Hello, I am trying to upgrade bamboo server from 6.3.1 to 9.6 data centre version. As per the Atlassian upgrade documentation, the path to follow is 6.3.1 to 6.5 to 8.0.12 to 9.6.
6.3.1 to 6.5 went well but when i tried to upgrade from 6.5 to 8.0.12 , i am getting the following error in the atlasian-bamboo.log
Caused by: java.io.FileNotFoundException:
\Atlassian\Application Data\bamboo-home\xml-data\configuration\administration.xml (The system cannot find the file specified)
I checked the configuration folder and this file is missing. What could be the reason ? Did it get corrupted during the upgrade?