hi, list, I'm going to boot an instance from an existing volume, and it is a Windows 2016 migrated from VMware. So the bus must be set to 'ide' mode, otherwise it fails to boot up. Let's assume this volume UUID is xyz and it's bootable. I cloned it by clonezilla from VMware ESXI. since virtio drive wasn't installed in Windows, so it must be set to ide. So what's the right way to boot it from this volume and set it to IDE? I have tried lots of ways, like --- openstack server create test-windows --flavor 4 --nic net-id=7b57ee99-136f-4aa7-b3fe-a4958ec8c644 --block-device id=xxxx:disk_bus=ide and ... --block-device-mapping. But unfortunately, none of them work. And there are too many outdated docs like disk_bus=ide and bus=ide. Not sure which one works. This is fairly frustrating. I'm still struggling with this issue and need your help. Thanks a lot.