https://docs.docker.com/engine/release-notes/23.0/

docker-ce 23.0.1已经解决这个问题。

omv5提示更新docker-ce等，更新后，无法访问portainer，ssh进去

docker ps

发现多数容器未启动，

docker start portainer

提示

root@openmediavault:~# docker start portainer
Error response from daemon: AppArmor enabled on system but the docker-default profile could not be loaded: running `apparmor_parser apparmor_parser --version` failed with output: 
error: exec: "apparmor_parser": executable file not found in $PATH
Error: failed to start containers: portainer

重启，重新安装portaine，重新安装docker，均无效。网上搜索一圈，运行

apt install apparmor -y

解决，原因未知！