poap.py script execution fails during POAP without any detail

[jean-christophe-manciot]

last poap.py version Jun 9 11:21
Target node: NX-OSv 9k 7.0.3.I6.1

Following the official guidelines, I made the following modifications to the script:

options = {
   "username": "tftp",
   "password": "tftp",
   "hostname": "172.21.0.1",
   "transfer_protocol": "tftp",
   "mode": "raw",
   "config_path": "NX-OSv-9k/7.0.3.16.1"
   "target_image_path": "NX-OSv-9k/7.0.3.16.1"
   "target_system_image": "nxos.7.0.3.I6.1.bin",
   "user_app_path": "NX-OSv-9k/7.0.3.16.1"
   "source_config_file": "poap.cfg"
}

To make sure they are not dismissed, I also performed the following modifications:

I also recomputed the checksum.
During the POAP phase, the NX-OSv 9k is able to get all its DHCP parameters, downloads the poap.py and says that an error occurred during execution without further explanation.
Some details would be very helpful.

[justme-justus]

TFTP is broken with the current version. TFTP does not need username and password. But the script will attempt to download the files via "copy tftp://username:password@server/file local_file". I tested that constellation in lab today. Will post a fix.

[justme-justus]

*** poap_original.py	2018-07-03 15:32:41.240670676 +0200
--- poap_nexus_script.py	2018-07-03 16:08:31.395067399 +0200
***************
*** 834,841 ****
          else:
              # Add the destination path
              copy_cmd = "terminal dont-ask ; terminal password %s ; " % password
!             copy_cmd += "copy %s://%s@%s%s %s vrf %s" % (
!                 protocol, user, host, source, copy_tmp, vrf)
              poap_log("Command is : %s" % copy_cmd)
              try:
                  cli(copy_cmd)
--- 837,856 ----
          else:
              # Add the destination path
              copy_cmd = "terminal dont-ask ; terminal password %s ; " % password
!             # 07/03/2018: fix for TFTP by bestjejust@github:
!             # do not post credentials if using TFTP
!             # global set
!             # "target_image_path": "/",
!             # "config_path": "/",
!             # "user_app_path": "/",
!             # if your files are in root directory
! 
!             if options["transfer_protocol"] == "tftp":
!                copy_cmd += "copy %s://%s%s %s vrf %s" % (
!                    protocol, host, source, copy_tmp, vrf)
!             else:
!                copy_cmd += "copy %s://%s@%s%s %s vrf %s" % (
!                    protocol, user, host, source, copy_tmp, vrf)
              poap_log("Command is : %s" % copy_cmd)
              try:
                  cli(copy_cmd)