* util/update-grub.in: Export GRUB_CMDLINE_LINUX. * util/grub.d/00_header.in: Only enable gfxterm when convert_system_path_to_grub_path() succeeds.
* util/update-grub.in: Export GRUB_CMDLINE_LINUX. * util/grub.d/00_header.in: Only enable gfxterm when convert_system_path_to_grub_path() succeeds.