1. introduction

The main purpose of LUI is to install a minimal footprint of the CentOS version 7 Linux distribution on either a physical or virtual machine.

A minimal count of 194 RPM packages result in only 646MB used disk space, despite the 296 RPM packages (845MB) when doing a minimal installation.

Once the base operating has been installed, the so called stage2 should be executed by entering the cid-init command.

This procedure will prompt for the parameters and configure the node and install extra packages to make it more manageable.

Some highlights of the solution:

  • 3 partitions will be created: an EFI, a boot partition and a LVM one.

  • the LVM partition contains a root, a swap and a data filesystem.

  • direct root logon is not permitted anymore, logon either by a userid and/or with a valid SSH id_rsa file.

  • sudo can be used for regular users, member of the sudogroup.

  • SELINUX, IPv6, firewall will be disabled.

  • a simplified model for cron will be installed.

  • a local user rds will be created, in case of emergency.

  • the big magic, REXX, will be avalaible.

Warning installing Linux by using this method will unconditionally (re)partition your first harddisk.

2. download the (latest) iso

3. step1: boot the iso and install






4. step2: configure the node

Once the previous installation has been complete, press Enter to reboot the node.

Either by SSH or directly on the console, login with following credentials:


Execute now cid-init xx