Downloading

Downloading switch software

HP Switch periodically provides switch software updates through the HP Switch Networking website. For more information, see the support and warranty booklet shipped with the switch, or visitWWW.HP.Com/Networking/Support and click on Software updates.


	NOTE: This manual uses the terms switch software and software image to refer to the downloadable software files the switch uses to operate its networking features. Other terms sometimes include Operating System, or OS.

Switch software download rules

Switch software that you download via the menu interface always goes to primary flash.
After a software download, you must reboot the switch to implement the new software. Until a reboot occurs, the switch continues to run on the software it was using before the download.

NOTE: Downloading new switch software does not change the current switch configuration. The switch configuration is contained in separate files that can also be transferred. See Transferring switch configurations.

In most cases, if a power failure or other cause interrupts a flash image download, the switch reboots with the image previously stored in primary flash. In the unlikely event that the primary image is corrupted (which may occur if a download is interrupted by a power failure), the switch goes into boot ROM mode. In this case, use the boot ROM console to download a new image to primary flash.

Troubleshooting TFTP download failures

When using the menu interface, if a TFTP download fails, the Download OS (Operating System, or software) screen indicates the failure.

Example of message for download failure

Some of the causes of download failures include:

Incorrect or unreachable address specified for the TFTP Server parameter. This may include network problems.
Incorrect VLAN.
Incorrect name specified for the Remote File Name parameter, or the specified file cannot be found on the TFTP server. This can also occur if the TFTP server is a UNIX machine and the case (upper or lower) for the filename on the server does not match the case for the filename entered for the Remote File Name parameter in the Download OS (Operating System, or software) screen.
One or more of the switch's IP configuration parameters are incorrect.
For a UNIX TFTP server, the file permissions for the software file do not allow the file to be copied.
Another console session (through either a direct connection to a terminal device or through Telnet) was already running when you started the session in which the download was attempted.

To find more information on the cause of a download failure:

Examine the messages in the switch's Event Log by executing the show log tftp command from the CLI.


	NOTE: If an error occurs in which normal switch operation cannot be restored, the switch automatically reboots itself, and an appropriate message is displayed after the reboot.

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