GRUB_VIDEO_BACKEND='vbe'
GRUB_GFXMODE='1024x768x32;1024x768x16;800x600x16;640x480x16;640x480x15;640x480x32'
GRUB_TIMEOUT='30'
GRUB_TERMINAL_OUTPUT='console'
GRUB_DEFAULT='1'
GRUB_GFXPAYLOAD_MODE='1024x768x32;1024x768x16;800x600x16;640x480x16;640x480x15;640x480x32'