Converting jail volume from UFS to ZFS

[Diekatzchen]

I have a number of jails, and they're set up /almost/ perfect. The only thing wrong with them is that they're on a UFS volume. I want to move them temporarily to my data volume, reformat the jail volume as ZFS, and then import them back in such a way that each jail is its own dataset so I can snapshot them. That last part is what I'm unclear on. Any pointers?

 

[cyberjock]

I don't think you can convert them. jails on a zpool use snapshots. Obviously you can't use snapshots on UFS since there is no snapshot feature. I'm not sure what the best solution is except to either stay on UFS or destroy the jails and redo the configuration of the jails.

 

[dlavigne]

You might be able to by running warden from the web shell of the FreeNAS system. Specifically, you would want to export each individual jail into a .wdn file, then import each .wdn into its own dataset.

The warden help dialog is fairly helpful and there is some documentation to get you started here: http://wiki.pcbsd.org/index.php/Warden®/9.2#Using_the_Command_Line_Version_of_Warden.C2.AE. If you try it, let us know whether or not it worked.