Visvanath Ratnaweera

Ha, ha, ha! CLI is the last resort for some, first resort for the others.

Seriously, since your Moodle is dead, you are without the GUI. Means the comfort of tools like the on Dan mentioned are out. I think, Ken explained the CLI procedure. I assume, you only concern is the content, not the user data. I imagine scraping user data from mbz to be cumbersome.

Are you sure, you want only the mbz files, means you want to restore the site course-by-course? In case you want to preserver user data, like their forum posts, uploaded files, do you know that those backups contain the said user data?

Faced with this situation, I would try to get a https://docs.moodle.org/en/Site_backup from the broken server and then https://docs.moodle.org/en/Site_restore it in a healthy one. I don't know whether it is feasible in your case - depends on how broken the old site is.

Moodle is generally downward compatible, also in terms of functionality. So if the faculty is used to Moodle 3.7, they can keep on doing the same in 4.1. I mean at a minimum, one would expect them to use the added features since then.

To turn the question around, what kind of difficulties do you expect? Did you do the upgrade in a test server and ran a pilot experiment with a sub-set of the faculty?

Are these teachers enrolled as Teacher in the course?

AL

The friends in "I forwarded the question to a few friends. Let's see." are people who should know. They remain silent. I conclude that Microsoft Si and Si9 drivers are junk and propose to CLOSE the topic.