# Cannot link to a non running container
**URL:** https://discuss.tryton.org/t/cannot-link-to-a-non-running-container/3101
**Category:** User
**Tags:** docker
**Created:** [August 6, 2020, 2:15pm UTC](https://discuss.tryton.org/t/cannot-link-to-a-non-running-container/3101 "2020-08-06T14:15:06Z")
**Posts on this page:** 4
**Page:** 1
### Author:  [@herrdeh](https://discuss.tryton.org/u/herrdeh)
#### Post date: [August 6, 2020, 2:15pm UTC](https://discuss.tryton.org/t/cannot-link-to-a-non-running-container/3101/1 "2020-08-06T14:15:06Z")
Me again… ):
As I had trouble to replay a modified database to the tryton-postgres container, I tried to create a new tryton-postgres container. I removed the old one and then carried out the instructions from the installation site:
```
$ docker run --name tryton-postgres -e POSTGRES_PASSWORD=mysecretpassword -e POSTGRES_DB=tryton -d postgres
$ docker run --link tryton-postgres:postgres -e DB_PASSWORD=mysecretpassword -it tryton/tryton trytond-admin -d tryton --all
```
Then I replayed the sql dump, the only error message is:
ERROR: role “grptryton” does not exist
Restarted tryton-postgres and got a running tryton-postgres container:
$ sudo docker ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
e6b93444d180 postgres “docker-entrypoint.s…” 3 minutes ago Up 3 minutes 5432/tcp tryton-postgres
Now, when starting tryton:
$ sudo docker start tryton
Error response from daemon: Cannot link to a non running container: /tryton-postgres AS /tryton/postgres
Error: failed to start containers: tryton
What can I do?
Thanks lot in advance,
Wolf
---
### Author:  [@ced](https://discuss.tryton.org/u/ced)
#### Post date: [August 6, 2020, 9:58pm UTC](https://discuss.tryton.org/t/cannot-link-to-a-non-running-container/3101/2 "2020-08-06T21:58:49Z")
> [@herrdeh](#):
>
> Then I replayed the sql dump, the only error message is:
> ERROR: role “grptryton” does not exist
If you restore a backup, you should not initialize the database (which means no running trytond-admin).
The error about missing role should not be a problem as long as you restore the database using the same role that will be used by trytond.
> [@herrdeh](#):
>
> Now, when starting tryton:
> $ sudo docker start tryton
> Error response from daemon: Cannot link to a non running container: /tryton-postgres AS /tryton/postgres
> Error: failed to start containers: tryton
I guess you must remove the previous tryton container as it is still linked to the old postgres container.
---
### Author:  [@herrdeh](https://discuss.tryton.org/u/herrdeh)
#### Post date: [August 7, 2020, 10:39am UTC](https://discuss.tryton.org/t/cannot-link-to-a-non-running-container/3101/3 "2020-08-07T10:39:52Z")
Yess! (-;
Creating a new tryton container which then links to the postgres did it.
As always - I’m very grateful!
Cheers,
Wolf
---
### Author:  [@system](https://discuss.tryton.org/u/system)
#### Post date: [September 6, 2020, 10:48am UTC](https://discuss.tryton.org/t/cannot-link-to-a-non-running-container/3101/4 "2020-09-06T10:48:11Z")
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