[BAREOS] - Can a backup server bareos 16.2.4 backup a bareos 18.2.5 client?

[Richard DURAND]

Hello

Currently I use a backup server with Bareos 16.2.4 and the target servers under CentOS 6 uses Bareos 16.2.4.

We migrate our servers from CentOS 6 to CentOS 8.

Currently there is no Bareos package for the CentOS 8 release.

However on a CentOS 8 target server I installed the bareos-common-18.2.5-144.1.el7.x86_64.rpm and bareos-filedaemon-18.2.5-144.1.el7.x86_64.rpm packages.

The pb is that when I run the following command on the backup server

echo "status client=client-fd" | bconsole

I get the following error message:

11-Dec 13:03 bareos-dir JobId 0: Fatal error: Authorization key rejected by File Daemon client-fd.

Please see http://doc.bareos.org/master/html/bareos-manual-main-reference.html#AuthorizationErrors for help.

11-Dec 13:03 bareos-dir JobId 0: Fatal error: Unable to authenticate with File daemon at "client:9102". Possible causes:

Passwords or names not the same or

TLS negotiation failed or

Maximum Concurrent Jobs exceeded on the FD or FD networking messed up (restart daemon).

Please see http://doc.bareos.org/master/html/bareos-manual-main-reference.html#AuthorizationErrors for help.

Thinking that the pb came from the bareos-common-18.2.5-144.1.el7.x86_64.rpm and bareos-filedaemon-18.2.5-144.1.el7.x86_64.rpm packages, on a CentOS6 target server I installed the following packages :

bareos-filedaemon-18.2.5-144.1.el6.x86_64.rpm and bareos-common-18.2.5-144.1.el6.x86_64.rpm

I have the same error message again.

For information if I install on the same CentOS 6 target server the following packages bareos-filedaemon-16.2.4-12.1.el6.x86_64.rpm and bareos-common-16.2.4-12.1.el6.x86_64.rpm everything works.

This means that the pb does not come from the file /etc/bareos/bareos-fd.d/director/bareos-dir.conf of the target server because the password is the same on the backup server.

My questions

- Is there any incompatibility between a bareos backup server 16.2.4 with a client bareos version 18.2.5?

- Is it possible to backup a client bareos version 18.2.5 with a bareos 16.2.4 backup server?

Thank you in advance for your help

Regards

Knoax

[Andreas Rogge]

Am 11.12.19 um 13:55 schrieb Richard DURAND:

> - Is there any incompatibility between a bareos backup server 16.2.4
> with a client bareos version 18.2.5?
> - Is it possible to backup a client bareos version 18.2.5 with a bareos
> 16.2.4 backup server?

That's documented in the Release Notes for 18.2.

https://docs.bareos.org/Appendix/ReleaseNotes.html#backward-compatibility

Best Regards,
Andreas
--
Andreas Rogge andrea...@bareos.com
Bareos GmbH & Co. KG Phone: +49 221-630693-86
http://www.bareos.com

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[Richard DURAND]

Hello

Thank you very much for your responsiveness to answering me.

The release note for 18.2 only indicates that there is a backward compatibility ie a bareos server 18.2 can backup  client bareos version 16.2 for example.

I conclude that a bareos server 16.2 can not backup  a client bareos 18.2.

OK, I will update my backup server bareos in version 18.2

Thank you again for your answer

Regards

Knoax