Following the 1.4.2 centos 8 1 instance install guide, the following errors line was reported when running postConfigure

Doc following

https://mariadb.com/docs/deploy/single-columnstore-centos8-col14/

$ sudo columnstore-post-install
The next step on the node that will become PM1:

postConfigure

[centos@ip-172-30-0-201 ~]$ sudo postConfigure -qs

This is the MariaDB ColumnStore System Configuration and Installation tool.
It will Configure the MariaDB ColumnStore System and will perform a Package
Installation of all of the Servers within the System that is being configured.

IMPORTANT: This tool requires to run on the Performance Module #1

With the no-Prompting Option being specified, you will be required to have the following:

1. Root user ssh keys setup between all nodes in the system or
use the password command line option.
2. A Configure File to use to retrieve configure data, default to Columnstore.xml.rpmsave
or use the '-c' option to point to a configuration file.

===== Quick Install Single-Server Configuration =====

Single-Server install is used when there will only be 1 server configured
on the system. It can also be used for production systems, if the plan is
to stay single-server.

Performing the Single Server Install.

Enter System Name (columnstore-1) >

===== Setup Storage Configuration =====

----- Setup Performance Module DBRoot Data Storage Mount Configuration -----

Columnstore supports the following storage options...
1 - internal. This uses the linux VFS to access files and does
not manage the filesystem.
2 - external *. If you have other mountable filesystems you would
like ColumnStore to use & manage, select this option.
3 - GlusterFS * Note: glusterd service must be running and enabled on
all PMs.
4 - S3-compatible cloud storage *. Note: that should be configured
before running postConfigure (see storagemanager.cnf)

• - This option enables data replication and server failover in a
  multi-node configuration.

These options are available on this system: [1, 2, 4]
Select the type of data storage (1) >

Enter the list (Nx,Ny,Nz) or range (Nx-Nz) of DBRoot IDs assigned to module 'pm1' (1) >

===== Performing Configuration Setup and MariaDB ColumnStore Startup =====

NOTE: Setting 'NumBlocksPct' to 50%
Setting 'TotalUmMemory' to 25% of total memory.

Running the MariaDB ColumnStore setup scripts

post-mysqld-install Successfully Completed
/sbin/mysql-Columnstore: line 294: hostname: command not found
/sbin/mysql-Columnstore: line 294: hostname: command not found
post-mysql-install Successfully Completed

postConfigure did complete