Q wrote:
You input invalid usernames and/or passwords for
(likely) the superuser
or wiki db account name. This error message is slightly ambiguous and
was fixed in newer version of MW.
Thanks Q! I had forgotten to set up the database and I didn't supply the
su with a password. So much for reading the "quick start" docs -- they
don't mention the database at all, and it took me a moment to see the
obvious. Duh!