Gentle Reader, I need to deliver multiple Koha training sessions for several groups of volunteers who work on our front desk. I'll be setting a specific series of tasks and it will be much easier if I can "reset" the database to a previous checkpoint before each session so we can re-run the same tasks. So ... I've tried the sequence koha-dump / koha-remove / koha-restore; I got a list of "File exists" errors when I did the koha-restore (mostly in /var/lib/koha/stand, where "stand" is my instance name). These didn't trouble me too much but I then had to fix a missing /etc/apache2/sites-enabled/stand.conf and a missing /var/log/koha/stand directory before apache would start up. Now, when I try to log in I get a perl error about an unblessed reference in /usr/share/koha/lib/Koha/Database.pm (line 56). This is getting too deep into the code for me to have much hope of debugging it, so before I spend more time on this (or give up entirely) does anyone have any advice on the right command sequence (with the right options) that I can use to achieve this in a clean, pain-free way? Thanks and Best Regards, Chris Brown