Now that you mention this...after putting in the files and getting the 404, going to http://mysite without the install part of the URL -- the site would indeed open and function properly.

I could log in as host and and upon doing this I tried to see the 4.9.1 install log file from the host settings and I got a message that there was no log file, which suggests the upgrade script etc. never ran.

That the site would open, and that the /install/install.aspx does exist, means you're right, there is something strange, maybe I have to wait for 4.9.2 to get a working upgrade??

Thank you, Tom

I'll try the SQL module thing...but the error I got was that NO 4.9.1 log exists, whicih is not the same thing as an empty log, which is an upgrade success indicator.

I'll post again about what happens for me.

Host settings page did say 4.9.1, but no log file...I'll take a snapshot and try all this again...I need this site to go live next month so it would be good to get the security update in there.

Thank you, Tom

Would you please point me to something which explains how to do this -- what to type, etc.??

I know how to type in the statement in the host::sql section, but not what to type specifically.

I found the file and changed the owner and object qualifier, now I'll try it in the host::sql, but I got only an unhelpful 'There is an error in your query!"

Running it as a script causes numerous errors, which I "fixed" by removing the section that tries to add a 'Name' column to the version table, then the script ran without error, but still no log file and it's not obvious whether or not I have a 4.9.0 or 4.9.1 website.

I think I have to give up and revert waaay back to where I was before I started all this stuff and give up on DotNetNuke ever being a good app to work with, I would never recommend it to anyone because on the numerous negative experiences I have had with the software, which in no way reflects upon the people who have actually been helpful to me in the forums. I just would not ever recommend this software.

Every upgrade attempt gives me the following in Firefox 2.x:

404 Url Not Found
The requested Url (http://localhost/Install/install.aspx?mode=upgrade) does not return any valid content.

Thank you, Tom