Troubleshooting Backup & Restore

Errors have been made, possibly they can be corrected through.

Exit codes

Backup & Restore script come with exit codes to help you within possible autonomous handling. However, we do not guarantee a complete error handling.

Beside the exit codes, there’s also error messages returned to standard out.

Exit code list


Description / Situation


The script finished successfully (or the error is not handled).


This is a general error. Most often used for script aborts due to incorrect information provided or information missing.


There was an error with database handling. This usually either happens if your database server does not meet script requirements, login data being invalid or „broken‟ database dumps.


There were issues with file / folder permissions.


Here’s some classics you may encounter.


🥸 Your issue is not listed…?

Please consult the Zammad Community for technical assistance.

password authentication failed -or- peer authentication failed

This indicates that the password of your Zammad DB user is either different from your database.yml or the wrong database server may be contacted.

„But my Zammad instance is running, how can it be wrong?‟

Zammad may fall back to socket connection which is why you didn’t notice.

What to do …
  • Ensure that the provided user credentials are correct


    🤓 Lazy users can use our helper

    In the backup directory you’ll find a Database Helper: (re)set password.

Ident authentication failed for user

This indicates your database server does require ident authentication. That authentication method is not supported by our scripts.

What to do …

Check pg_hba.conf of your PostgreSQL-Server and adjust it if needed.

Usually authentication can be allowed like so:

host    all             all               md5
host    all             all             ::1/128                 md5

Please consult the offical PostgreSQL documentation for this, as this is out of our documentation scope.

WARNING: You don't seem to have any attachments in the file system!

This indicate you’ve set FULL_FS_DUMP to no but your instance currently does not save attachments to file system.

This warning will be shown once before creating an empty directory to allow the backup process to continue successfully.

If you believe that this is an error, please see Storage Settings. In case the issue posts, please consult the Zammad Community.