HOST Console (Serial Console):
To get to the host console via serial / VGA use the following connections on front panel:
a) VGA + USB on the front panel.
B) Host serial console on the front panel (RJ-45 Serial)
HOST Console (via BMC / OOB network):
You can get to host console via BMC / OOB IP Address. By default BMC will DHCP for IP Address. For getting the BMC IP , simply look up BMC IP corresponding to BMC dedicated Mac (for Example : 00:1f:e2:fd:f4:32) or BMC shared Mac (for example: 00:1f:e2:fd:f4:33)
one you have the BMC IP, log into host console via following command
(Password: 0penBmc ):
ssh -p2200 root@<bmc-ip-address>
BMC / OOB Power-on : Power-off:
For powering the system on / off via BMC console, first ssh into BMC via following command (Password: 0penBmc ):
ssh root@<bmc-ip-address>
Once logged into BMC , use the following commands to:
Check the state of the host: obmcutil state
Power on the Host: obmcutil poweron
Power off the Host: obmcutil poweroff
SSH into host shell:
In order to ssh into the host , notice the host is going to default to DHCP for Broadcomm LOM Mac address(for example: 00:1f:e2:fd:f4:31) by default.
Look up your dhcp server for this mac to get Host IP
Log into host shell with below ssh command: (with password: passw0rd)
ssh nvidia@<host-ip>
How to install P100 GPUs into server:
Remove 4 screws around GPU metal base to release it from server tray. You will still have the PCIe cable connected
With the released metal base (PCIe cable still connected), Start sliding the P100 GPU until it “clicks” with PCIe connector.
Put 2 screws in the front of the metal base so that GPU sits on PCIe connector firmly
Put the metal base with P100 GPU on Barreleye G2 Tray. Allign the metal base so that screw holes align with server tray
Put 4 screws back to secure the metal base (with GPU) to the server tray
Errata on Barreleye G2:
a) 17.04 daily builds are unstable, they fail to boot intermittently
b) 17.04 Serial console has a bug where it flashes the login screen continuously making it impossible to login. When this happens , the host is still up and functioning properly. Just SSH instead using Host IP to execute your commands.
c) Gen3 link training fails on boot up occasionally and link falls to Gen2. If you want GPU to train Gen3 , reboot until both GPUs train as Gen3 (Check via lspci) . Once link trains to Gen3 speed there are no issues running tests. The issue is only with the training algorithm in processor, once it trains the speed you want, things should be stable.
How to Install 17.04
Here’s how to install Ubuntu 17.04 on PPC64LE server. In my case Barreleye G2, our openPOWER server is running OPAL as BIOS firmware with Petitboot bootloader:
Here are steps through install:
1) Login to Out of band management and get into host console
- Logging into host OOB console is important since Ubuntu 17.04 PPC64EL installer may not have ASPEED VGA / Graphics drivers. So you cannot see the install progress through the VGA console.
- You can connect a host serial console via RJ-45 Serial on front panel OR
- As indicated before you can login into host console via network
- (Password: 0penBmc ):
ssh -p2200 root@<bmc-ip-address>
- (Password: 0penBmc ):
2) Power on the server and get to Petitboot bootloader. Which should look like below:
2) Now type “n” to have add a new boot option.
We are netboot installing 17.04. So let’s grab and add the kernel and initrd url’s for Zesty (17.04 code name) respectively:
Kernel:
Initrd:
Your screen should look like this:
3) Press OK and you should return to Petitboot main screen. The boot option you just added should come up as “User Item 1”:
4) Select and enter “User Item 1” for starting the install. Following which you will go through standard Ubuntu Install process, that you should be familiar with.
Thanks I hope this post helps you Install not just Ubuntu 17.04 but any OS of your choice using Petitboot.
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