Comment 16 for bug 1867013

yes,I definitely using the my-baremetal-flavor flavor to create the bare node.
and,I think of the 512MB RAM request is create falvor before set zeroed values.
https://docs.openstack.org/kolla-ansible/stein/reference/bare-metal/ironic-guide.html#post-deployment-configuration
https://docs.openstack.org/ironic/stein/install/configure-nova-flavors.html

for example step
Create a baremetal flavor:

openstack flavor create --ram 512 --disk 1 --vcpus 1 my-baremetal-flavor
openstack flavor set my-baremetal-flavor --property \
  resources:CUSTOM_BAREMETAL_RESOURCE_CLASS=1