for abstraction in dummy `"${grub_probe}" --device ${GRUB_DEVICE} --target=abstraction`; do
for abstraction in dummy `"${grub_probe}" --device ${GRUB_DEVICE_BOOT} --target=abstraction`; do
--
fs="`"${grub_probe}" --device ${GRUB_DEVICE} --target=fs`"
fs="`"${grub_probe}" --device ${GRUB_DEVICE_BOOT} --target=fs`"