I am trying to upgrade NAC Profiler Lite by following the following Cisco Doc
In section Upgrading 2.1.8 Cisco NAC Profiler Server and Profiler Lite Standalone Systems to 3.1.0.
I'm trying to run the database migration utility. Utility is showing in the home/beacon directory. When I run the command specified in the Doc to untar the utility package (tar xvfz DB-utility_218to31x.tgz) I receive the followinig errors:
gzip: stdin: not in gzip format
tar: Child returned status 1
tar: Error exit delayed from previous errors