diskimage-builder/elements/base/finalise.d/52-force-text-mode-console

#!/bin/sh

set -e

# If lsb_release is missing, just do nothing.
DISTRO=`lsb_release -si` || true

GRUBFILE=""

case $DISTRO in
  'Ubuntu'|'Debian')
    sed -i -e 's/\(^GRUB_CMDLINE_LINUX.*\)"$/\1 nomodeset vga=normal"/' /etc/default/grub
    ;;
  'Fedora')
    # By default the F19 cloud image is using extlinux to boot the image
    [[ ! -d /boot/grub2 ]] && exit 0

    echo 'GRUB_CMDLINE_LINUX="nomodeset vga=normal"' >/etc/default/grub
    if [ -f /boot/grub2/grub.cfg ]; then
      sed -i -e 's/terminal_output gfxterm/terminal_output console/' /boot/grub2/grub.cfg
    fi
    ;;
esac

echo 'GRUB_TERMINAL=console' >>/etc/default/grub