Attempting to get SilverStripe to run on PowWeb...Install goes fine with the exception of this Warning that pops up briefly before stating it installed successfully.

<quote>
Installing SilverStripe...

I am now running through the installation steps (this should take about 30 seconds)

If you receive a fatal error, refresh this page to continue the installation

Creating 'mysite/_config.php'...
Creating /hermes/web08/b934/pow.mcbrided/htdocs/usertisement.com/mysite/_config.php
Creating '.htaccess' file...
Creating /hermes/web08/b934/pow.mcbrided/htdocs/usertisement.com/.htaccess
Building database schema...
Checking that friendly URLs work...
Friendly URLs set up successfully; I am now redirecting you to your SilverStripe site...

[Warning] Unknown: open(/var/php_sessions/sess_e79d284849105a7cbb64c17cef0cf6db, O_RDWR) failed: No such file or directory (2)
POST /install.php

Line 0 in Unknown

Source

Trace
</quote>

After the install, attempting to logon to the CMS causes me to be redirected back to the logon page immediately. I am unable to get in.

I host multiple domains through this account with PowWeb. I point my domains to a subfolder of the root dir (for example: /htdocs/domain.com/ - where htdocs is my root dir). Is this a problem?

Enabling dev mode outputs:

[Warning] session_start() [function.session-start]: open(/var/php_sessions/sess_cf01a815f4cabefe2362f3eaee0f0816, O_RDWR) failed: No such file or directory (2)
GET /

Line 197 in /hermes/web08/b934/pow.mcbrided/htdocs/sapphire/core/Session.php

Source

188       Session::set("FormInfo.$formname.message", $message);
189       Session::set("FormInfo.$formname.type", $type);
190    }
191
192    public static function start() {
193       self::load_config();
194       
195       if(!session_id() && !headers_sent()) {
196          session_set_cookie_params(self::$timeout, Director::baseURL());
197          session_start();
198       }
199    }
200    
201    /**
202     * Use the Session::$session_ips array to set timeouts based on IP address or IP address
203     * range.
Trace

session_start()
Line 197 of Session.php
Session::start()
Line 69 of main.php

Please look up in your php.ini file for this string:

and check if there is a folder where it points.