For macOS users, the easiest way to install cri-tools is through the Homebrew package manager.
Extract the archive and move the binary to /usr/local/bin/ so it can be executed globally.
sudo mount-rootfs --image /var/lib/containerd/io.containerd.content.v1.content/blobs/sha256/<hash> /mnt/cri-rootfs # when done: sudo umount /mnt/cri-rootfs
| Problem | Solution | |---------|----------| | failed to connect | Check runtime socket path in /etc/crictl.yaml | | command not found | Binary not in PATH → reinstall or add /usr/local/bin | | permission denied | Run with sudo or add user to containerd / cri-o group |
: A simple drag-and-drop tool to create CPK files quickly. cri file system tools install
Installing CRI file system tools is not a single command but a procedure dependent on the container runtime and the host operating system. Below is a structured approach.
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
CRI file system tools interact directly with the CRI gRPC API. They allow you to look inside container images, layers, and snapshotters without needing the full Kubernetes control plane running. The most common toolsets used for this purpose are:
sudo apt-get install -y ceph-common rbd ls --pool kubernetes For macOS users, the easiest way to install
# Add Kubernetes repository (contains cri-tools) sudo apt-get update sudo apt-get install -y apt-transport-https ca-certificates curl curl -fsSL https://pkgs.k8s.io/core:/stable:/v1.30/deb/Release.key | sudo gpg --dearmor -o /etc/apt/keyrings/kubernetes-apt-keyring.gpg echo 'deb [signed-by=/etc/apt/keyrings/kubernetes-apt-keyring.gpg] https://pkgs.k8s.io/core:/stable:/v1.30/deb/ /' | sudo tee /etc/apt/sources.list.d/kubernetes.list sudo apt-get update sudo apt-get install -y cri-tools
: This indicates that the runtime-endpoint path in /etc/crictl.yaml is wrong or your container runtime service is stopped. Double-check your socket path.
sudo ls -la /var/lib/containerd/io.containerd.snapshotter.v1.overlayfs/snapshots/23/fs
curl -LO https://github.com/containerd/nerdctl/releases/download/v1.7.6/nerdctl-1.7.6-linux-amd64.tar.gz sudo tar Cxzvvf /usr/local/bin nerdctl-1.7.6-linux-amd64.tar.gz Installing CRI file system tools is not a
Step 4: Installing Low-Level File System Tools ( ctr and nerdctl )
Create config file:
: Besides the config file, you can also set the endpoint using: