Dear Maintainer, Lines from 66 to 68 read
if [ "x${GRUB_DEVICE_UUID}" = "x" ] || [ "x${GRUB_DISABLE_LINUX_UUID}" = "xtrue" ] \ || ! test -e "/dev/disk/by-uuid/${GRUB_DEVICE_UUID}" \ || test -e "${GRUB_DEVICE}" && uses_abstraction "${GRUB_DEVICE}" lvm; then but 'uses_abstraction "${GRUB_DEVICE}" lvm' is false for my system, so 'LINUX_ROOT_DEVICE=UUID=${GRUB_DEVICE_UUID}' is used instead. Perhaps 'test -e "${GRUB_DEVICE}" && uses_abstraction "${GRUB_DEVICE}" lvm' should be evaluated before all other conditions. Please consider the following patch: --- a/10_linux 2016-10-16 11:46:00.000000000 +0200 +++ b/10_linux 2016-10-22 18:18:43.816598444 +0200 @@ -65,7 +65,7 @@ # and mounting btrfs requires user space scanning, so force UUID in this case. if [ "x${GRUB_DEVICE_UUID}" = "x" ] || [ "x${GRUB_DISABLE_LINUX_UUID}" = "xtrue" ] \ || ! test -e "/dev/disk/by-uuid/${GRUB_DEVICE_UUID}" \ - || test -e "${GRUB_DEVICE}" && uses_abstraction "${GRUB_DEVICE}" lvm; then + || ( test -e "${GRUB_DEVICE}" && uses_abstraction "${GRUB_DEVICE}" lvm ); then LINUX_ROOT_DEVICE=${GRUB_DEVICE} else LINUX_ROOT_DEVICE=UUID=${GRUB_DEVICE_UUID} Best Regards, -- Manolo Díaz