If your site is upgrading on UNIX and uses auto-mounted folders for vaults, set the following property:

This property should be set to the prefix that is used for auto-mounted folders. The default value of this property is com.ptc.windchill.upgrade.automountPatterns=/net. It is a multi-value property that is comma-delimited. For example, com.ptc.windchill.upgrade.automountPatterns=/net,/mnt. The Windchill Upgrade Manager will check this property in the Vaults and File Servers step.