Insert records from one table to other with default serial

I have two tables with same structure, first column gid as serial, and many other columns after that. I want to insert selected rows from one table to the other. Without serial it is really easy: insert into all_roads select * from new_roads where add_road = 1; But with serial as first column in both I do get error: ERROR: duplicate key value violates unique constraint I really do not want to copy serial number from one table to the other. I rather use default serial value for all new inserted records. Is there a way without writing insert which manually lists all the columns except the first - serial?