Upgrade the Switch Firmware (CLI)

Note - If you are going to downgrade the firmware to a version earlier than 2.0, you must remove user partitions and depopulate the Subnet Manager nodes list. See Switch Administration, removing partitions for firmware downgrade.

Open an SSH session as user root and connect to the management controller by specifying the controller’s host name.
For example:
```
% ssh -l root switch_name
root@switch_name’s password: password
#
```
where switch_name is the host name of the management controller. Initially, the password is changeme.

If the Subnet Manager is running on the management controller, disable it with the disablesm command.

# disablesm
Stopping partitiond daemon.                                [  OK  ]
Stopping IB Subnet Manager..                               [  OK  ]
#

Verify that there is at least 80 MB available in the / filesystem.
```
# df -h /
Filesystem            Size  Used Avail Use% Mounted on
/dev/hda2             471M  276M  172M  62% /
#
```
In this example, there are 172 MB available. If not enough space is available, you must delete or move files from the / filesystem.
Verify that there is at least 120 MB available in the /tmp directory.
```
# df -h /tmp
Filesystem            Size  Used Avail Use% Mounted on
tmpfs                 250M  240K 249M 1% /tmp
#
```
In this example, there are 249 MB available. If not enough space is available, you must delete files from the /tmp directory.
Verify that there is at least 120 MB free memory available.
```
# free -m
                 total       used       free     shared    buffers     cached
Mem:           498        104        393          0         12         47
-/+ buffers/cache:         45        453
Swap:            0          0          0
#
```
In the -/+ buffers/cache: row of the free column, there should be at least 120 MB free memory. In this example, there are 453 MB available. If not enough memory is available, you must exit non-essential applications that are running.

Start the Oracle ILOM shell.

# spsh
Oracle(R) Integrated Lights Out Manager
Version ILOM 3.0 r47111
Copyright (c) 2010, Oracle and/or its affiliates. All rights reserved.
->

You are now in the Oracle ILOM shell.

You can use the exit command to return to the Linux shell.

Begin the upgrade process.
```
-> load -source URI/pkgname
```
where:
- URI is the uniform resource indicator for the host where the switch firmware package is located. The FTP and HTTP protocols are supported.
- pkgname is the name of the firmware package in the transfer directory.
For example, using the FTP protocol:
```
-> load -source ftp://root:changeme@123.45.67.99//tmp/sundcs_36p_repository_2.0.5_1.pkg
Downloading firmware image. This will take a few minutes.
```
Note - If you are upgrading from firmware version 2.0.X, you can use the -force option to disable version number checking, and force the upgrade.

The firmware is downloaded. The upgrade begins. A caution is displayed and you are asked to commit to the upgrade.
```
NOTE: Firmware upgrade will upgrade firmware on SUN DCS 36p firmware.
         ILOM will enter a special mode to load new firmware. No other tasks 
         should be performed in ILOM until the firmware upgrade is complete. 
 
Are you sure you want to load the specified file (y/n)?
```

Answer y to the prompt to commit to the upgrade.

The upgrade begins.

Setting up environment for firmware upgrade. This will take few minutes.
Starting SUN DCS 36p FW update
 
==========================
Performing operation: I4 A
==========================
I4 fw upgrade from 7.3.0(INI:4) to 7.4.0(INI:4):
Upgrade started...
Upgrade completed.
INFO: I4 fw upgrade from 7.3.0(INI:4) to 7.4.0(INI:4) succeeded
 
===========================
Summary of Firmware update 
===========================
I4 status :  FW UPDATE - SUCCESS
I4 update succeeded on :  A
I4 already up-to-date on :  none
I4 update failed on :  none
 
==========================================
Performing operation: SUN DCS 36p firmware update
==========================================
SUN DCS 36p fw upgrade from 1.3.3-1 to 2.0.5-1:
Upgrade started...
Upgrade completed.
INFO: SUN DCS 36p fw upgrade from 1.3.3-1 to 2.0.5-1 succeeded
Firmware update is complete.
->

Exit the Oracle ILOM CLI shell.
```
-> exit
exit
#
```
Reboot the switch to enable the new firmware.
See Switch Administration, restarting the entire switch.

Note - The restart process takes between 4 to 5 minutes to complete. The Oracle ILOM stack requires at least 2 minutes to become operational after a reboot.

If the Subnet Manager was previously disabled, log in as the root user and enable the Subnet Manager.

% ssh -l root switch_name
root@switch_name’s password: password
# enablesm
Starting IB Subnet Manager.                                [  OK  ]
Starting partitiond daemon.                                [  OK  ]
#

Verify the firmware version.

# version
SUN DCS 36p version: 2.0.5-1
Build time: Nov 25 2011 12:20:22
SP board info:
Manufacturing Date: 2009.02.19
Serial Number: "NCD2S0133"
Hardware Revision: 0x0100
Firmware Revision: 0x0102
BIOS version: NOW1R112 
BIOS date: 04/24/2009
#

In the first line of the output is SUN DCS 36p version x.y.z-w, where x.y.z-w is the version of the firmware upgraded (or downgraded). For example, 2.0.5-1.

Verify the firmware integrity.
See Verify Firmware Integrity (CLI).

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Upgrade the Switch Firmware (CLI)

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