I have reopened the thread.
We can continue here. The problem is not related to DSM 7 Plex installation now…
Please show me what you have :
- /etc/fstab
- what the
sudo mount -avt nfsshows?
Hi @ChuckPa, thanks for the help.
This is what I get:
# /etc/fstab: static file system information.
#
# Use 'blkid' to print the universally unique identifier for a
# device; this may be used with UUID= as a more robust way to name devices
# that works even if disks are added and removed. See fstab(5).
#
# <file system> <mount point> <type> <options> <dump> <pass>
# / was on /dev/nvme0n1p2 during installation
UUID=3856b5ba-0b69-4ab6-9c3e-e82865bd556b / ext4 errors=remount-ro 0 1
# /boot/efi was on /dev/nvme0n1p1 during installation
#UUID=689B-78E6 /boot/efi vfat umask=0077 0 1
/swapfile none swap sw 0 0
192.168.1.160:/volume1/Film /mount/nas/Film nfs defaults,auto,rw,nofail 0 0
192.168.1.160:/volume1/Serie\040TV\040DS918 /mount/nas/Serie_TV nfs defaults,auto,rw,nofail,bg 0 0
192.168.1.160:/volume1/Video\040GoPro /mount/nas/Video_GoPro nfs defaults,auto,rw,nofail,bg 0 0
192.168.1.160:/volume1/photo /mount/nas/Foto nfs defaults,auto,rw,nofail,bg 0 0
UUID=689B-78E6 /boot/efi vfat defaults 0 1
/ : ignored
none : ignored
/mount/nas/Film : already mounted
/mount/nas/Serie_TV : already mounted
/mount/nas/Video_GoPro : already mounted
/mount/nas/Foto : already mounted
/boot/efi : ignored
@ChuckPa as you can see, the folders are mounted. Could it be a permission issue? How can I do?
1 .Unmount the Synology volumes (sudo umount -avt nfs4 ; sudo umount -avt nfs)
2 . force perms on the mount point directories (sudo chmod 755 /mount/nas)
3. Now mount again
(the host must grant basic permission to the mount point directories. You must then, as root, look at what permissions the Synology exports. Will likely be 700/600)
Thanks @ChuckPa but I’m not skilled enough to follow this steps 
There’s a time when you should just give up
(this F…ing DSM7 broke my PMS Photo folder connection on the NAS and destroyed my second PMS, the Linux Nuc).
So be it.
Hi again @ChuckPa, after a nice bike tour, I decided that I have to solve the problem…
As you did a couple years ago, can you please help me with a step-by-step guide, in order to regain access to my Nas, from my PMS running on a Linux NUC?
Thank you, grazie mille!
Thanks @ChuckPa , but…
/ : ignored
none : ignored
/mount/nas/Film : already mounted
/mount/nas/Serie_TV : already mounted
/mount/nas/Video_GoPro : already mounted
/mount/nas/Foto : already mounted
/boot/efi : ignored
my folders are already mounted, or am I missing something?
After the DSM7 upgrade my NUC can’t access the folders anymore. But they seem mounted.
@ChuckPa a quick update. I changed the NFS perms inside the MOVIE folder, using “maps all the users as admin” inside the SQUASH field and… suddenly my PMS on the Linux NUC find the media. Is it a secure choice? Or is it a very risky one?
Hi, may I reopen this thread? I’d like to ask again for a little help 
Is @ChuckPa willing to help me again? My Nuc doesn’t see the files inside two folders (the ones with the “wrong” names…) Inside the Computer folder I have “mount” and inside “mount” I have this structure:
Nas Folder:
Film Folder
Serie TV Folder
Video_GoPro Folder
Film is full of my files, stored inside my Nas
Serie Tv and Video GoPro are empty. It started yesterday.
This is what I get:
sudo mount -avt nfs
[sudo] password di username:
/ : ignored
none : ignored
/mount/nas/Film : already mounted
mount.nfs: trying text-based options ‘bg,vers=4.2,addr=NAS IPclientaddr=NUC IP’
mount.nfs: mount(2): Protocol not supported
mount.nfs: trying text-based options ‘bg,vers=4,minorversion=1,addr=NAS IP,clientaddr=NUC IP’
mount.nfs: mount(2): Protocol not supported
mount.nfs: trying text-based options ‘bg,vers=4,addr=NAS IP,clientaddr=NUC IP’
mount.nfs: mount(2): Protocol not supported
mount.nfs: trying text-based options ‘bg,addr=NAS IP’
mount.nfs: prog 100003, trying vers=3, prot=6
mount.nfs: trying NAS IP prog 100003 vers 3 prot TCP port 2049
mount.nfs: prog 100005, trying vers=3, prot=17
mount.nfs: trying NAS IP prog 100005 vers 3 prot UDP port 892
mount.nfs: mount(2): Permission denied
mount.nfs: Protocol not supported
mount.nfs: trying text-based options ‘bg,vers=4.2,addr=NAS IP,clientaddr=NUC IP’
mount.nfs: mount(2): Protocol not supported
mount.nfs: trying text-based options ‘bg,vers=4,minorversion=1,addr=NAS IP,clientaddr=NUC IP’
mount.nfs: mount(2): Protocol not supported
mount.nfs: trying text-based options ‘bg,vers=4,addr=NAS IP,clientaddr=NUC IP’
mount.nfs: mount(2): Protocol not supported
mount.nfs: trying text-based options ‘bg,addr=NAS IP’
mount.nfs: prog 100003, trying vers=3, prot=6
mount.nfs: trying NAS IP prog 100003 vers 3 prot TCP port 2049
mount.nfs: prog 100005, trying vers=3, prot=17
mount.nfs: trying NAS IP prog 100005 vers 3 prot UDP port 892
mount.nfs: mount(2): Permission denied
mount.nfs: Protocol not supported
/mount/nas/Foto : already mounted
/boot/efi : ignored
What can I do? Thanks, as always.
