouid=0
Jul 03 17:31:57 Desktop audit[6402]: AVC apparmor=“DENIED” operation=“capable” profile=“snap.plexmediaserver.plexmediaserver” pid=6402 comm=506C65782054756E65722053657276 capability=7 capname=“setuid”
Jul 03 17:31:57 Desktop kernel: audit: type=1400 audit(1593811917.897:42): apparmor=“DENIED” operation=“capable” profile=“snap.plexmediaserver.plexmediaserver” pid=6402 comm=506C65782054756E65722053657276 capability=7 capname=“setuid”
Jul 03 17:31:57 Desktop kernel: audit: type=1400 audit(1593811917.897:41): apparmor=“DENIED” operation=“capable” profile=“snap.plexmediaserver.plexmediaserver” pid=6402 comm=506C65782054756E65722053657276 capability=7 capname=“setuid”
Jul 03 17:31:57 Desktop kernel: audit: type=1400 audit(1593811917.897:43): apparmor=“DENIED” operation=“capable” profile=“snap.plexmediaserver.plexmediaserver” pid=6402 comm=506C65782054756E65722053657276 capability=7 capname=“setuid”
Jul 03 17:31:57 Desktop audit[6402]: AVC apparmor=“DENIED” operation=“capable” profile=“snap.plexmediaserver.plexmediaserver” pid=6402 comm=506C65782054756E65722053657276 capability=7 capname=“setuid”
Jul 03 17:31:57 Desktop audit[6402]: AVC apparmor=“DENIED” operation=“capable” profile=“snap.plexmediaserver.plexmediaserver” pid=6402 comm=506C65782054756E65722053657276 capability=7 capname=“setuid”
Jul 03 17:31:57 Desktop audit[6402]: AVC apparmor=“DENIED” operation=“mknod” profile=“snap.plexmediaserver.plexmediaserver” name="/dev/shm/tQqAOn" pid=6402 comm=506C65782054756E65722053657276 requested_mask=“c” denied_mask=“c” fsuid=0 ouid=0
Jul 03 17:31:57 Desktop kernel: audit: type=1400 audit(1593811917.909:44): apparmor=“DENIED” operation=“mknod” profile=“snap.plexmediaserver.plexmediaserver” name="/dev/shm/tQqAOn" pid=6402 comm=506C65782054756E65722053657276 requested_mask=“c” denied_mask=“c” fsuid=0 ouid=0
Jul 03 17:31:58 Desktop audit[6434]: AVC apparmor=“DENIED” operation=“open” profile=“snap.plexmediaserver.plexmediaserver” name="/proc/6434/mounts" pid=6434 comm=506C65782053637269707420486F73 requested_mask=“r” denied_mask=“r” fsuid=0 ouid=0
Jul 03 17:31:58 Desktop kernel: audit: type=1400 audit(1593811918.445:45): apparmor=“DENIED” operation=“open” profile=“snap.plexmediaserver.plexmediaserver” name="/proc/6434/mounts" pid=6434 comm=506C65782053637269707420486F73 requested_mask=“r” denied_mask=“r” fsuid=0 ouid=0
Jul 03 17:32:01 Desktop systemd[1]: plexmediaserver.service: Scheduled restart job, restart counter is at 1.
– Automatic restarting of the unit plexmediaserver.service has been scheduled, as the result for
Jul 03 17:32:01 Desktop systemd[1]: Stopped Plex Media Server.
– Subject: A stop job for unit plexmediaserver.service has finished
– A stop job for unit plexmediaserver.service has finished.
Jul 03 17:32:01 Desktop systemd[1]: Starting Plex Media Server…
– Subject: A start job for unit plexmediaserver.service has begun execution
– A start job for unit plexmediaserver.service has begun execution.
Jul 03 17:32:01 Desktop systemd[1]: Started Plex Media Server.
– Subject: A start job for unit plexmediaserver.service has finished successfully
– A start job for unit plexmediaserver.service has finished successfully.
Jul 03 17:32:01 Desktop systemd[1]: plexmediaserver.service: Main process exited, code=exited, status=255/EXCEPTION
– An ExecStart= process belonging to unit plexmediaserver.service has exited.
Jul 03 17:32:01 Desktop systemd[1]: plexmediaserver.service: Failed with result ‘exit-code’.
– The unit plexmediaserver.service has entered the ‘failed’ state with result ‘exit-code’.
