How to use Freenas as server for duplicity backups

[keithg]

I have a freenas 9.3 server. I also have 4 users with identical UIDs on the freenas and all Linux clients. I am using nfsv4 and am mounting a folder as the backup folder for each client. I can do a 'first backup' and it all works with an empty directry. When I try to run duplicity again to do an incremental backup, I get permission errors as the user running duplicity is 1002 and the folder and all files are nobody:nogroup. Duplicity tried to read the file and gets errors or tries to write and gets errors.

I am guessing I am not doing this correctly. How is one supposed to do this so that the folder is mounted via nfsv4 and allow the automatic backup to run?

When I run it the second time I get:

Permission denied when trying to create ‘/duplicity-inc.20150627T085244Z.to.20150713T012310Z.vol1.difftar.gz​

Any help appreciated.

Keith

 

[Robert Trevellyan]

One approach with NFS is to set the Mapall User and Mapall Group for the share to match the ownership of the dataset you're sharing.

 

[keithg]

And... last night I figured out what was wrong. The folder on the nas did not have 'w' permissions for anything other than owner... I fixed that, remounted it and now it will create backups. Permissions are a headache to get right.

Sorry for the interruption.

Keith

 

[Robert Trevellyan]

Glad you figured it out.