For what it’s worth, on DSM 7 I don’t see a “Custom” option either on Permissions, although my Plex is working just fine… just throwing that out there to muddy the waters some more 
Dammit I must need to reboot my brain or something because I just looked again and it’s there, plain as day. This is what happens when you don’t have mental challenges to keep you sharp… IQ starts to drop.
Looking at the permissions on mine, I do have full RW turned on but none of the admin settings (take ownership, change permissions) yet everything seems to be working properly (I’ve done TV recordings, deletions, updated metadata etc) - are the Admin settings required? If so, why?
Are you signed in as user admin or as a user with administrative privilege ?
Synology RC version has a problem in there somewhere.
I haven’t figured it out fully . Also, several of have observed that REBOOTING DSM 7 after the firmware upgrade fixes the CUSTOM issue – and it is tied to username sensitivity
Yes, I do. As I said everything works fine. I was just wondering what the reason for needing the Administration options enabled is, as they are not on mine but Plex works 100%.
@ChuckPA - my own personal user account has admin privileges, however it’s the permissions for the PlexMediaServer account I’m curious about as that does not have the Administration options checked for it.
Phil,
DSM 7 changed everything about user accounts and applications.
As I stated in my Forum Prevew announcement.
- The user we run as is now is an internal system user called
PlexMediaServer
This was done because Synology created their own “class” of users for Linux.
- Traditionally - System accounts numbered UID 1 → 1024
- Normal Users - 1025 → 65535
- System Internal User - 131072+
All applications were moved form Normal user class → System Internal User class
When they did this, they also created the equivalent of a “Poor Man’s Container”.
- The app has no ‘admin’ privileges whatsoever. I don’t even install PMS anymore. It does all the setup.
- The app must request any and all access from DSM as it launches
- They further restricted everything they possibly could .
What has happened, in a nutshell, DSM 7 is no longer an easy platform to write applications for.
I’ve been in near-constant dialog with Synology about their continued efforts to minimize DSM.
There are more breaking changes coming for DSM 7.
If I, as a Synology owner/customer, were to share my opinion, I would think they don’t want to spend any effort on supporting it anymore. Such a posture would be consistent with statements made by their CEO a few years ago where they announced they intend to focus on the Enterprise market and don’t see themselves as being focused in the consumer market anymore.
I’ve looked around and not found any references to Synology in the Enterprise space do I’d be curious to see one of their Enterprise grade petabyte solutions.
Thanks Chuck, I understand what you’re saying. All I was curious about - my PlexMediaServer user does not have the Administration rights, ie it can’t change permissions or take ownership. This appears to be not critical as my Plex works. So my question is, does the PlexMediaServer user actually need those rights to function correctly? Why would the PlexMediaServer user need to change permissions or take ownership of the media files?
When all else fails ---- RTFM 
I deliberately show:
All three result in the ACL needed.
After PMS has been migrated from the Plex share – OR – if you wish to start over (delete the Plex “Library”), you can do as you wish.
Hi,
Plex 1.23.4.4712
DSM 7 RC
Everything works fine except for the photo library which remains empty with the shared folder “photo”.
The permissions are normally well set but Plex sees nothing.
A limitation or a known issue? Or I miss something ?
Thanks for your help.
Not enough, the default “photo” folder is a bit special.
Before that : « If you previously installed Photo Station and updated from DSM 6.2 or below to DSM 7.0, the shared folder “photo” will enter UNIX mode. You need to convert sub-folders of “photo” to Windows ACL mode to assign specific permissions in File Station. »
I am also:
Plex 1.23.4.4712
DSM 7 RC
I have noticed huge issues with HW transcoding so I am SW transcoding. Can’t even handle a 1080p to 720p on the 920+ with 97% CPU utilizations. Last night, on DSM 6.0, it was handling 1080p transcodes easily. I am assuming that the DSM 6 native app had HW figured out and that is not the case now.
Yes, identical. When I start a stream to transcode with those settings, greatest I see the CPU get to is 20%. Additionally, the Transcode speed in Tautulli rarely hits 1x. It is stuck at 0.8x even on low Mbps animated movie.
I have spent most of today installing and uninstall Plex based on the various packages I found in this thread plus all that permission fiddling. Did I break something in the process?
Fast forward or Rewind more than 30 sec causes an endless circle spin. In some cases I have to reboot my NAS. When I hit ‘Resume’ half the time the picture is black. And that’s just the start. v7 is a train wreck.
Synology needs to write some code that will backup settings as much as possible, wipe the firmware and install v6 back on the device.
Too late
1 Like
Do you have an existing DSM 7 installation?
If so, you will likely be OK…
If you’re trying to migrate from DSM 6 → DSM 7 then you MUST WAIT.
There is a major regression in DSM 7 build 41882
Somehow your server got a new UUID – indeed a new server instance.
First, a question or two
Did you actually have Plex running & migrated on DSM 7 ?
If not, how far into the migration did you get ?
What I see in your Plex account is both the DSM 6 and DSM 7 instances you see there.
DSM 6 was seen yestereday (Saturday).
DSM 7 was seen a few hours ago.
Thanks for the reply @ChuckPa - I upgraded to DSM 7.0 today - and only after Plex failed did I come to these forums and learn what I know now. So, no Plex installed and rendered the web interface after the DSM 7.0 upgrade - but it never worked (server couldn’t connect - libraries weren’t reachable).
I don’t feel like any migration ever happened (the only thing that took more than 30 seconds at any point was the changing of permissions for Admin/Read/Write access for the PlexMediaServer internal account.
I’m sensing that a changed UUID means I’m screwed - that no migration is possible since my server is now considered another (new and different) server than the one before, correct? If not, is there anything I can do?
Doug,
you’re not “screwed” but the nail gun did get loaded up and put to ready 
When you install PMS on DSM 7, the following should have happened.
- DSM 6 gets removed
- The installer starts making you jump through hoops with Permissions settings to get everything right. (which, during the final step of ‘customize’, can take a while but then succeed)
- The last part of that install is the actual “migrate”.
- During part 2 of migration, it checks all the metadata to make certain no old/bad agent data is stored. (this takes a while again)
- When that’s done, the actual move into DSM 7 takes bout 3 seconds.
Did you get a change to review the DSM 7 Migration steps in
(Post #6 is the important one which shows the steps and pop-up after each step)
