When working with Container Runtimes (CRI-O, containerd), standard tools like ls and cp often aren't enough to manage the complex layered filesystems used by containers.
Click and paste the folder path where your cpkmakec.exe is located. Click OK to save and close all windows. Method 2: Installing CRI Tools on Linux and macOS
Which is running on your host ( containerd or cri-o )? What Linux distribution and version are you configuring?
Before installing the tools, it is crucial to understand which tool fits your specific runtime environment.
To see what files have been modified or written to a container's read-write layer during its execution: cri file system tools install
Fetch the compressed tarball matching your system architecture.
Navigate to the official CRI-tools release page and download the appropriate version matching your Kubernetes cluster version.
# kubectl is already present; use it to attach a debug container kubectl debug -it <pod-name> --image=busybox --target=<container-name>
Look at the column. It will typically display containerd:// or cri-o:// . You must install the CRI tools on the actual worker node where these runtimes are executing. Step 2: Install CRI Tools ( crictl ) Method 2: Installing CRI Tools on Linux and
To see how much space your container images and writable layers are consuming on the host file system, run: sudo crictl stats Use code with caution.
Move the binary to a directory in your system $PATH , such as /usr/local/bin .
By default, crictl points to the Docker socket. You must redirect it to your runtime.
sudo du -sh /var/lib/containerd/io.containerd.snapshotter.v1.overlayfs/snapshots/*/fs | sort -h To see what files have been modified or
Since "CRI" (Container Runtime Interface) usually refers to the runtime layer, "file system tools" in this context almost always refers to —most notably Nydus , OverlayFS utilities , or CRIU (Checkpoint/Restore).
sudo apt-get update && sudo apt-get install -y apt-transport-https ca-certificates curl curl -fsSL https://k8s.io | sudo gpg --dearmor -o /etc/apt/keyrings/kubernetes-apt-keyring.gpg echo 'deb [signed-by=/etc/apt/keyrings/kubernetes-apt-keyring.gpg] https://k8s.io /' | sudo tee /etc/apt/sources.list.d/kubernetes.list sudo apt-get update sudo apt-get install -y cri-tools Use code with caution.
cat <<EOF | sudo tee /etc/yum.repos.d/kubernetes.repo [kubernetes] name=Kubernetes baseurl=https://pkgs.k8s.io/core:/stable:/v1.30/rpm/ enabled=1 gpgcheck=1 gpgkey=https://pkgs.k8s.io/core:/stable:/v1.30/rpm/repodata/repomd.xml.key EOF sudo yum install -y cri-tools