Ibm cloud quotacheck：您的内核可能支持日志配额，但您没有使用它

我在ibmcloud上有一个带有CentOS7的虚拟服务器，我需要在上面启用配额。当我运行命令时

quotacheck -uv /

它给我以下输出：

quotacheck: Your kernel probably supports journaled quota but you are not using it. Consider switching to journaled quota to avoid running quotacheck after an unclean shutdown.
quotacheck: Quota for users is enabled on mountpoint / so quotacheck might damage the file.
Please turn quotas off or use -f to force checking.

我还切换到了救援模式，目的是将silesystem切换到ext4，但命令

tune2fs -O extents,uninit_bg,dir_index /dev/xvda2

给我输出：

tune2fs 1.39 (29-May-2006)
Invalid filesystem option set: extents,uninit_bg,dir_index

有没有关于如何修复的建议