Lenovo ThinkSystem NE2572 User manual

Lenovo ThinkSystem NE2572 RackSwitch
ONIE Quick Start Guide
for Lenovo Cloud 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 (September 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 NE2572 . . . . . . . . . . . . . . . . . . . . 6
Switch Unit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
RJ45 Serial Console Port . . . . . . . . . . . . . . . . . . . . . . . 7
Geographic Layout of the Temperature Sensors . . . . . . . . . . . . . 8
ONIE on the NE2572 . . . . . . . . . . . . . . . . . . . . . . . 11
ONIE Activation . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Installing ONIE. . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Booting in ONIE Mode . . . . . . . . . . . . . . . . . . . . . . . . 19
Booting in ONIE Install Mode. . . . . . . . . . . . . . . . . . . . 19
Booting in ONIE Uninstall Mode . . . . . . . . . . . . . . . . . . 20
Booting in ONIE Update Mode . . . . . . . . . . . . . . . . . . . 21
Booting in ONIE Rescue Mode . . . . . . . . . . . . . . . . . . . 23
The Grub Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
The BIOS Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Uninstalling the Lenovo Network OS . . . . . . . . . . . . . . . . . . 29
Using ONIE without Lenovo Network OS . . . . . . . . . . . . . . . . 30

4 Lenovo ONIE Quick Start Guide for NE2572

© 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 on a 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 .

6 Lenovo ONIE Quick Start Guide for NE2572
Connecting to the NE2572
This section describes how to connect to the Lenovo ThinkSystem NE2572
RackSwitch. For more details about the switch and on how to install the switch
hardware, consult the
Lenovo ThinkSystem NE2572 RackSwitch Installation Guide .
Switch Unit
The NE2572 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. NE2572 front panel
Figure 2. NE2572 management panel detail
Figure 3. NE2572 rear panel
25 GbE SFP28 Ports
Management Panel 100 GbE QSPF28 Ports
RJ45
Management
Port
USB
Port
Reset
Button
Status
LEDs
RJ45
Console Port

© Copyright Lenovo 2017 Connecting to the NE2572 7
RJ45 Serial Console Port
The RJ45 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, connect one
end of the Category 5 patch cable to the RJ-45 console port of the switch 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: 115,200 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

8 Lenovo ONIE Quick Start Guide for NE2572
Geographic Layout of the Temperature Sensors
The following table offers information about the CPU board temperature sensor
which is shown in
Figure 5 (pointed out with red).
The following table offers information about the main board temperature sensors
which are shown in
Figure 6 (pointed out with red).
Table 1. NE2572 CPU Board Temperature Sensors Information
Name of Temperature Sensor Sensor Information
U7 - Thermal sensor for CPU I2C @ 1001-111X on Intel CPU SMBus 0
Table 2. NE2572 Main Board Temperature Sensors Information
Name of Temperature Sensor Sensor Information
U2 - Rear of the Card I2C @ 1001-100X on CH3 of PCA9548
Intel CPU SMBus 0
U38 - Hot Spot I2C @ 1001-101X on CH2 of PCA9548
Intel CPU SMBus 0

© Copyright Lenovo 2017 Connecting to the NE2572 9
Figure 5. NE2572 CPU Board Temperature Sensors

10 Lenovo ONIE Quick Start Guide for NE2572
Figure 6. NE2572 Main Board Temperature Sensors

© Copyright Lenovo 2017 ONIE on the NE2572 11
ONIE on the NE2572
The Lenovo ThinkSystem NE2572 RackSwitch comes out of the box with Lenovo
Cloud Network OS (CNOS) already installed on the switch.
The switch also has ONIE pre-installed, however to ensure maximum security it is
deactivated by default. To enable ONIE on the switch, see
“ONIE Activation” on
page 12
.

12 Lenovo ONIE Quick Start Guide for NE2572
ONIE Activation
The ThinkSystem NE2572 RackSwitch comes out of the box with ONIE
pre-installed, however it is disabled by default. To activate ONIE on the switch, use
the following steps:
1. Connect to the device as shown in “Connecting to the NE2572” on page 6 and then
boot up the switch.
Note: If the device is already up and running, reload the switch using the
following commands:
2. During the startup procedure, press either the Delete or the Esc key to enter the
Basic Input/Output System (BIOS) menu.
The BIOS menu appears on screen.
NE2572> enable
NE2572# reload
INIT: reboot: Restarting system
...
Press <DEL> (Terminal Not applicable) or <ESC> to enter setup...

© Copyright Lenovo 2017 ONIE on the NE2572 13
3. After entering the BIOS menu, navigate to the “Security” tab.
4. Select “Secure Boot menu”.

14 Lenovo ONIE Quick Start Guide for NE2572
5. Select the “Secure Boot” setting and change it from [Enabled] to [Disabled].
6. Press F4 to save the changes and exit the BIOS menu. The switch reloads and then
runs with secure boot disabled.
After the reloading process is complete, ONIE is activated on the switch. This
means you can now boot the switch into an ONIE mode. For more details, see
“Booting in ONIE Mode” on page 19 .
Note: To deactivate ONIE, follow the previous steps, except at Step 4 change the
“Secure Boot” setting from [Disabled] to [Enabled].

