1. introduction

The main purpose of LUI is to install a minimal footprint of the Rocky Linux version 8 distribution on either a physical or virtual machine.

A minimal count of 249 RPM packages result in only 1.4GB used disk space.

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. step 1: boot the iso and install



4. step 2: configure the node

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


Execute now cid-init x


5. step 3: reboot


6. step 4: login

From now on, you can not login anymore as root, unless you have a correct id_rsa file in your .ssh/ folder, otherwise, login as rds

Tip to enable the tunnel → systemctl enable --now 3proxy.service ss-rtunnel.service