@ -171,6 +171,9 @@ umount_disk_image() {
local uefi_dev="/dev/mapper${loop_device///dev/}p15"
if [ -e "$mountpoint/boot/efi" -a -b "$uefi_dev" ]; then
# zero fill free space in UEFI partition
cat < /dev/zero > "$mountpoint/boot/efi/bloat_file" 2> /dev/null || true
rm "$mountpoint/boot/efi/bloat_file"
umount --detach-loop "$mountpoint/boot/efi"
fi