Hello,
After an upgrade, I am receiving the following error message:
Unable to write xattr b’security.NTACL’ to path progra/mnt/rdiff-backup.tmp.11095 due to exception ‘[Errno 1] Operation not permitted’, ignoring And the files are not being written.
Where can I disable the ACL option? Or is there another possible configuration?
Hello Christian,
Thanks for use the new discourse !
I’m not sure where you backup from. Is it a Windows OS ?
Also, I think this is a WARNING and not an ERROR. Could you double check. Providing more context to your issue would really help, like, the OS you backup from, the filesystem, what is the filename, etc.
To disable ACL completely, go to “Advance Settings” and write “–no-acls” to Extra Arguments. You may also try with “–no-eas”.
thanks for the quick response
It’s a bkp from linux(client) to linux(server)
I’ll try the two “extra” options/arguments
(* I put it as an error, because in the past some files appeared with zero size and recovery was not possible, I thought maybe that was the problem)
again, thanks
Hello Christian,
Thanks for the clarification. I suspect the source is a Linux server hosting a Samba share, since security.NTACL is an attribute associated with Samba. Since only a privileged “root” user can write to this xattr, you’re getting a “permission denied” error because Minarca/rdiff-backup is attempting to mirror this attribute from the source to the destination server.
Adding --no-acls and/or --no-eas should resolve the issue, as these xattrs will no longer be copied to the backup destination.
That said, it’s important to understand the impact: if you ever need to restore from this backup, these attributes and permissions will not be restored.
Alternatively, if you keep the default settings and simply accept the warning being raised, the attribute won’t be mirrored to the destination filesystem directly, but its value will still be captured in the backup metadata — meaning it could still be restored if needed.
