Unity Upgrade Failure From 10.5 to 11.5

[mclason01]

Hello,

I have a publisher/subscriber nodes and am attempting to upgrade. 

I applied the following COP to the publisher:

https://software.cisco.com/download/release.html?mdfid=286286362&softwareid=282204704&release=COP-Files&flowid=77775

And successfully installed UCSInstall_UCOS_11.5.1.11900-26.sgn to the publisher but did not switch versions. 

I then tried to install UCSInstall_UCOS_11.5.1.11900-26.sgn to the subscriber, but the installation failed with unknown error. When I open the install log, I see a lot of the following message at the time of the failure:

01/24/2017 12:48:41 component_install|(CAPTURE) spawn sftp sftpuser@REMOVED|<LVL::Debug>
01/24/2017 12:48:41 component_install|(CAPTURE) Connecting to REMOVED...|<LVL::Debug>
01/24/2017 12:48:41 component_install|(CAPTURE) sftpuser@REMOVED's password: Permission denied, please try again.|<LVL::Debug>
01/24/2017 12:48:41 component_install|(CAPTURE) Permission denied, please try again.|<LVL::Debug>
01/24/2017 12:48:41 component_install|(CAPTURE) Permission denied (publickey,gssapi-keyex,gssapi-with-mic,password).|<LVL::Debug>
01/24/2017 12:48:41 component_install|(CAPTURE) Couldn't read packet: Connection reset by peer|<LVL::Debug>
01/24/2017 12:48:41 component_install|(CAPTURE) initial args in: sftpuser@REMOVED|<LVL::Debug>
01/24/2017 12:48:41 component_install|(CAPTURE) prompt: 0|<LVL::Debug>
01/24/2017 12:48:41 component_install|(CAPTURE) verify: 0|<LVL::Debug>
01/24/2017 12:48:41 component_install|(CAPTURE) fingerprint: |<LVL::Debug>
01/24/2017 12:48:41 component_install|(CAPTURE) param in: sftpuser@REMOVED|<LVL::Debug>

The publisher's name has been replaced with REMOVED in this post for securty purposes

I have attached the install log 

Please help!!

Thanks

[Anoop Krishnan]

You could try a shutdown and then check if the switching versions is possible. Or else please try the upgrading procedure with the help of the document attached.

[mclason01]

I have rebooted the publisher and subscriber but that did not help. I believe I am not supposed to do a switch version on the publisher until the installation on the subscriber has finished? 

The problem I am experiencing is installing the upgrade on the subscriber.