Error : Not Found in Drupal 8 and Ubuntu Saucy salamander 13.10

Since last few months i am using windows as my developent environment. So i do all the drupal 8 testing and exploration in windows.es

Yesterday i was trying Ubuntu 13.10 and Drupal 8 development. I installed drupal 8 as per the regular scenario.

I followed the steps given below.

  1. checkout latest drupal 8 from drupal git repository
  2. created  database
  3. http://localhost/drupal8 
  4. entered db info for database
  5. database installed just fine and installation completed
  6. "Congradulations, you installed Drupal!"
  7. clicked on "Visit your new site"
  8. "Welcome to Drupal" ... "No front page..."
  9. click on "Add new content"

Virtual host configuration in Ubuntu 13.04

Now a days I am learning symfony framework.
While installation I came across the need to configure the virtual host on my ubuntu.
 
Here is what I found on the Ubuntu online documentation.
 
In Apache2 ships with a virtual-host-friendly default configuration. That is, it is configured with a single default virtual host (using the VirtualHost directive) which can modified or used as-is if you have a single site, or used as a template for additional virtual hosts if you have multiple sites.