GRUB_GFXPAYLOAD_LINUX=1440x900 GRUB_DISABLE_RECOVERY=true GRUB_TIMEOUT=15 GRUB_DISTRIBUTOR="ROSA" GRUB_DISABLE_LINUX_UUID=false GRUB_DISABLE_OS_PROBER=false GRUB_OS_PROBER_LINKED=false GRUB_GFXMODE=1440x900 GRUB_DEFAULT=saved GRUB_SAVEDEFAULT=true GRUB_CMDLINE_LINUX_DEFAULT='splash=silent logo.nologo quiet nomodeset' GRUB_THEME="/boot/grub2/themes/rosa/theme.txt" GRUB_BACKGROUND="/boot/grub2/themes/rosa/terminal_background.png"