sudo grub-install /dev/sda1 --root-directory=/mnt
$result_array = [];
foreach ($input_array as $array) {
$column = $array['column'];
$result_array[$column] = array_merge(
$array,
isset($result_array[$column]) ? $result_array[$column] : []
);
}
$result_array = array_values($result_array);