I'm about to do an ACS 4.1 to 4.2 upgrade. The documentation on CCO says
"Note To upgrade to ACS 4.2, you must re-image the appliance. You do not need to use the upgrade package mechanism."
Does that mean the whole 4.1 system is blown away and 4.2 installed as opposed to applying a software patch ? Obviously this would need a backup and restore of the ACS data. Is anyone aware of any issues around this and how long the whole process takes ?
The customer has ordered CSACS4.2-WIN-MR-K9 to do the upgrade.