zpool: ../../lib/libzfs/libzfs_import.c:356: Assertion `nvlist_lookup_uint64(zhp->zpool_config, ZPOOL_CONFIG_POOL_GUID, &theguid) == 0′ failed.Zpools would not import and zpool status did not work. Resolved (so far, anyhow, still testing) by running:
apt-get install zfsutilsAnother good reason to have test environments…