Failure to upgrade database through shell
I've been using TikiWiki 1.9 for quite a long time, but since my web host is soon ditching PHP4 support I need to upgrade, and have been trying to get TikiWiki 5.0 going. I downloaded TikiWiki 5, uploaded and uncompressed the files, but I'm having a hell of a time getting tiki-install.php going due to permissions problems. I thought I could work around this by doing part of the process through shell, but when I try upgrading the database I get the message Tiki is not installed yet. Well, yes, that's what I'm trying to do.
I take it there's some earlier part of the installation it's trying to get information from which just isn't there. What do I need?