Dump a Log File After an Upgrade Failure
Use this procedure in the event of a failure when you are upgrading Unified Communications Manager or the Instant Messaging and Presence.
Before you begin
You need the 7-Zip utility to open the log files. Go to http://www.7-zip.org/download.html
Attach a new, empty file to the serial port. Edit the settings on the VM and attach the file name where you want the logs dumped.
Return to the VM console, and dump the logs into the serial port.
When the process is complete, click.
Select the datastore where you created the file.
Right-click and choose Browse Datastore and browse to the file that you created.
Right-click the file, select Download, and select a location on your PC to save the file.
Open the file using 7-Zip and check the file size:
If the file size is zero, complete the following steps:
If the size of the file is larger than 0, extract the files to your PC and then edit the settings on the virtual machine to remove the serial port.