New cluster install, first cluster node doesn't show as

I’ve been trying to install Percona onto a 3 node cluster. I cant’ even get the first node to show up a cluster size of 1:

mysql> show status like 'wsrep%';
+--------------------------+----------------------+
| Variable_name | Value |
+--------------------------+----------------------+
| wsrep_cluster_conf_id | 18446744073709551615 |
| wsrep_cluster_size | 0 |
| wsrep_cluster_state_uuid | |
| wsrep_cluster_status | Disconnected |
| wsrep_connected | OFF |
| wsrep_local_bf_aborts | 0 |
| wsrep_local_index | 18446744073709551615 |
| wsrep_provider_name | |
| wsrep_provider_vendor | |
| wsrep_provider_version | |
| wsrep_ready | ON |
+--------------------------+----------------------+
11 rows in set (0.00 sec)

running:
sudo /etc/init.d/mysql bootstrap-pxc

produces this:
[ ok ] Bootstrapping Percona XtraDB Cluster database server: mysqld already running.

So I have no idea why the cluster size is not 1.

Hi,

There are blank entries for ‘wsrep_provider_name’, ‘wsrep_provider_vendor’, etc… It doesn’t look like galera was loaded correctly,

You can check the logs for lines like:
2017-07-27 08:36:41 120457 [Note] WSREP: wsrep_load(): loading provider library ‘/path/to/libgalera_smm.so’
2017-07-27 08:36:41 120457 [Note] WSREP: wsrep_load(): Galera 3.21(r8678538) by Codership Oy <info@codership.com> loaded successfully

to see if it was loaded successfully. If the library is not found, the node will start up as a normal Percona Server node.

Where do I find the logs?

I just installed this using the installation guide on your web site (sudo apt-get install percona-xtradb-cluster-56)

I tried removing it entirely using:

First of all, check your configuration files. You need some wsrep* settings to get the cluster going.
Check the documentation:
https://www.percona.com/doc/percona-xtradb-cluster/LATEST/configure.html