I'm trying to help someone out (as a general purpose web tecchie but no Moodle experience - in the land of the blind the one eyed man...). Their original support guys went out of business.
They are on Moodle v2.0.2 and users can no longer log in (no sensible error message, just back to login page).
I've tried various diagnostics from the forum with no success and it looks like next is a reinstall.
Now the sensible thing to do (?) is to get them onto the latest version, however that has a stated requirement for MySQL v 5.1.33, currently their server is on 5.0.96.
So my preferred approach would be to upgrade MySQL first. They really don't want me to do that because they have an ecommerce package running there also using MySQL. If their ecommerce package were to have a compatibility issue with the updated MySQL the implications could be immediate loss of sales while we fix it (and the cost of the ecommerce version upgrade).
So my question is: do we know whether MySQL 5.1.33 is ESSENTIAL for the current version of Moodle or would 5.0.96 be close enough?
If "not known" then is it worth just trying? After all at present Moodle is not-working so they'd be no worse off.
(They have a similar situation with PHP required 5.3.3 currently installed 5.3.27 but as a minor patch level I'm guessing that's less likely to be an issue).
I appreciate that the best answer would be planned downtime to upgrade MySQL and ecommerce and Moodle (and PHP) but for a number of reasons it's not a good time to do that.