I've tried a couple of installs of the 3.9sp1 overlay and I get the same problems each time:
*edirectory schema extension fails
*'firewall' schema extension fails
*default filters not installed
*settings not migrated (?)

This is a new server, but there is an existing BM3.8 in the same container.

There are probably manual fixes for all, but I'd like a 'clean' install otherwise I fear server will be as stable as a house of cards.

All prerequisites were met at start of install.
TIA. Si.