2 out of 3 of my nodes are saying this message during installation. All 3 are equal and node 1 installed just fine. This is node 3 attached. I’ve logged in as root, deleted all partitions using fdisk and rebooted. Still get the “disk is in use by system” message every time.
3 identical Servers: Lenovo HX7500 / System x3650 M5
Here is image of the sda partition after install fails. This was wiped by fdisk before rebooting: