vga options in kernel parameter, for Linux change its console screen resolution

just add one of this options to make our linux screen console to have bigger than old time standard 80x25 mode.

ie : kernel  /vmlinuz-xxxx ro root=/dev/xxx rhgb quiet vga=VVV

where VVV is one of this number 791 is sufficient enough for me.
791 - 1024x768, 16 bit
792 - 1024x768, 24 bit
794 - 1280x1024, 16 bit
795 - 1280x1024, 24 bit

reboot the machine for setting to be applied.