How to Install another Veritas Demo License even though u have already two demo license extensions

Encountered this quite some time back, thought it would be nice to share this useful information.

i need to install an extension to the Veritas demo license even though i had already 2 Veritas demo licenses extensions.

While trying to install a Veritas demo license, encountered this error "ERROR V-21-1-19 Duplicate License key detected".

[root@myserver ~]# vxlicinst
Symantec License Manager vxlicinst utility version 3.02.16.0
Copyright (C) 1996-2006 Symantec Corporation. All rights reserved.
Enter your license key : XXXX-WDBK-ASG8-ST7O-ZZZZ-OCZW-YYY
vxlicinst ERROR V-21-1-19 Duplicate License key detected

Steps to resolve this.

Backup the current license
# cd /etc/vx/licenses/lic
# tar cfp vxlic.tar *.vxlic

Install the new license using vxlincinst again.

Do remember to verify that the demo license has been extended.

# vxlicrep

Restart VCS to verify that it can be started up using the new demo license.