This is a significant change to how course backup content was handled in moodle 1.x. The backup files are first of all saved with a .mbz extension, as apposed to a .zip in moodle 1.x. Second, the files are no longer simply stored in course directories as files. They are now stored as unreadable files, unreadable from the OS standpoint. This document describes the process change.
This is an interesting thread, that seems to have been fixed. This forum post was helpful. This post on repositories goes beyond the course backup conversation, but is very well detailed and attended.
My goal for now is to automate the process. I will backup each course to a specified directory, not the default directory, since you cannot browse it. I created a folder off my root, outside of the web root www, and have it backing up each night, keeping two copies only. The problem in the thread above was that older copies were being left on the disk. This quickly eats up drive space and can crash the entire server.
I will check this carefully ensuring that I am only keeping two copies of the courses.
I will also check that I can restore a course without any difficulty.
The whole purpose of this is so I could restore a individual course if needed.
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