an unknown error occurred while accessing the upgrade file

[Network-giiig]

Hello,

Trying to upload a device package (File: cmterm-devicepack12.5.1.17083-2.cop.sha512) to a CUCM v12.5 (running only the Pub server) using both Solarwinds and/or Titan SFTP, but I get the following "error encountered: an unknown error occurred while accessing the upgrade file"

I tried the following:

1- Changing the Sftp root directory with the only needed file 

2- Changing the OS Security mode to permissive

3- Rebooting the CUCM many times

Same error always !

Thanks 

[Nithin Eluvathingal]

The file name looks weird on the screenshot you shared.

[Network-giiig]

Thanks for the reply @Nithin Eluvathingal, what's wrong with the name, can you explain further please.

Thanks 

[lpersing]

Looking at the graphic the file name appears to be duplicated.

[ncarmichael]

Any luck? Currently running into the same and tried all the mentioned. I am just trying to install the signing key cop file which is a tiny file.

[Network-giiig]

@ncarmichael I just relized that the issue was about the SFTP software I was using (SolarWinds) I just changed to Titan FTP and everything went just fine, I hope I could help.

[ncarmichael]

Gotcha, I was also using solar winds and was able to use filezilla without the issue. I am not sure what changed with Solar Winds compatibility as it's been my go to for the past 5+ years. But also the issue seems inconsistent as my cluster was allowing solar winds SFTP when i installed the upgrade readiness cop. I'm sure there's some way to get it to work but until someone finds out, switching (S)FTP servers seems easiest.

[lpersing]

I use Filezilla for file transfers and have had very good results. Also had a junior engineer running into this issue and he had 2 copies of the same file in the same directory. So the server appended a (1) to the end of the file and CUCM was not recognizing it.

[Network-giiig]

Hi @lpersing , thanks for your reply.

I was using SolarWinds with the directory containing only one package file when I faced this issue. 

[mmihalyf]

Same issue here, I tried SolarWinds and the filenames are duplicated as shown above.

[Elliot Dierksen]

It can be fussy about the SFTP server. I have had odd instances where it wouldn't download a small COP file from an FTP server, but would use it via SFTP. Same file in the same directory on the same server. Strange, but that is life sometimes!

[fadilMbarek]

Use ULTAISO to add your COP files, then save as iso.
Uploded the iso on your Esxi and mount the iso on your VM.
Then connect to the cucm with ssh and launch the CLI: utils system upgrade initiate
And choose the Local DVD/CD option

[John Dow]

It works, but I solved this problem radically only by reinstalling CUCM with Data Export Upgrade by importing/exporting the configuration to sftp