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If Veeam Backup Enterprise Manager is installed on the same server as Veeam Backup and Replication, and Veeam Backup and Replication is upgraded to version 6.1 without upgrading Veeam Backup Enterprise Manager, you will get an error about the Veeam Backup Catalog Data service. Upon rebooting, the server will go into an infinite reboot loop.

The solution is well described in the KB 1645:

  1. Uninstall Veeam Backup Enterprise Manager and Veeam Backup Catalog service.
  2. Run Veeam_B&R_Setup_x64 to upgrade Veeam Backup and Replication to version 6.1.
  3. Allow machine to restart.
  4. Run Veeam_B&R_EnterpriseManager_Setup_x64 to upgrade Veeam Backup Enterprise Manager to version 6.1.

If you are experiencing reboots:

  1. During the boot process, click F8 and boot from “Last Known Good Configuration”.
  2. Uninstall both Backup and Replication and Enterprise manager and proceed to install 6.1 components instead.

Virtualization, Cloud and Storage Architect. Tech Field delegate. VMUG IT Co-Founder and board member. VMware VMTN Moderator and vExpert 2010-24. Dell TechCenter Rockstar 2014-15. Microsoft MVP 2014-16. Veeam Vanguard 2015-23. Nutanix NTC 2014-20. Several certifications including: VCDX-DCV, VCP-DCV/DT/Cloud, VCAP-DCA/DCD/CIA/CID/DTA/DTD, MCSA, MCSE, MCITP, CCA, NPP.