Comment 5 for bug 1680409

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James Page (james-page) wrote : Re: [2.1.5] Deployment failure with bcache devices

OK so that appears to have done the trick; we:

1) deployed the machine using flat layout on /dev/sda only
2) added the partition to /dev/nvme0n1 - which triggered the udev rule for bcache to consume the device.
3) at this point in time it was not possible to wipefs the partition as it was busy
4) stopped the bcache cache device using echo 1 > /sys/fs/bcache/bab46690-0a04-418b-8c1b-41df57821259/stop
5) wipefs -a /dev/nvme0n1p1

Released, reconfigured and re-deployed the machine using bcache layout with multi bcache devices and the machine now fully deploys with the required configuration.