upgrade from 1.0.4 not successful - could not write config file

Hello out there,

I just recently tried to upgrade a client's installation of 1.0.4 to 1.0.5 and I ran into the following problems:
1) even though the manager/includes/config.inc.php was writable, and according to the pretest that the installation process does it was writable, the confirmation page after the installation said that it could not write to the config file, and printed out the code that I should manually paste over the current one.

2) so after I did this, I went to the manager to log in and it displays the message at the login form that the website is going through an upgrade and that I should try again some other time. So I can't log into the manager. And as a result of this, the frontend is just showing a mysql error.

The hosting account offers the following:
mysql 5.0.91
php 5.2.17

would be great if someone had a clue as to what I can do next. I ended up reinstalling the backup and the website is running on 1.0.4.

PS: Great new forum! Glad that the CI now is consistent!

Are you sure that the config.inc.php file is world-writable? It may require 777 permissions. What is the server platform, Windows, Linux... ?

I tried it with 777 permisions - I am 100% certain. Plus the testing screen during the install confirmed that the file is writable. It is a shared hosting solution by strato.de - I unfortunately don't know what kind of platform, I would suspect Linux.

made a copy of the site, put it into a new folder, tried the update there with the same result. I guess the next step is to try it on a different server to see if it is server related?

You may try to download the website on yout computer and to upgrade it there, just to see if in this way it works.

I copied the website files, and db and installed it on another linux hosting package running mysql 5.1.5.2, tested the website, then uploaded 1.0.5, installed and it went off without a hitch. So it has to be something with the server that is creating a problem....