initscript: add support for b2c.nbd
This enables users to mount an NBD block device, and make use of it as a cache device, swap, or backing for a volume.
This MR is based on !76 to avoid conflicts on README.md.
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This enables users to mount an NBD block device, and make use of it as a cache device, swap, or backing for a volume.
This MR is based on !76 to avoid conflicts on README.md.