net.lundman.zfs (1.3.0) zpool upgrade where no pool exists

gpes3-gjp4-14A298i-sshd-2012:~ grahamperrin501$ sw_vers ; zpool upgrade ; zpool status
ProductName:	Mac OS X
ProductVersion:	10.10
BuildVersion:	14A298i
This system supports ZFS pool feature flags.

All pools are formatted using feature flags.

Every feature flags pool has all supported features enabled.
no pools available
gpes3-gjp4-14A298i-sshd-2012:~ grahamperrin501$