I have a VPS configured with a webhost which I need to backup regularly. I have also purchased a 'backup disk' which is simply an NFS mount on another of their servers.

I have configured rsnapshot to run 4hourly | daily | weekly backups and another script to tar the backups into daily archives with logs.

My issue is that the NFS share is mounted with root_squash option, meaning that my files/dirs all have nobody:nobody permissions. This causes problems with my scripts in that rsnapshot regularly fails with "permission denied" errors when incrementally syncing the files/dirs .

Is there any workaround for this or does anybody recommend a better backup solution for regular incremental backups to an NFS share?

  • same problem without root_squash option, also have errors with permissions preserving Nov 23, 2018 at 11:19

2 Answers 2


Check out if Obnam would suit you.


Take a look at duplicity.

Duplicity backs directories by producing encrypted tar-format volumes and uploading them to a remote or local file server. Because duplicity uses librsync, the incremental archives are space efficient and only record the parts of files that have changed since the last backup. Because duplicity uses GnuPG to encrypt and/or sign these archives, they will be safe from spying and/or modification by the server.

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