I am tasked with upgrading the IOS of over 500 devices and would like to LMS to do this. I have a test switch that I've tried this on several times and it keeps failing. Because of the nature of the business, we are only allowed to use secure protocols so I am trying to do this using SCP. We are not allowed to use TELNET or TFTP at all. I have successfully been able to import images from switches so I don't understand why it isn't working in reverse. Here is an example of one of my attempts:
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JOB ID - 2211 SUMMARY
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Device Name : TEST_Switch
Software upgrade result - Failed
Total number of devices scheduled for upgrade : 1
Number of devices upgraded : 0
Number of devices failed : 1
Total time taken for Job - 3 Minutes 28 Seconds
Status of Job - FAILED
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Starting Job: ID - 2211
Job Started At : Wed Oct 23 09:25:52 MDT 2013
Job running on : CiscoPrimeLMSServer
Upgrade Mode : Parallel
Reboot Mode : Parallel
Protocol Order for Image Transfer : SCP
Protocol Order for Config-operations : SSH,HTTPS,SCP
Total number of device(s) to be processed : 1
Processing Device : TEST_Switch
Start Time : Wed Oct 23 09:27:10 MDT 2013
Device is locked for exclusive access.
The supported protocols for image transfer are: SCP
Connecting to the device using TELNET...
Couldn't connect using TELNET...
Couldn't connect to the device
Cause: SWIM5001: Cannot connect to the device xxx.xxx.79.87 using TELNET.
Skipping the software upgrade on this device.
Image Copy Operation Failed
Device is unlocked.
Device Upgrade Result : Failed
End Time:Wed Oct 23 09:27:41 MDT 2013
Job Ended At : Wed Oct 23 09:29:20 MDT 2013
Is it necessary for TELNET to be used? I thought SSH was an option as well. I've also attached the log file. I've replaced real identifying information (server name and IP address for security purposes) Please help!