Permission denied (os error 13) after adding synology nfs share

[deg]

Hi,
I've some problems adding my synology nas nfs share as a proxmox backup server datastore.
The nfs share is mounted in "/mnt/backup-nfs" and seems to be accessible without any problems. Also "df -h" shows the share:


After adding the share in pbs as a datastore it seems to work without any error messages. It also creates the ".lock" File and the ".chunks" folder:


But after completion of adding the datastore following error appears:


After hours of searching for a solution I'm not sure whats wrong. Maybe someone of you had the same issue...

Thanks in advance!

 

[dcsapak]

the datastore directory has to be writable by the 'backup' user of the pbs. is it?
you can show the current files/modes/permissions with:

ls -l /mnt/backup-nfs

 

[deg]

the datastore directory has to be writable by the 'backup' user of the pbs. is it?
you can show the current files/modes/permissions with:

ls -l /mnt/backup-nfs

Thank you for your reply!

The command shows: "total 0"
Whatever this means?

 

[Dunuin]

That means no files/folders found in that NFS mountpoint. So its empty.

 

[dcsapak]

sorry i meant to write:

ls -la /mnt/backup-nfs

this will also show the owner/mode of the dir itself

 

[deg]

sorry i meant to write:

ls -la /mnt/backup-nfs

this will also show the owner/mode of the dir itself

Ah okay...so here is your new output.

drwxrwxrwx   1    backup backup        36 Jul 18   08:34   .
drwxr-xr-x   3    root   root        4096 Jul  8   13:20   ..
drwxrwxrwx   1    backup backup    524288 Jul 18   08:35   .chunks
-rw-r--r--   1    backup backup         0 Jul 18   08:34   .lock

 

[dcsapak]

ok that looks normal... could you try to restart the proxmox-backup-proxy/proxmox-backup-api daemons once? also what does the command
'mount' say?

 

[deg]

ok that looks normal... could you try to restart the proxmox-backup-proxy/proxmox-backup-api daemons once? also what does the command
'mount' say?

Did a restart from both services, but didn't change anything.
Here is the output from 'mount' (cut down to NAS mountpoint):

10.1.1.27:/volume1/Proxmox-Backup on /mnt/backup-nfs type nfs4 (rw,relatime,vers=4.1,rsize=131072,wsize=131072,namlen=255,hard,proto=tcp,timeo=600,retrans=2,sec=sys,clientaddr=10.1.1.3,local_lock=none,addr=10.1.1.27)

 

[dcsapak]

local_lock=none

du könntest mal versuchen mit 'local_lock=all' zu mounten, vielleicht kann der server das nicht?

 

[deg]

du könntest mal versuchen mit 'local_lock=all' zu mounten, vielleicht kann der server das nicht?

Where do I add the parameter?

(Was hat mich verraten? xD Ich schreibe mal auf englisch weiter, falls jemand mal das selbe Problem hat)

 

[dcsapak]

Where do I add the parameter?

to where you added the mount (e.g. /etc/fstab, systemd mount unit, etc)

(Was hat mich verraten? xD Ich schreibe mal auf englisch weiter, falls jemand mal das selbe Problem hat)

ah sorry, idk why i answered in german (probably just looked at the second screenshot in the original post) but yes, let's continue in english...