How to setup CentOS 7 to boot up to text mode

systemctl -f enable multi-user.target   <= boot to TEXT mode

ln -sf /lib/systemd/system/multi-user.target /etc/systemd/system/default.target <= TEXT mode

ln -sf /lib/systemd/system/graphical.target /etc/systemd/system/default.target <=GUI mode

How to setup SNMP_TRAP in BMC

Hardware environment

SNMP sender

B7079, BIOS v2.03, BMC v7.0 IP:192.168.1.42

SNMP Receiver

Windows 7, IP: 192.168.1.39

MIB file: SNMP_Trap.mib

MIB Browser: iReasoning MIB Browser 11.0

http://www.ireasoning.com/downloadmibbrowserlicense.shtml

B7079 BMC setting

1.      Use Web Browser remote login to B7079 BMC Web interface.

2.      Click PEF in Configuration menu

Login to CentOS 7 without Login Prompt

[root@testcentos7 ~]# vi /etc/systemd/system/getty.target.wants/getty@tty1.service

Find the line

ExecStart=-/sbin/agetty  –noclear %I $TERM

and change to

ExecStart=-/sbin/agetty --autologin root --noclear %I $TERM


Next boot there will be no login prompt for root user


Refer: kallumama Linux Tutorials

How to install PXE server in CentOS 7.3

1.      Install CentOS 7.3

2.      Download CentOS 7.3 iso (CentOS-7-x86_64-DVD-1611.iso) to /home/fae/Downloads

3.      Set IP Address as static IP (one for PXE LAN, one for management LAN)

#cd /etc/sysconfig/network-scripts

Edit PXE LAN configuration (enp10s0)

How to install MXnet in Ubuntu 14.04 LTS

Hardware Configutation

S7050GM2NR

CPU: E5-2650 v3 x1

RAM: DDR4 8GB x4

OS: Ubuntu 14.04 LTS Desktop 64bit

GPU: Nvidia Tesla K80 x1 (Driver: v352.93)

Setup Environment

1.      Install Ubuntu 14.04 LTS Desktop

2.      Boot to text mode

vi /etc/default/grub

mark GRUB_CMDLINE_LINUX_DEFAULT=”quiet”

change GRUB_CMDLINE_LINUX=”text”

umark GRUB_TERMINAL=console

save

update grub via command:

update-grub

reboot system

How to upgrade BIOS via IPMI Web interface

BMC Web interface BIOS upgrade process (B7056)

1.      Remote access BMC Web interface, select Maintenance sub-title. Click “Enter Update mode”.

How to set Habanero BMC MAC address with ipmitool command

1. Power on system to Petitboot