Docker is not using a supported storage driver

installation
2

From the docker manual:

  • The vfs storage driver is intended for testing purposes, and for situations where no copy-on-write filesystem can be used. Performance of this storage driver is poor, and is not generally recommended for production use.

You may want to read Docker storage drivers | Docker Documentation and change to either aufs or overlay2.

Following our official install guide in a Ubuntu 18.04 server will give you a supported storage driver.

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