Lenovo RackSwitch G8272 User manual

Lenovo RackSwitch G8272
ONIE Quick Start Guide
for Lenovo Network Operating System

Note: Before using this information and the product it supports, read the general information in the
Safety information and Environmental Notices and User Guide documents on the Lenovo Documentation CD,
and the Warranty Information document that comes with the product.
First Edition (February 2017)
© Copyright Lenovo 2017
LIMITED AND RESTRICTED RIGHTS NOTICE: If data or software is delivered pursuant a General
Services Administration “GSA” contract, use, reproduction, or disclosure is subject to restrictions set
forth in Contract No. GS-35F-05925.
Lenovo and the Lenovo logo are trademarks of Lenovo in the United States, other countries, or both.

© Copyright Lenovo 2017 Contents 3
Contents
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Connecting to the G8272 . . . . . . . . . . . . . . . . . . . . . 6
Switch Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Mini-USB Serial Console Port . . . . . . . . . . . . . . . . . . . . 7
Geographic Layout of the Temperature Sensors . . . . . . . . . . . . . 8
ONIE on the G8272 . . . . . . . . . . . . . . . . . . . . . . . 10
Installing the ONIE FoD License Key . . . . . . . . . . . . . . . . . . .11
Obtaining the ONIE License Key . . . . . . . . . . . . . . . . . . .11
Installing the ONIE License Key on ENOS . . . . . . . . . . . . . . .12
Uninstalling the ONIE License Key on ENOS . . . . . . . . . . . .12
Installing the ONIE License Key on CNOS . . . . . . . . . . . . . . .13
Uninstalling the ONIE License Key on CNOS . . . . . . . . . . . .13
Installing ONIE . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
Installing ONIE on ENOS . . . . . . . . . . . . . . . . . . . . . .14
Installing ONIE on CNOS . . . . . . . . . . . . . . . . . . . . . .16
Booting in ONIE Mode . . . . . . . . . . . . . . . . . . . . . . . . .18
Booting in ONIE Install Mode . . . . . . . . . . . . . . . . . . . .19
Booting in ONIE Uninstall Mode . . . . . . . . . . . . . . . . . . .20
Booting in ONIE Update Mode . . . . . . . . . . . . . . . . . . . .21
Booting in ONIE Rescue Mode . . . . . . . . . . . . . . . . . . . .21
The Boot Management Menu . . . . . . . . . . . . . . . . . . . . . .22
Uninstalling the Lenovo Network OS . . . . . . . . . . . . . . . . . . .23
Using ONIE without Lenovo Network OS . . . . . . . . . . . . . . . . .24

4 Lenovo ONIE Quick Start Guide for G8272

© Copyright Lenovo 2017 5
Overview
The Open Network Install Environment (ONIE) is a small Linux-based operating
system that provides an open install environment for network switches without
operating systems.
ONIE enables a network switch ecosystem where end-users can choose among
different Network Operating Systems (NOS). Practically, ONIE boots on a switch,
discovers NOS installer images available on the local network or USB drive, copies
the chosen image to the switch, and provides an environment where the installer
can load the NOS onto the switch.
ONIE is classified as free software, meaning it can be redistributed and/or modified
under the terms of version 2 of the GNU General Public License as published by the
Free Software Foundation. To read the license, visit the following link:
https://github.com/opencomputeproject/onie/blob/master/COPYING
For more details about ONIE, go to onie.org .
Lenovo ONIE Image
To download the Lenovo ONIE image, visit the following website:
http://support.lenovo.com/
The ONIE images for the G8272 have the [ONIE] tag in their name, as follows:
for Lenovo Enterprise Network OS:
Lenovo Rackswitch G8272 [ONIE] v8.4.x.0
for Lenovo Cloud Network OS:
Lenovo Rackswitch G8272 [ONIE] 10.x.x.0
Open-Source ONIE Image
To download an open-source ONIE image, go to the following link:
https://github.com/lenovo/networking-onie/tree/master/lenovo_g8272
The image is called onie-lenovo_g8272-r0.bin .

