I assume by NSMRoot you mean the root directory of our lms installation. If so there is no NSMRoot/files/rme directory that exists. the only thing in files/ is an ipm directory.
This is telling me the devie is unable to copy the image to the TFTP server. For aecom-b1-sw, RME is trying to copy bootflash:cat4000-i9s-mz.122-25.EWA8.bin to tftp://184.108.40.206/rep_sw_9083916582808996013. Is this the correct IP address of your RME server? If you create a cat4000-i9s-mz.122-25.EWA8.bin file in the server's tftpboot directory, can you manually copy the image from the device to the server?
Yes that is the correct IP. I've created a cat4000-i9s-mz.122-25.EWA8.bin file in tftpboot. Can you explain what you mean by manually copy the image from the device?
If we're relying on TFTP as opposed to RCP or SCP there shouldn't be any switch/router configuration necessary correct?
Okay, make sure the file has 0666 permissions, then from the switch, run:
copy bootflash:cat4000-i9s-mz.122-25.EWA8.bin tftp://220.127.116.11/cat4000-i9s-mz.122-25.EWA8.bin
You are correct that nothing additional needs to be configured on the switch.