Hi all,
I have tested upgrading CUCM from 9.1.2 to 10.5 in my lab. As i read before, we need some cop files to upload to CUCM before upgrade procedure.
Cisco named this upgrade as <Refresh Upgrade> and during this process, RHEL version will also upgrade with CUCM version.
On my test, i dont upload any cop file before upgrade. Just uprade to 10.5 version.
Before upgrade my RHEL version was 5(32 bit) and after upgrade it is 6(64 bit).
After upgrade, everything seems ok but upgrade took lots of time, like 4 hours.
During upgrade there is no connection to CUCM and i saw blue screen :)
What is your opinion? Will this method work on customer enviroment?
Do you test this procedure before?
Best Regards,
Mesut
