Error response from daemon

i did your turorial 'Start a mariadb server instance' step by step

from here: https://hub.docker.com/_/mariadb/

but get this error:

sudo docker run -p 127.0.0.1:3306:3306 --name some-mariadb -e MYSQL_ROOT_PASSWORD=my-secret-pw -d mariadb:tag Unable to find image 'mariadb:tag' locally docker: Error response from daemon: manifest for mariadb:tag not found: manifest unknown: manifest unknown. See 'docker run --help'.

please help. ty i using kubuntu

Answer Answered by Daniel Black in this comment.

"tag" is a docker tag. So a version tag like what is on the top of the page, e.g. '10.5', '10.4', '10.5.9'.

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