Making sure you have unzipped the Joomla! packages and database files to  the USB flash drive on the paths as follwoing

/www/content
/www/mysql

 Then, use your web browser to open http://192.168.1.1/, you should see the Joomla installation page as followings.

 Fill your information around by the red square box, those here are examples.

 

 Fill the value exactly same as those in the red square red box. Password for database is qwerasdf