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Offline environment installation

The offline environment only needs to import the image in advance, and other steps are the same as the online installation. First save the installation package in a networked environment:

$ sealos pull labring/kubernetes:v1.25.0
$ sealos save -o kubernetes.tar labring/kubernetes:v1.25.0

Copy kubernetes.tar to the offline environment, and use the load command to import the image:

$ sealos load -i kubernetes.tar

The rest of the installation method is the same as the online installation.

$ sealos images # Check whether the cluster image is imported successfully
$ sealos run kuberentes:v1.25.0 --single # Single machine installation, cluster installation is the same