Migrating the iocage Dataset to Another Pool

First, you migrate your pools like this : 
 iocage stop ALL
zfs unmount -f tank/iocage
zfs snapshot -r tank/iocage@migration
zfs send -R tank/iocage@migration | zfs receive -v dozer/iocage
iocage clean -a
zfs destroy -f tank/iocage
iocage activate dozer
zfs destroy -r dozer/iocage@migration 
 Here, you should use your own pool names. The old pool is named tank , the new one  dozer 
 Then, you could need to edit your jail mount points. To do this, you have to : 1. Set nano  as your editor (optional if you know how to search and replace with  vi ) 
 EDITOR=/usr/local/bin/nano; export EDITOR 
 Then edit the fstab of your jails 
 iocage fstab -e yourjail 
 Then do search and replace all with nano , searching with your old mountpoint  /mnt/tank/iocage  with  /mnt/dozer/iocage 
 Tested on 11.2U1