hi,
i decided to upgrade my site from 6.2 to 6.8.
partly because it said it was a security upgrade, and partly because my cck date view filter wasn't working, so thought i'd make sure everything was current before fixing it.
took a backup of site plus database.
installed the backup on my localhost. practised running the upgrade on my local copy. appeared to work. so got ready to do it in production.
took site offline.
turned off modules.
uploaded code.
ran update.php
blank screen.
ran update.php
blank screen, with address http://www.mysite.com.au/update.php?op=info
just in case it really had worked, tried www.mysite.com.au.
got fatal error with Call to undefined function db_set_active() in bootstrap
in case code hadn't ftp'd in correctly, reuploaded stuff.
tried the update.php again.
still got blank screen with same url.
using the home url this time gets Call to undefined function db_query() in /mysite.com.au/includes/session.inc on line 32
hm. site screwed.
uploaded code from the upgraded localhost backup.
tried uploading backup database.
packet size too big on the cache table.
couldn't use heidi to export the sql from my test database - kept hanging.
ended up using xampp/phpmyadmin to export the sql from the test database. edited the file to remove the cache table contents.