Live setup/config of Dell iDRAC on CentOS 7

setup_idrac_on_centos7.sh

#!/bin/bash

# 0. Get iDRAC command-line tools
# (we use Dell EMC iDRAC Tools for Linux, v9.3.1)
# (for reference, use this link: https://dl.dell.com/FOLDER05818335M/1/DellEMC-iDRACTools-Web-LX-9.3.1-3669_A00.tar.gz)

# 1. extract & install tools (install script is USELESS/root privilege is required)
tar -xf DellEMC-iDRACTools-Web-LX-*.tar.gz
yum install iDRACTools/racadm/RHEL7/x86_64/srvadmin-*.rpm
alternatives --install /usr/sbin/racadm racadm /opt/dell/srvadmin/sbin/racadm 1

# 2a. set NIC configuration (root privilege is required)
# to get current NIC config,
racadm getniccfg

# 2b. set iDRAC LAN operation as shared with LOM3 (root privilege is required)
racadm config -g cfgLanNetworking -o cfgNicSelection LOM3 && racadm getconfig -g cfgLanNetworking -o cfgNicSelection
# or
racadm set iDRAC.NIC.Selection LOM3 && racadm get iDRAC.NIC.Selection

# 2c. set iDRAC IPv4 address (root privilege is required)
racadm setniccfg -s <ipv4_address> <subnetmask> <ipv4_gateway> && racadm getniccfg

# 3. reset iDRAC (root privilege is required)
racadm racreset