Can you please do show me how to install joomla on /var/www/ (root) folder I don't want /var/www/joomla and I think I am stuck with how to create permission and too afraid to make writable to public. Can you do step by step please....
http://www.allaboutlinux.eu/joomla-2-5-3-on-ubuntu/4/
How to install Joomla 2.5.3 on Ubuntu
Ubuntu doesn't allow until you are logged in as super user. To install joomla in it login as super user and try to install.
Well, download your joomla version from here : http://www.joomla.org/download.html
then go to the terminal and do sudo unzip pathtojoomla.zip -d /var/www
this will create a folder in the /var/www
try extract files and directories from this folder and put them directly into /var/www
(use sudo nautilus /var/www
to access the /var/www using the nautilus browser)
for the permissions use 755 for directories and 644 for the files use chmod
to set permissions.