Comment 5 for bug 1750519

I've deployed three machines with exactly the same config. One deployed, two didn't. When I removed the bcache from those other two, they still failed to deploy (saying that md0 device is in use). I've wiped the disks now, and that will tell me if it works on clean machines.

However, expectation is that machines can be reused with MAAS and therefore curtin should clean up the disks before it assembles any bcaches or raids. IMHO.