Jul 03 17:32:06 Desktop systemd[1]: plexmediaserver.service: Scheduled restart job, restart counter is at 2.
– Automatic restarting of the unit plexmediaserver.service has been scheduled, as the result for
Jul 03 17:32:06 Desktop systemd[1]: Stopped Plex Media Server.
– Subject: A stop job for unit plexmediaserver.service has finished
– A stop job for unit plexmediaserver.service has finished.
Jul 03 17:32:06 Desktop systemd[1]: Starting Plex Media Server…
– Subject: A start job for unit plexmediaserver.service has begun execution
– A start job for unit plexmediaserver.service has begun execution.
Jul 03 17:32:06 Desktop systemd[1]: Started Plex Media Server.
– Subject: A start job for unit plexmediaserver.service has finished successfully
– A start job for unit plexmediaserver.service has finished successfully.
Jul 03 17:32:06 Desktop systemd[1]: plexmediaserver.service: Main process exited, code=exited, status=255/EXCEPTION
– An ExecStart= process belonging to unit plexmediaserver.service has exited.
Jul 03 17:32:06 Desktop systemd[1]: plexmediaserver.service: Failed with result ‘exit-code’.
– The unit plexmediaserver.service has entered the ‘failed’ state with result ‘exit-code’.
Jul 03 17:32:07 Desktop Plex Tuner Serv[6402]: Plex Tuner Service: Critical: libusb_init failed
Jul 03 17:32:11 Desktop systemd[1]: plexmediaserver.service: Scheduled restart job, restart counter is at 3.
– Automatic restarting of the unit plexmediaserver.service has been scheduled, as the result for
Jul 03 17:32:11 Desktop systemd[1]: Stopped Plex Media Server.
– Subject: A stop job for unit plexmediaserver.service has finished
– A stop job for unit plexmediaserver.service has finished.
Jul 03 17:32:11 Desktop systemd[1]: plexmediaserver.service: Start request repeated too quickly.
Jul 03 17:32:11 Desktop systemd[1]: plexmediaserver.service: Failed with result ‘exit-code’.
– The unit plexmediaserver.service has entered the ‘failed’ state with result ‘exit-code’.
Jul 03 17:32:11 Desktop systemd[1]: Failed to start Plex Media Server.
– Subject: A start job for unit plexmediaserver.service has failed
– A start job for unit plexmediaserver.service has finished with a failure.
Jul 03 17:33:22 Desktop sudo[7534]: krypticphish : TTY=pts/0 ; PWD=/home/krypticphish ; USER=root ; COMMAND=/usr/bin/systemctl status plexmediaserver.service
Jul 03 17:40:37 Desktop sudo[8105]: krypticphish : TTY=pts/1 ; PWD=/home/krypticphish ; USER=root ; COMMAND=/usr/bin/chmod 755 /mnt/Plex and more
Jul 03 17:40:57 Desktop sudo[8116]: krypticphish : TTY=pts/1 ; PWD=/home/krypticphish ; USER=root ; COMMAND=/usr/bin/chown -R krypticphish /mnt/Plex and more
Jul 03 17:41:14 Desktop sudo[8123]: krypticphish : TTY=pts/0 ; PWD=/home/krypticphish ; USER=root ; COMMAND=/usr/bin/systemctl start plexmediaserver.service
Jul 03 17:41:14 Desktop systemd[1]: Starting Plex Media Server…
– Subject: A start job for unit plexmediaserver.service has begun execution
– A start job for unit plexmediaserver.service has begun execution.
Jul 03 17:41:14 Desktop systemd[1]: Started Plex Media Server.
– Subject: A start job for unit plexmediaserver.service has finished successfully
– A start job for unit plexmediaserver.service has finished successfully.
Jul 03 17:41:14 Desktop systemd[1]: plexmediaserver.service: Main process exited, code=exited, status=255/EXCEPTION
– An ExecStart= process belonging to unit plexmediaserver.service has exited.
Jul 03 17:41:14 Desktop systemd[1]: plexmediaserver.service: Failed with result ‘exit-code’.
– The unit plexmediaserver.service has entered the ‘failed’ state with result ‘exit-code’.
Jul 03 17:41:19 Desktop systemd[1]: plexmediaserver.service: Scheduled restart job, restart counter is at 1.
– Automatic restarting of the unit plexmediaserver.service has been scheduled, as the result for
Jul 03 17:41:19 Desktop systemd[1]: Stopped Plex Media Server.
