Although /var/opt/alfresco is the root directory which u completely rebuild with new version, I get the following error.16:57:11,719 INFO [repo.admin.ConfigurationChecker] The Alfresco root data directory ('dir.root') is: /var/opt/alfresco
16:57:12,546 ERROR [repo.admin.ConfigurationChecker] CONTENT INTEGRITY ERROR: System content not found in content store.
16:57:12,547 ERROR [repo.admin.ConfigurationChecker] Ensure that the 'dir.root' property is pointing to the correct data location.To workaround I set system.bootstrap.config_check.strict=falseBut there but be a better fix.