Migrating vinum to gvinum

[Simon Walton]

   I believe the on-disk structure for vinum and gvinum are the same so
you can move volumes unchanged from one to the other. I have moved vinum
volumes from 4.11 to 6.1 without any problem (including mirrored, striped
and raid-5 on the same host). You have to move the mount device from
/dev/vinum to /dev/gvinum of course.

   If you're using vinum for the root drive things may be more complex -
I haven't any experience of that.

Simon