Thread:Project:Support desk/Various install warnings, what effects will they have?

Below are the warnings I get when I start the installation script. However, I get the "Environment checked. You can install MediaWiki." message at the end. I know about safe mode to the extent that I can probably turn it off if needed. Can someone advise me on what issues these things might cause if not corrected, and how I might correct these things? Thank you.


 * 1) Have XML / Latin1-UTF-8 conversion support.

Warning: is_dir [function.is-dir]: open_basedir restriction in effect. File(/var/lib/php/session) is not within the allowed path(s): (/var/www/vhosts/mergeemerge.org/httpdocs:/tmp) in /var/www/vhosts/mergeemerge.org/httpdocs/mewiki/config/Installer.php on line 474


 * 1) Warning: Your session.save_path value (/var/lib/php/session) appears to be invalid or is not writable. PHP needs to be able to save data to this location for correct session operation.