In a site, NBU backup software need be installed and deployed. Host server OS is Windows2003. Install NBU6.5 successful after installing NBU6.5.5 upgrade package. But after logging on MBU management interface, we found that the NBU version is still 6.5.
1.Currect server time
2.Uninstall NBU6.5.5 upgrade package and reinstall upgrade package. Escalation succeed.
It will compare system time with file time in NBU escalation process. If server time has serious error, the file changing will be aborted, which leads escalation error.