storage format provide consistent paths (dname)

[Scott Moser]

MAAS would like to be able to let the user give a disk (or raid device or md device) a "name" such that the user can then address the block device by that name.

in http://paste.ubuntu.com/10939715/
the key 'name' means that is the desireable name for the user.
We should restrict that name to not include spaces or /.

Then, curtin should set udev rules so that the device is available at:
  /dev/disk/by-dname/<name>
and partitions on it are:
  /dev/disk/by-dname/<name>-part<partitionNumber>

An example of something that does almost exactly that is:
in http://bazaar.launchpad.net/~cloud-init-dev/cloud-init/trunk/view/head:/udev/66-azure-ephemeral.rules

[Scott Moser (smoser)]

This bug is believed to be fixed in curtin in 17.1. If this is still a problem for you, please make a comment and set the state back to New

Thank you.