Recovering From Upgrade Errors; Downgrading From 2.0 To 1.4/1.4.1; Running The Predowngrade Script - Symbol WS5000 Series System Reference Manual

2.4 Recovering from Upgrade Errors

You cannot stop the upgrade to 2.0 after the upgrade starts and the switch reboots the first time. Also, if there
is an error in the preupgrade process, you cannot stop the script after you start running it. To recover from errors
in both cases, upgrade the DOM using the pxeboot method.

2.5 Downgrading from 2.0 to 1.4/1.4.1

You can downgrade a switch running WS5000 Series Switch 2.0 image to the switch running one of the
following versions:
• WS5000 Series Switch 1.4.0.0 (026R)
• WS5000 Series Switch 1.4.1.0 (014R)
• WS5000 Series Switch 1.4.1.1 (009R)
• WS5000 Series Switch 1.4.2.0 (005R)
• WS5000 Series Switch (Build 49)
Note Save the current system configuration and image files on the network before
downgrading because after you downgrade the switch, it uses the default
configuration settings and the downgraded image files.
After you downgrade from 2.0 to 1.4/1.4.1//WS5000 Series Switch, the switch obtains the following files:
• PreDowngrade.exe
• Downgrade.exe
• Downgrade<version>.image (where version is the version to which you downgrade from
2.0).

2.5.1 Running the PreDowngrade Script

To check that the system has sufficient memory for the downgrade, run the PreDowngrade script.
1. Copy the PreDowngrade script to the switch using copy ftp/tftp command:
copy ftp system -u <user_name>
2. Enter the PreDowngrade script filename, IP Address, and password at the system prompt.
The switch downloads the PreDowngrade script.
3. Log into the service mode CLI using service command from the cfg context (under system context).
4. Run the following service mode CLI command:
exec PreDowngrade.exe
This script determines whether the switch has the memory required for the downgrade. If the memory
is not sufficient, the script provides an option to free the memory needed. If it does not find the required
memory to be freed, it stops and displays an error message.
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Installing the System Image