© Copyright Lenovo 2017 ONIE on the NE2572 15
Installing ONIE
The ThinkSystem NE2572 RackSwitch comes out of the box with ONIE
pre-installed.
If you have removed ONIE from the switch, you can use the following steps to
reinstall it:
1. Download the ONIE image for the NE2572 from the following link:
http://support.lenovo.com/
The ONIE image for the NE2572 is called:
onie-recovery-x86_64-lenovo_ne2572-r0.iso
2. Create a bootable USB flash drive using the downloaded ONIE image by following
these steps:
Download and install an utility that allows you to create a bootable USB flash
drive. For example, you can use Rufus:
https://rufus.akeo.ie/
Launch Rufus and navigate to the “Create a bootable disk using” setting. Click
on the icon to the far right and select the previously downloaded ONIE image.
Select “DD Image” from the drop down list next to the “Create a bootable disk
using” setting.
Click the “Start” button and agree with any prompts that appear.
Your USB flash drive is now ready to boot ONIE.
3. Plug in the bootable USB device into the switch using the USB convertor cable that
comes in the box with the NE2572.
4. Connect to the switch using the mini-USB serial console port. For more details, see
“Connecting to the NE2572” on page 6.
5. After connecting to the switch, if the switch is operational, enter Privileged EXEC
configuration mode and reload the switch.
NE2572> enable
NE2572# reload

16 Lenovo ONIE Quick Start Guide for NE2572
6. During the boot procedure, press either the Delete or the Esc key to enter the Basic
Input/Output System (BIOS) menu.
The BIOS menu appears on screen.
7. After entering the BIOS menu, navigate to the “Security” tab.
INIT: reboot: Restarting system
...
Press <DEL> (Terminal Not applicable) or <ESC> to enter setup...

© Copyright Lenovo 2017 ONIE on the NE2572 17
8. Select “Secure Boot menu”.
9. Select the “Secure Boot” setting and change it from [Enabled] to [Disabled].
10. Press F4 to save the changes and exit the BIOS menu. The switch reloads and then
runs with secure boot disabled.
11. Enter the BIOS menu again, as described in Step 6.

18 Lenovo ONIE Quick Start Guide for NE2572
12. Navigate to the “Save & Exit” tab.
13. Select the “Boot Override” setting and change it by selecting your USB flash drive.
14. A menu appears presenting two ONIE install options. Select the second option,
“ONIE: Embed ONIE”.
ONIE boots from the USB flash drive, installs itself on the switch, and then reloads
the NE2572.

© Copyright Lenovo 2017 ONIE on the NE2572 19
Booting in ONIE Mode
After you activate ONIE, you can boot the switch in ONIE mode. ONIE offers four
modes for booting, each providing a different operation:
ONIE install mode
ONIE rescue mode
ONIE uninstall mode
ONIE update mode
There are three ways to boot the switch in an ONIE mode:
using the Command Line Interface (CLI):
Lenovo Cloud Network OS:
–startup image onie-image install
–startup image onie-image rescue
–startup image onie-image uninstall
–startup image onie-image update
using the Grub Menu that appears during startup (for more details, see “The
Grub Menu” on page 24)
using the BIOS Menu (for more details, see “The BIOS Menu” on page 25)
Note: For the NE2572, the CLI commands for booting in different ONIE modes
display an error if secure boot is not disabled on the switch. To disable secure boot,
see “ONIE Activation” on page 12.
The following pages describe the four ONIE modes and how the CLI commands
can be used to boot the switch in each mode.
Booting in ONIE Install Mode
This mode is used to install a NOS using ONIE. The ONIE install mode boots the
ONIE kernel and file-system and executes the ONIE discovery process. The
discovery process uses a number of different mechanisms to find a NOS installer
program.
Once a NOS installer is found, it is downloaded and executed. The installer loads
the Network OS on the switch, updates required ONIE environment variables, and
reboots the switch.
The switch now runs its newly installed Network OS and behaves like a regular
switch. The user can, at any point, reboot and run the ONIE installer again to
install another Network OS.
The Lenovo ONIE installer image, which installs the different Lenovo Network
Operating Systems, is called
onie-installer-x86_64-lenovo_ne2572-r0 ,
and it is available at the following link:
http://support.lenovo.com/

20 Lenovo ONIE Quick Start Guide for NE2572
To boot the switch in ONIE install mode on the next reload, use the following
command from the switch CLI:
Lenovo Cloud Network OS:
To check which in ONIE mode the switch is configured to boot, use the following
command
from the switch CLI :
Lenovo Cloud Network OS:
Booting in ONIE Uninstall Mode
This mode is used to uninstall a NOS using ONIE. The ONIE uninstall mode boots
the ONIE kernel and deletes the NOS image running on the switch. After the
uninstall is complete, the switch automatically reloads and boots into ONIE install
mode.
To boot the switch in ONIE uninstall mode on the next reload, use the following
command from the switch CLI:
Lenovo Cloud Network OS:
Note: The following warning is displayed after choosing ONIE uninstall mode.
You are prompted for confirmation:
Once you confirm, the switch boots in ONIE uninstall mode on the next reload. For
more details, see “Uninstalling the Lenovo Network OS” on page 29.
NE2572(config)# startup image onie-image install
NE2572(config)# startup image onie-image uninstall
WARNING: Booting ONIE in uninstall mode will completely uninstall the
operating system!
Only the ONIE image will be preserved.
Are you sure you want the next boot to uninstall the OS? (y/n)