– Subject: A stop job for unit plexmediaserver.service has finished
– A stop job for unit plexmediaserver.service has finished.
Jul 03 17:41:19 Desktop systemd[1]: Starting Plex Media Server…
– Subject: A start job for unit plexmediaserver.service has begun execution
– A start job for unit plexmediaserver.service has begun execution.
Jul 03 17:41:19 Desktop systemd[1]: Started Plex Media Server.
– Subject: A start job for unit plexmediaserver.service has finished successfully
– A start job for unit plexmediaserver.service has finished successfully.
Jul 03 17:41:19 Desktop systemd[1]: plexmediaserver.service: Main process exited, code=exited, status=255/EXCEPTION
– An ExecStart= process belonging to unit plexmediaserver.service has exited.
Jul 03 17:41:19 Desktop systemd[1]: plexmediaserver.service: Failed with result ‘exit-code’.
– The unit plexmediaserver.service has entered the ‘failed’ state with result ‘exit-code’.
Jul 03 17:41:24 Desktop systemd[1]: plexmediaserver.service: Scheduled restart job, restart counter is at 2.
– Automatic restarting of the unit plexmediaserver.service has been scheduled, as the result for
Jul 03 17:41:24 Desktop systemd[1]: Stopped Plex Media Server.
– Subject: A stop job for unit plexmediaserver.service has finished
– A stop job for unit plexmediaserver.service has finished.
Jul 03 17:41:24 Desktop systemd[1]: Starting Plex Media Server…
– Subject: A start job for unit plexmediaserver.service has begun execution
– A start job for unit plexmediaserver.service has begun execution.
Jul 03 17:41:24 Desktop systemd[1]: Started Plex Media Server.
– Subject: A start job for unit plexmediaserver.service has finished successfully
– A start job for unit plexmediaserver.service has finished successfully.
Jul 03 17:41:24 Desktop systemd[1]: plexmediaserver.service: Main process exited, code=exited, status=255/EXCEPTION
– An ExecStart= process belonging to unit plexmediaserver.service has exited.
Jul 03 17:41:24 Desktop systemd[1]: plexmediaserver.service: Failed with result ‘exit-code’.
– The unit plexmediaserver.service has entered the ‘failed’ state with result ‘exit-code’.
Jul 03 17:41:29 Desktop systemd[1]: plexmediaserver.service: Scheduled restart job, restart counter is at 3.
– Automatic restarting of the unit plexmediaserver.service has been scheduled, as the result for
Jul 03 17:41:29 Desktop systemd[1]: Stopped Plex Media Server.
– Subject: A stop job for unit plexmediaserver.service has finished
– A stop job for unit plexmediaserver.service has finished.
Jul 03 17:41:29 Desktop systemd[1]: plexmediaserver.service: Start request repeated too quickly.
Jul 03 17:41:29 Desktop systemd[1]: plexmediaserver.service: Failed with result ‘exit-code’.
– The unit plexmediaserver.service has entered the ‘failed’ state with result ‘exit-code’.
Jul 03 17:41:29 Desktop systemd[1]: Failed to start Plex Media Server.
– Subject: A start job for unit plexmediaserver.service has failed
– A start job for unit plexmediaserver.service has finished with a failure.
Jul 03 17:41:30 Desktop sudo[8230]: krypticphish : TTY=pts/0 ; PWD=/home/krypticphish ; USER=root ; COMMAND=/usr/bin/systemctl status plexmediaserver.service
Jul 03 17:43:32 Desktop sudo[8412]: krypticphish : TTY=pts/2 ; PWD=/home/krypticphish ; USER=root ; COMMAND=/usr/bin/nano /etc/default/plexmediaserver
Jul 03 17:43:59 Desktop sudo[8431]: krypticphish : TTY=pts/1 ; PWD=/home/krypticphish ; USER=root ; COMMAND=/usr/bin/chown -R plex /mnt/Plex and more
Jul 03 17:44:12 Desktop sudo[8437]: krypticphish : TTY=pts/0 ; PWD=/home/krypticphish ; USER=root ; COMMAND=/usr/bin/systemctl start plexmediaserver.service
Jul 03 17:44:12 Desktop systemd[1]: Starting Plex Media Server…
– Subject: A start job for unit plexmediaserver.service has begun execution
– A start job for unit plexmediaserver.service has begun execution.