May I see the /etc/fstab mount statements?
Hi ChucKPA, nice to meet you again!
Here you are:
# /etc/fstab: static file system information.
#
# Use 'blkid' to print the universally unique identifier for a
# device; this may be used with UUID= as a more robust way to name devices
# that works even if disks are added and removed. See fstab(5).
#
# <file system> <mount point> <type> <options> <dump> <pass>
# / was on /dev/nvme0n1p2 during installation
UUID=3856b5ba-0b69-4ab6-9c3e-e82865bd556b / ext4 errors=remount-ro 0 1
# /boot/efi was on /dev/nvme0n1p1 during installation
#UUID=689B-78E6 /boot/efi vfat umask=0077 0 1
/swapfile none swap sw 0 0
192.168.1.160:/volume1/Film /mount/nas/Film nfs defaults,auto,rw,nofail 0 0
192.168.1.160:/volume1/Serie040TV040DS918 /mount/nas/Serie_TV nfs defaults,auto,rw,nofail,bg 0 0
192.168.1.160:/volume1/Video040GoPro /mount/nas/Video_GoPro nfs defaults,auto,rw,nofail,bg 0 0
192.168.1.160:/volume1/photo /mount/nas/Foto nfs defaults,auto,rw,nofail,bg 0 0
#UUID=689B-78E6 /boot/efi vfat defaults 0 1
UUID=689B-78E6 /boot/efi vfat defaults 0 1
MODERATOR EDIT: Added formatting for legibility
On the syno, do you have a username for plex ?
If not, have you considered adding sec=sys mount option?
I had the user Plex, but now it’s disabled (probably since DSM7, if I recall correctly).
And everything has been working smoothly, since then. Suddenly, probably this week, something went wrong (the last file added on Plex/NUC is 2022-09-16).
What is sec=sys?
The NUC Register says: failed to mount /mount/nas/Serie_TV
and failed to mount /mount/nas/Video_GoPro
man 5 nfs
sec=flavors A colon-separated list of one or more security flavors to use for accessing files on the mounted ex‐
port. If the server does not support any of these flavors, the mount operation fails. If sec= is not
specified, the client attempts to find a security flavor that both the client and the server supports.
Valid flavors are none, sys, krb5, krb5i, and krb5p. Refer to the SECURITY CONSIDERATIONS section for
details.
sec=sys tells NFS that each host will hand the security.
When I use this, I set “Read” = “everybody”
Check the NFS rule and make certain you’re not getting ‘squashed’ by the new DSM 7 security
/volume1/Video\040GoPro
Don’t forget to escape the octal
Spaces in shared folder names isn’t cool for this reason
When the mounts and permissions on the nas (this is the syno), it works out.
A decision you might need to make with DSM 7 is whether to break the ACL on the top of the shared folder but retain it for all contents.
I break it (put linux 755 permissions on /volume1/movies) but let everything else have ACLs.
chuck@ds418:/volume1/movies$ ls -la
total 88
drwxr-xr-x 21 chuck users 4096 Jun 6 14:34 .
drwxr-xr-x 50 root root 4096 Sep 17 23:20 ..
