when trying to change root password during setup of vcops 5.6 via its web interface, i could not change root's password.
i already tried root, admin, vmw@re & password but all cannot be used.
Are you referring to the application or OS password?
By default, the UI (application) username/password is admin/admin and the OS is root/vmware
You might find this useful as it contains a list of all the default credentials for virtual appliances within the vCloud Suite http://www.virtuallyghetto.com/2013/01/vcloud-suite-virtual-appliances.html
yees. root --> vmware