Running on Dell PE 2650/2850
NSS Pools and Volumes

Using NWCONFIG, I've successfully patched 5 of 6 servers from NW 6.5 sp3 to 6.5 sp7.
I am having issues with the last server.
I select the option to backup files during the SP install, however at one point the upgrade indicates it cannot locate certain files.

SYS:\SYSTEM\NWUPDATE\APPEND could not be located.

It appears that the SYS volume is not longer mounted when this happens.

I upgrade WIKI indicates that I should issue the following command:

NSS /NoTransaction=ALL

As I indicated, the other servers had not problem completing the upgrade without the above command, so I'm stuck.

Any help would be appreciated.