I have recently been having lots of problems with upgrading my wordpress install... ever since 2.8.1 or so, i have been unable to run the automatic install, and deleting all my files while trying to remember which ones i've edited and also while leaving all the uploads in place etc... is really not easy for me, whereas the automatic upgrade (when it worked) was absolutely perfect!
So... when i run the upgrade, all i get is "Upgrade failed". There are no other errors.
Does anyone know what i can do to troubleshoot this further? I've tried renaming the wp-content/upgrade folder to something else and that made no difference.
Other automatic upgrades (on themes & plugins) work perfectly.
Thanks in advance people! I hope you can help!