Infrastructure NBU :
Master Server Windows 2012R2 v8.0
Robot scalar 80
After done all pre-requisite for upgrade to v126.96.36.199, backup NBDB, reorganise it and shutdown all services, i'v launche the upgrade, FAILED because of a the Tomcat Certificate expired.
The Rollback failed to because of a the ACL on the C:\
i've restore the catalog, but at the end, the system could not restart the database !
I've restore catalog without handling the database: OK but since it's worth.
Since i ve seen a lot of error from the database:
you have told that both upgrade and rollback failed. So you have an undefined version now - you should uninstall the current sw, install pre-upgrade (8.0) version, and restore catalog backup which was done with this version.
BMRDB is not core NBU database, its optional. I think its not the cause of problems. Maybe you even dont have BMRDB configured.