<p>Installing Kubernetes on Ubuntu I need the <a href="https://kubernetes.io/docs/setup/production-environment/tools/kubeadm/install-kubeadm/#verify-mac-address" rel="nofollow noreferrer">product_uuid</a></p>
<p>Butin my Ubuntu VM(Multipass) I get:</p>
<pre><code>sudo cat /sys/class/dmi/id/product_uuid
cat: /sys/class/dmi/id/product_uuid: No such file or directory
</code></pre>
<p>So I found <a href="http://manpages.ubuntu.com/manpages/bionic/man5/machine-id.5.html" rel="nofollow noreferrer">machine-id</a>:</p>
<pre><code>cat /etc/machine-id
db4b9d9a3b194386b894dba21d7b3fb3
</code></pre>
<p>Is this a valid number for product_uuid when installing K8s or else, where is product_uuid?</p>
<p>Thanks</p>

Chris G.
<p><code>product_uuid</code> is main <a href="http://0pointer.de/blog/projects/ids.html" rel="nofollow noreferrer">board product UUID</a>(set by the board manufacturer) and  may be used to identify a mainboard.</p>
<p><code>machine-id</code> is a unique id specific to a linux installation.</p>
<pre><code>ubuntu@k3s:~$ sudo dmidecode --type 1
# dmidecode 3.3
Getting SMBIOS data from sysfs.
SMBIOS 3.0.0 present.

Handle 0x0100, DMI type 1, 27 bytes
System Information
    Manufacturer: QEMU
    Product Name: QEMU Virtual Machine
    Version: virt-6.2
    Serial Number: Not Specified
    UUID: Not Settable
</code></pre>
<p>Since multipass spins up a VM, product_uuid wont be available. k8s just needs a unique identifier, so machine-id should work.</p>
