overlay 文件系统mount 失败

ferryworld

overlay 文件系统mount 失败，内核版本已经是4.19.193。有没有遇到过类似问题的大神？

1. root@linaro-alip:~# uname -a
   
2. Linux linaro-alip 4.19.193 #2 SMP Thu Feb 10 14:36:41 CST 2022 aarch64 GNU/Linux
   
3. root@linaro-alip:~# mount -t overlay overlay -o lowerdir=/config/worka,upperdir=/config/etc/upper,workdir=/config/etc/work /config/worka
   
4. mount: /config/worka: unknown filesystem type 'overlay'.
   
5. root@linaro-alip:~#
   

复制代码

jh5254622

确认下kernel的配置中是否有选上overlay