After got through all of the steps I got the following lines:
3218891ms th_a database.cpp:3315 apply_hardfork ] HARDFORK 3
177178ms th_a database.cpp:3321 apply_hardfork ] HARDFORK 4

What should I do after this?
How can I start mining? Or this process will start automatically ?
Where can I see how mining is going on?