Jul 03 17:44:12 Desktop systemd[1]: Started Plex Media Server.
– Subject: A start job for unit plexmediaserver.service has finished successfully
– A start job for unit plexmediaserver.service has finished successfully.
Jul 03 17:44:12 Desktop systemd[1]: plexmediaserver.service: Main process exited, code=exited, status=255/EXCEPTION
– An ExecStart= process belonging to unit plexmediaserver.service has exited.
Jul 03 17:44:12 Desktop systemd[1]: plexmediaserver.service: Failed with result ‘exit-code’.
– The unit plexmediaserver.service has entered the ‘failed’ state with result ‘exit-code’.
Jul 03 17:44:17 Desktop systemd[1]: plexmediaserver.service: Scheduled restart job, restart counter is at 1.
– Automatic restarting of the unit plexmediaserver.service has been scheduled, as the result for
Jul 03 17:44:17 Desktop systemd[1]: Stopped Plex Media Server.
– Subject: A stop job for unit plexmediaserver.service has finished
– A stop job for unit plexmediaserver.service has finished.
Jul 03 17:44:17 Desktop systemd[1]: Starting Plex Media Server…
– Subject: A start job for unit plexmediaserver.service has begun execution
– A start job for unit plexmediaserver.service has begun execution.
Jul 03 17:44:17 Desktop systemd[1]: Started Plex Media Server.
– Subject: A start job for unit plexmediaserver.service has finished successfully
– A start job for unit plexmediaserver.service has finished successfully.
Jul 03 17:44:17 Desktop systemd[1]: plexmediaserver.service: Main process exited, code=exited, status=255/EXCEPTION
– An ExecStart= process belonging to unit plexmediaserver.service has exited.
Jul 03 17:44:17 Desktop systemd[1]: plexmediaserver.service: Failed with result ‘exit-code’.
– The unit plexmediaserver.service has entered the ‘failed’ state with result ‘exit-code’.
Jul 03 17:44:21 Desktop sudo[8509]: krypticphish : TTY=pts/0 ; PWD=/home/krypticphish ; USER=root ; COMMAND=/usr/bin/systemctl enable plexmediaserver.service
Jul 03 17:44:22 Desktop systemd[1]: plexmediaserver.service: Scheduled restart job, restart counter is at 2.
– Automatic restarting of the unit plexmediaserver.service has been scheduled, as the result for
Jul 03 17:44:22 Desktop systemd[1]: Stopped Plex Media Server.
– Subject: A stop job for unit plexmediaserver.service has finished
– A stop job for unit plexmediaserver.service has finished.
Jul 03 17:44:22 Desktop systemd[1]: Starting Plex Media Server…
– Subject: A start job for unit plexmediaserver.service has begun execution
– A start job for unit plexmediaserver.service has begun execution.
Jul 03 17:44:22 Desktop systemd[1]: Started Plex Media Server.
– Subject: A start job for unit plexmediaserver.service has finished successfully
– A start job for unit plexmediaserver.service has finished successfully.
Jul 03 17:44:22 Desktop systemd[1]: plexmediaserver.service: Main process exited, code=exited, status=255/EXCEPTION
– An ExecStart= process belonging to unit plexmediaserver.service has exited.
Jul 03 17:44:22 Desktop systemd[1]: plexmediaserver.service: Failed with result ‘exit-code’.
– The unit plexmediaserver.service has entered the ‘failed’ state with result ‘exit-code’.
Jul 03 17:44:24 Desktop sudo[8570]: krypticphish : TTY=pts/0 ; PWD=/home/krypticphish ; USER=root ; COMMAND=/usr/bin/systemctl status plexmediaserver.service
Jul 03 17:44:28 Desktop systemd[1]: plexmediaserver.service: Scheduled restart job, restart counter is at 3.
– Automatic restarting of the unit plexmediaserver.service has been scheduled, as the result for
Jul 03 17:44:28 Desktop systemd[1]: Stopped Plex Media Server.
– Subject: A stop job for unit plexmediaserver.service has finished
– A stop job for unit plexmediaserver.service has finished.
Jul 03 17:44:28 Desktop systemd[1]: Starting Plex Media Server…
– Subject: A start job for unit plexmediaserver.service has begun execution
– A start job for unit plexmediaserver.service has begun execution.
Jul 03 17:44:28 Desktop systemd[1]: Started Plex Media Server.