6 Lenovo ONIE Quick Start Guide for G8272
Connecting to the G8272
This section describes how to connect to the Lenovo RackSwitch G8272. For more
details about the switch and on how to install the switch hardware, consult the
Lenovo RackSwitch G8272 Installation Guide .
Switch Unit
The G8272 is a 1U GbE switch and it can be rack-mounted in a horizontal position.
The following illustrations show the features on the front and rear panels of the
switch:
Figure 1. G8272 front panel
Figure 2. G8272 management panel detail
Figure 3. G8272 rear panel
SFP+ PortsManagement Panel QSPF+ Ports
19
210
3
4
5
6
7
8
29
17
30
18
11 31
19
12 32
20
25
13 21
26
14 22
27
15 23
2816 24
49
37 47
50
38 48
5139
52
40
53
33 41
54
34 42
35 45 43
36 46
44
RJ-45
Management Port
Mini-USB
Serial Console Port
Reset Button
Mini-USB
Serial Console Port
USB Port
RJ-45
Management Port
Status LEDs
4 3 2 1
2
1

© Copyright Lenovo 2017 Connecting to the G8272 7
Mini-USB Serial Console Port
The mini-USB port on the front management panel is available for switch console
management. The port operates using RS-232 serial communications. A compatible
console cable kit is included with the switch.
To connect a computer or terminal to the switch using the included kit, first connect
the console cable to the mini-USB port on the front panel. Connect one end of the
Category 5 patch cable to the RJ-45 port on the console cable and the other end of
the patch cable to the RJ-45-to-DB9 adapter (see the following illustration).
Figure 4. Console cable connections
The computer or terminal must run a terminal emulator (for example, SecureCRT,
HyperTerminal, or PuTTY). The console port terminal emulation requirements are
as follows:
• Default baud rate: 9,600 bps
• Character size: 8 characters
• Parity: none
• Stop bits: 1
• Data bits: 8
• Flow control: none
To PC
Terminal
To
Switch
RJ-45 Adapter
Category 5
Patch Cable
Switch
Console Cable

8 Lenovo ONIE Quick Start Guide for G8272
Geographic Layout of the Temperature Sensors
The following illustrations show the location of the temperature sensors (pointed
out with red arrows) on the main and CPU boards.
Figure 5. G8272 CPU Board Temperature Sensors
CPU Local
U21, TCN75AVOA713,
I2C @ 1001.011x on IIC1 bus

© Copyright Lenovo 2017 Connecting to the G8272 9
Figure 6. G8272 Main Board Temperature Sensors
Hot Spot U41, G751, I2C @ 1001.100x on CH4 of PCA9548, IIC1 bus
Ambient U7, G751, I2C @ 1001.100x on CH3 of PCA9548, IIC1 bus
Asic Max U57, BCM56854

10 Lenovo ONIE Quick Start Guide for G8272
ONIE on the G8272
The Lenovo RackSwitch G8272 comes out of the box with Lenovo Enterprise
Network OS (ENOS) already installed on the switch.
To ensure maximum security, ONIE is not available on the switch by default. To
enable the running of ONIE on the switch, you must follow these steps:
1. Download and install a compatible Lenovo Network OS.
You can download the latest Lenovo NOS images from the following link:
http://support.lenovo.com/
You can install ONIE on G8272s running:
Lenovo Enterprise Network OS (ENOS) version 8.4 or later
Lenovo Cloud Network OS (CNOS) version 10.1 or later
Note: Check the Lenovo RackSwitch G8272 Release Notes associated with each
Lenovo Network OS to verify if ONIE is an available feature.
For details on how to upgrade the switch operating system from ENOS to CNOS,
see the
Lenovo RackSwitch G8272 Release Notes for Lenovo Cloud Network Operating
System
.
2. Obtain and install an ONIE Feature on Demand (FoD) license key.
For details on how to acquire and install the ONIE FoD license key on the switch,
see
“Installing the ONIE FoD License Key” on page 15 .
3. Download and install an ONIE image.
For details on how to install ONIE on the switch, see “Installing ONIE” on page 18 .