drwxrwxrwx+ 2 chuck users 4096 Sep 2 2018 '47 Ronin (2013)'
drwxrwxrwx+ 2 chuck users 4096 Sep 2 2018 'A Beautiful Mind (2001)'
drwxrwxrwx+ 2 chuck users 4096 Sep 2 2018 'A Good Day to Die Hard (2013)'
drwxrwxrwx+ 2 chuck users 4096 Sep 2 2018 'A Shot in the Dark (1964)'
drwxrwxrwx+ 2 chuck users 4096 Sep 2 2018 'Back to the Future Part II (1989)'
drwxrwxrwx+ 2 chuck users 4096 Jun 5 18:16 'Batman and Harley Quinn (2017)'
drwxrwxrwx+ 2 chuck users 4096 Sep 2 2018 'Bicentennial Man (1999)'
drwxrwxrwx+ 2 chuck users 4096 Nov 5 2021 'Castaway (1986)'
drwxrwxrwx+ 2 chuck users 4096 Sep 2 2018 'Chicago and Earth, Wind Fire Live at the Greek Theatre (2005)'
drwxrwxrwx+ 2 chuck users 4096 Sep 2 2018 'Conquest of the Planet of the Apes (1972)'
drwxrwxrwx+ 2 chuck users 4096 Sep 2 2018 'Dark Star (1974)'
drwxrwxrwx+ 2 chuck users 4096 Sep 2 2018 'Dead Poets Society (1989)'
drwxrwxrwx+ 2 chuck users 4096 Sep 2 2018 'Dracula Dead and Loving It (1995)'
drwxrwxrwx+ 3 chuck users 4096 Aug 13 00:30 @eaDir
drwxrwxrwx+ 2 chuck users 4096 Sep 2 2018 'Eagle Eye (2008)'
drwxrwxrwx+ 3 chuck users 4096 Jun 6 14:54 'Gemini Man (2019)'
drwxrwxrwx+ 2 chuck users 4096 Jul 15 2018 'George Carlin Carlin on Campus (1984)'
drwxrwxrwx+ 2 chuck users 4096 Sep 17 2017 'xXx (2002)'
drwxrwxrwx+ 2 chuck users 4096 Sep 17 2017 'Young Frankenstein (1974)'
chuck@ds418:/volume1/movies$
Mounting from my NUC to my Ubuntu server NAS,
[chuck@lizum ~.2001]$ ls -la /glock/media/movies
total 284
drwxr-xr-x 236 chuck chuck 16384 Aug 15 19:09 ./
drwxr-xr-x 44 chuck chuck 8192 Sep 12 00:56 ../
drwxrwxr-x 2 chuck chuck 43 Feb 26 2022 13 Minutes (2021)/
drwxr-xr-x 2 chuck chuck 37 May 15 2021 2067 (2020)/
drwxr-xr-x 2 chuck chuck 39 Jun 6 2021 4D Man (1959)/
drwxrwxr-x 2 chuck chuck 46 Aug 2 02:19 Above the Law (1988)/
-rw-r--r-- 1 chuck chuck 249 Sep 13 2015 addeleted
drwxr-xr-x 2 chuck chuck 44 Jan 3 2020 After Earth (2013)/
drwxr-xr-x 2 chuck chuck 47 Jan 3 2020 After the Dark (2014)/
drwxrwxr-x 2 chuck chuck 40 Aug 14 13:57 Amistad (1997)/
drwxrwxr-x 2 chuck chuck 55 Aug 2 02:19 Angels in the Outfield (1994)/
drwxr-xr-x 2 chuck chuck 40 Mar 1 2021 Archive (2020)/
drwxr-xr-x 2 chuck chuck 42 Mar 5 2021 Assassins (2021)/
drwxr-xr-x 2 chuck chuck 61 Jan 3 2020 Atlas Shrugged II The Strike (2012)/
drwxr-xr-x 2 chuck chuck 54 Jan 3 2020 Atlas Shrugged Part I (2011)/
drwxr-xr-x 2 chuck chuck 73 Jan 3 2020 Atlas Shrugged Part III Who is John Galt (2014)/
drwxrwxr-x 2 chuck chuck 47 Aug 2 02:19 Back to School (1986)/
drwxrwxr-x 2 chuck chuck 38 Aug 2 02:19 Basic (2003)/
drwxr-xr-x 2 chuck chuck 68 Jan 3 2020 Battlestar Galactica Blood & Chrome (2012)/
drwxrwxr-x 2 chuck chuck 67 May 15 01:53 Behind Enemy Lines II Axis of Evil (2006)/
drwxr-xr-x 2 chuck chuck 42 Jun 14 2019 Bewitched (2005)/
Unfortunately, for me is too difficult to understand. Everything worked perfectly and now… two folders are empty, on the NUC.
Now, I’ve edited the fstab… I escaped the octal, and it seems to work!!! Why this f…ing \ became / is a mistery.
/etc/fstab doesn’t like quotes and spaces are field delimiters
If you want to embed a space in the target name, you have to octal escape it
(Yes, we’re going all the way back to the early unix days where this came from)
IF you can migrate yourself away from “Names With Spaces”
to NamesWithoutSpaces (camelHump names), you’ll be better off and they’re still quite readable. (I write all my code with MixedCase variable names)
My rule of thumb - No configuration changes after the first 
1 Like
Hi everyone, and @ChuckPa especially
Today, suddenly, my Plex Server on my NUC (Ubuntu) failed to start. No more Plex Server. How can I do to try to solve the issue? Thanks!
Make a tar.gz of the “Logs” directory under “Plex Media Server”.
Attach it here.
