Hey there, let's tackle this Docker Compose issue you're hitting when starting the be service. The error you shared points to a failure during container initialization specifically related to mounting a filesystem—super common, but we can work through it step by step.

First, let's recap the error you encountered:

Cannot start service be: OCI runtime create failed: container_linux.go:349: starting container process caused "process_linux.go:449: container init caused "rootfs_linux.go:58: mounting [details from your terminal screenshot]"

Here are actionable steps to diagnose and fix the problem:

• Double-check your volume mount paths in docker-compose.yml
  The most frequent cause of this error is a missing or misspelled host directory. Look at the volumes section for the be service—if you're using a relative path like ./my-app:/container/path, run ls ./my-app on your host machine to confirm the directory exists. Docker won't automatically create host directories for bind mounts in all scenarios, so ensuring the path exists is key.

• Inspect directory permissions on your host
  If the host directory exists but has restrictive permissions (e.g., owned by a non-root user with no read access for others), the Docker daemon (which runs as root by default) might fail to mount it. Test this temporarily by running chmod -R 755 /path/to/your/host/directory (just make sure to adjust permissions back to secure settings once you confirm this is the issue).

• Get the full error details
  The error snippet you provided cuts off the exact mount path that's failing. Run docker-compose logs be to pull the complete error log—it will explicitly tell you which path Docker is trying to mount, making it way easier to pinpoint the problem.

• Test with a minimal compose configuration
  Create a stripped-down docker-compose.yml that only includes the be service and the problematic volume mount. Start it with docker-compose up—if the error still happens, you know the issue is isolated to that service/mount, not other parts of your original config.

• Restart the Docker daemon
  Occasional glitches in the Docker daemon can cause mount issues. On Linux, run sudo systemctl restart docker; on Windows or macOS, restart Docker Desktop via the app menu. Then try running docker-compose up again to see if the problem clears up.

• Check for custom volume driver issues
  If you're using a non-default volume driver (not the standard local driver), make sure it's installed correctly and compatible with your Docker version. Third-party drivers can sometimes have compatibility bugs that lead to mount failures.

内容的提问来源于stack exchange，提问作者Shekhar