– Subject: A start job for unit plexmediaserver.service has finished successfully
– A start job for unit plexmediaserver.service has finished successfully.
Jul 03 17:44:28 Desktop systemd[1]: plexmediaserver.service: Main process exited, code=exited, status=255/EXCEPTION
– An ExecStart= process belonging to unit plexmediaserver.service has exited.
Jul 03 17:44:28 Desktop systemd[1]: plexmediaserver.service: Failed with result ‘exit-code’.
– The unit plexmediaserver.service has entered the ‘failed’ state with result ‘exit-code’.
Jul 03 17:44:33 Desktop systemd[1]: plexmediaserver.service: Scheduled restart job, restart counter is at 4.
– Automatic restarting of the unit plexmediaserver.service has been scheduled, as the result for
Jul 03 17:44:33 Desktop systemd[1]: Stopped Plex Media Server.
– Subject: A stop job for unit plexmediaserver.service has finished
– A stop job for unit plexmediaserver.service has finished.
Jul 03 17:44:33 Desktop systemd[1]: Starting Plex Media Server…
– Subject: A start job for unit plexmediaserver.service has begun execution
– A start job for unit plexmediaserver.service has begun execution.
Jul 03 17:44:33 Desktop systemd[1]: Started Plex Media Server.
– Subject: A start job for unit plexmediaserver.service has finished successfully
– A start job for unit plexmediaserver.service has finished successfully.
Jul 03 17:44:33 Desktop systemd[1]: plexmediaserver.service: Main process exited, code=exited, status=255/EXCEPTION
– An ExecStart= process belonging to unit plexmediaserver.service has exited.
Jul 03 17:44:33 Desktop systemd[1]: plexmediaserver.service: Failed with result ‘exit-code’.
– The unit plexmediaserver.service has entered the ‘failed’ state with result ‘exit-code’.
Jul 03 17:44:34 Desktop sudo[8630]: krypticphish : TTY=pts/0 ; PWD=/home/krypticphish ; USER=root ; COMMAND=/usr/bin/systemctl status plexmediaserver.service
Jul 03 17:44:38 Desktop systemd[1]: plexmediaserver.service: Scheduled restart job, restart counter is at 5.
– Automatic restarting of the unit plexmediaserver.service has been scheduled, as the result for
Jul 03 17:44:38 Desktop systemd[1]: Stopped Plex Media Server.
– Subject: A stop job for unit plexmediaserver.service has finished
– A stop job for unit plexmediaserver.service has finished.
Jul 03 17:44:38 Desktop systemd[1]: plexmediaserver.service: Start request repeated too quickly.
Jul 03 17:44:38 Desktop systemd[1]: plexmediaserver.service: Failed with result ‘exit-code’.
– The unit plexmediaserver.service has entered the ‘failed’ state with result ‘exit-code’.
Jul 03 17:44:38 Desktop systemd[1]: Failed to start Plex Media Server.
– Subject: A start job for unit plexmediaserver.service has failed
– A start job for unit plexmediaserver.service has finished with a failure.
Jul 03 17:46:05 Desktop sudo[8756]: krypticphish : TTY=pts/0 ; PWD=/home/krypticphish ; USER=root ; COMMAND=/usr/bin/systemctl status plexmediaserver.service

This is running an an AMD Ryzen 5 64 bit, if you need any other info let me know. I am assuming its probably a permissions issue. I am still working through understanding the permissions guide. I think I gave proper permissions to the plex user, but I am new to linux so I may have messed something up

.

Drop all the snap and other “fancy additions” and simply install the Plex Media Server directly on that Linux system.
You can install the public releases using a repository… this way your OS can take care of updating it for you.
https://support.plex.tv/articles/200288586-installation/
https://support.plex.tv/articles/235974187-enable-repository-updating-for-supported-linux-server-distributions/
https://support.plex.tv/articles/200288606-mounting-ntfs-drives-on-linux/
The Linux tips & tricks posts can also be super helpful with some common roadbumps

If you’re not familiar with Linux… keep it simple or you’ll get lost fast.
This can include sticking with a more common platform instead of going for a more fancy one… those tend to be much better supported and you’ll find more documentation.

PS: considering you’re using an AMD Ryzen CPU, I’ve re-tagged your thread (AMD != ARM)

Thank you. I will review all of this. When you say sticking with a common platform over a fancy one, are you referring to my choice of UbuntuDDE? I have been considering switching to kubuntu.

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