How do I display an entire node content on the front page?
The easiest way is to create a view.

Follow these steps:


Download, extract the Views module
Enable the Views UI module and accept enable the modules that provide the dependencies
Go to the views admin page (admin/structure/views)
Enable the frontpage view (click the link)
Edit the frontpage view (click the link)
Under the format heading, there is an option "show" click the teaser link
Change the view mode option to full and untick the show links checkbox
Click the Apply (all displays) button
Click the save button
Visit the site information page (admin/config/system/site-information)
Change the default front page URL to "frontpage" (without the quotes)
Click Save configuration


It show now just work.