Hi,
I experienced the same problem where the portals 0 install failed during execution of scripts, what then happens is when refreshed other errors are produced, i.e. getportals error.
I tried everything to get this working, nothing at all worked! not folder/file permissions, not even movement of database from our remote server to the same server as the web server.
The installation was on a dedicated server, server had been hardened, which included the setting of ASP.Net trust levels to medium as advised/recommended by Microsoft - in particular this should always be the case for shared hosting server setup/config:
ASP.Net 1.1 - http://msdn.microsoft.com/library/de...l/thcmch09.asp
ASP.Net 2.0 - http://msdn.microsoft.com/library/de...AGHT000020.asp
Once the medium trust had been reset to full trust DotNetnuke installed correctly first time.
This in particular concerns me, because any host in shared environment would want to set ASP.Net to medium trust, this could be the reason for many issues/posts I have read related to installation problems.
If anyone else has experienced this it would be good to know about it!