diff --git a/develop/develop-images/baseimages.md b/develop/develop-images/baseimages.md index 8ef261f767..9457913dae 100644 --- a/develop/develop-images/baseimages.md +++ b/develop/develop-images/baseimages.md @@ -34,17 +34,17 @@ use to build Ubuntu images. It can be as simple as this to create an Ubuntu parent image: - $ sudo debootstrap xenial xenial > /dev/null - $ sudo tar -C xenial -c . | docker import - xenial + $ sudo debootstrap focal focal > /dev/null + $ sudo tar -C focal -c . | docker import - focal - a29c15f1bf7a + sha256:81ec9a55a92a5618161f68ae691d092bf14d700129093158297b3d01593f4ee3 - $ docker run xenial cat /etc/lsb-release + $ docker run focal cat /etc/lsb-release DISTRIB_ID=Ubuntu - DISTRIB_RELEASE=16.04 - DISTRIB_CODENAME=xenial - DISTRIB_DESCRIPTION="Ubuntu 16.04 LTS" + DISTRIB_RELEASE=20.04 + DISTRIB_CODENAME=focal + DISTRIB_DESCRIPTION="Ubuntu 20.04 LTS" There are more example scripts for creating parent images in [the Docker GitHub repository](https://github.com/docker/docker/blob/master/contrib). @@ -86,7 +86,7 @@ current directory. > You can use a Docker container to build it: > > ```bash -> $ docker run --rm -it -v $PWD:/build ubuntu:16.04 +> $ docker run --rm -it -v $PWD:/build ubuntu:20.04 > > container# apt-get update && apt-get install build-essential > container# cd /build