by Andrzej Tokarski.
Hi, Happy to inform you, that I solved the problem of restoring my courses from backup.mbz.
The problem was in the size of the file to be restored.
(the same problem exisetd in Windows XP)
My course backups were small, because experimental only.
The size was no more than 30 MB. But my moodle, hosted in windows under localhost,
allowed only 8 MB of upload, that was the max file size which
I was able to set within moodle.
To solve the problem I had to change the settings in php.ini.
post_max_size was8MB , I changed to 100
and
upload_max_filesize was 32MB , I changed to 100
Still, of course, I am able to limit for my students the size of uploaded files within moodle .
I can successfully restore all my courses now.
Thank you very much for clues and your time.
Share this info with moodle community.
All the best. Andrew