system("resize2fs $root_block_device");
$initial_root_fs_uuid = find_fs_uuid_of_device($root_block_device);
$efi_block_device = find_efi_parition($initial_root_fs_uuid);
system("resize2fs $root_block_device");
$initial_root_fs_uuid = find_fs_uuid_of_device($root_block_device);
$efi_block_device = find_efi_parition($initial_root_fs_uuid);