Introduction
For Server Backup Manager 5.2.x and later, you must upgrade the components in the following order or your backups may fail:
1) Backup Manager
2) Backup Agents
1) Backup Manager
Linux:
Please follow the steps described in the following article:
http://wiki.r1soft.com/display/ServerBackup/Upgrade+Server+Backup+Manager+for+Linux
Windows:
Please follow the steps described in the following article first:
http://wiki.r1soft.com/display/ServerBackup/Upgrade+Server+Backup+Manager+for+Windows
2) Backup Agents
Once you upgraded your Server Manager Software, you can update all your agents by following the instructions descibed in the following article: Updating theR1Soft agent (Debian, Ubuntu, CentOS, Windows)