Trouble with switch2osm tutorial for ubuntu 12.04

I’m following, but when I get to the part where I start the tileserver, an error occurs.

I executed the command

renderd -f -c /usr/local/etc/renderd.conf

on the terminal, but the following message appears:

I decided to start the server anyway

sudo /etc/init.d/apache2 restart

Everything goes fine, no FATAL errors.

I go to http://localhost/osm_tiles2/0/0/0.png to see if it worked and what happens is:


I Followed this and i configured the local server successfully with a India region pbf file, now i wanted to updated with Boston Area tiles, i downloaded the pbf file of the Boston Area, but i am stuck in updating my local tile server to with this downloaded Boston area pbf file, kindly help me how to achieving same.