ubuntu dual boot problem

[suraj12345]

my lappy is vaio f series f15319.i installed ubuntu with dual boot.it installed successfully.the next time i start my lappy it always opens windows 8.it doesnt give me any option to select from ubuntu or windows 8.please help..

 

[drkatz42]

this may assist you
http://www.everydaylinuxuser.com/2014/05/install-ubuntu-1404-alongside-windows.html