[LE10] Change Docker root Directory

Aciel · October 10, 2021 at 8:17 AM

Hello,

I want to change docker default root directory which is set in '/storage/.kodi/userdata/addon_data/service.system.docker/config/docker.cfg'.

From:

/storage/.kodi/userdata/addon_data/service.system.docker/docker

To:

/media/Docker/root

But after doing so, there is something going wrong. When I install the Docker version of Portainer-ce, its docker-compose throws 'Invalid Plugin', 'Permissions denied' errors.

This doesn't happen with the default root location. Do I need to change something else as well or am I missing something?

Regards~

**chewitt** · October 11, 2021 at 12:48 AM

Most of the LE filesystem is read-only which would explain the permissions error. You need to use a writeable area like /storage or if using a removable drive, somewhere under /var/media/<drive> where the drive is auto-mounted. I'm not anywhere near an LE device to check but I'm not sure /media is a valid location in the OS.

Aciel · October 11, 2021 at 7:47 AM

/var/media is symlinked to /media

Yes, my /media/Docker is an removable external drive connected by USB. I wish the RK3399 had the install to eMMC on the official LE10 builds. Because putting Docker root on the sdcard is like decreasing its life.

Edit 1:

How can tell docker.service to start after usb storages are mounted? It should be After=xxx.mount

**chewitt** · October 11, 2021 at 6:42 PM

You can edit the docker .service file (somewhere in the add-on dirs) to add the after dependency; don't forget daemon-reload afterwards to update systemd.

I'm also fairly sure you can just dd the LE image to eMMC, I don't think RK doesn't anything too fancy with boot unlike other SoC types.

[LE10] Change Docker root Directory

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