# Error running Docker containers on SD card
**URL:** https://www.wago.community/t/error-running-docker-containers-on-sd-card/283
**Category:** Hardware and Linux
**Tags:** edge-controller, docker
**Created:** [October 13, 2022, 2:31pm UTC](https://www.wago.community/t/error-running-docker-containers-on-sd-card/283 "2022-10-13T14:31:09Z")
**Posts on this page:** 5
**Page:** 1
### Author:  [@quenorha](https://www.wago.community/u/quenorha)
#### Post date: [October 13, 2022, 2:31pm UTC](https://www.wago.community/t/error-running-docker-containers-on-sd-card/283/1 "2022-10-13T14:31:09Z")
Hi community,
I noticed a quiet new behavior that I noticed only on Edge controller and TP600.
When I install Docker, and move it to SD card and try to deploy a container for the first time I get the following error :
```auto
docker: Error response from daemon: failed to create shim: OCI runtime create failed: /media/sd/docker/overlay2/97c47323d9dbcdf7618a4757b9eae7f223d95d5f3d7eb2fd0f76ef14676f381f/merged is not an absolute path or is a symlink: unknown.
```
It seems to have a link with the symbolic link …
The restart of the docker daemon seems to solve the issue but I’d like to find the reason behind and a better way to solve it.
Thanks for your feedback.
---
### Author:  [@hoprodgarage](https://www.wago.community/u/hoprodgarage)
#### Post date: [October 13, 2022, 5:45pm UTC](https://www.wago.community/t/error-running-docker-containers-on-sd-card/283/2 "2022-10-13T17:45:29Z")
Did you move it by specifying the new data-root in the /etc/docker/daemon.json ?
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### Author:  [@quenorha](https://www.wago.community/u/quenorha)
#### Post date: [October 14, 2022, 5:48am UTC](https://www.wago.community/t/error-running-docker-containers-on-sd-card/283/3 "2022-10-14T05:48:03Z")
Yes, exactly ! And then I restart the daemon. The sd card is previously formated in ext4.
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### Author:  [@hoprodgarage](https://www.wago.community/u/hoprodgarage)
#### Post date: [October 14, 2022, 6:12am UTC](https://www.wago.community/t/error-running-docker-containers-on-sd-card/283/4 "2022-10-14T06:12:09Z")
Thats strange. I have seen that error if symlinks is used instead of updating the daemon.json.
This is the way I move the location of docker.
1. Stop the daemon
2. Add/create the daemon.json and add the new data-root location
3. rsync the old location to the new one
4. rename the old location (and deletes this when everything is confirmed OK)
5. Start the daemon
I haven’t tested this on a edge controller/TP600 though… so it could be that these acts differently.
---
### Author:  [@WagoGrim](https://www.wago.community/u/WagoGrim)
#### Post date: [October 18, 2022, 7:23am UTC](https://www.wago.community/t/error-running-docker-containers-on-sd-card/283/5 "2022-10-18T07:23:48Z")
I did a quick test. Did you allready have a docker mount, and SD card was allready formatted and mounted once… then formatted once again and/or changed the label. I think you have to update the mounts and not only restart the docker deamon. Maybe safer to reboot the controller. The “failed to create shim” error I also saw in these cases.