I installed docker pre-installed on Ubuntu 24 system.I want to use docker to load nas-tools and Jellyfin to build a nas.BUT,When I want to map a folder, I find that the folder mapping in the root directory will fail, but the folder mapping in the home directory will succeed.for example:

services:
  nas-tools:
    image: hsuyelin/nas-tools:latest
    ports:
      - 3000:3000 
    volumes:
      - /home/admin//docker-compose/nas-tools:/config 
      - /home/admin/video:/video
    environment: 
      - user=root
      - UMASK=000 

will work good.but:

services:
  nas-tools:
    image: hsuyelin/nas-tools:latest
    ports:
      - 3000:3000 
    volumes:
      - /home/admin/docker-compose/nas-tools:/config 
      - /data1/video:/video
    environment: 
      - user=root
      - UMASK=000 

will failed， /data1 is a folder mounted on another diskI can’t read or write any file in /data1/video by docker volumes.
This is really bothering me. Can someone help me?

I try chmod -R 777 /data1 and change the source dir to /tmp/video but it don’t work.