CUCM pre upgrade COP file issue CUCM 15 SU1 failing

[UC Guy]

Getting an error while installing Pre Upgrade COP file. Upgraded to version 15 SU1 already. Noticed some bugs so going to upgrade to SU2. Though might be a good idea to do a pre check, but I am getting an error while installing it:

tar (child): Error is not recoverable: exiting now

tar: Child returned status 2
tar: Error is not recoverable: exiting now
[25/04/29_10:34:05] locale_install.sh: ERROR: Untarring of /common/download//ciscocm.postUpgradeCheck-00045.k4.cop failed

[Elliot Dierksen]

If you are on V15 then the newer signing keys shouldn't be an issue. Is it possible you are out of disk space on the publisher?

[UC Guy]

cant take too much space for this COP file. 

[Elliot Dierksen]

What method are you using to transfer the file. I have had wonky problems when using FTP for really small COP files. Try using an SFTP server. I know that sounds whacky, but I have seen it more than a few times.

[Brad Magnani]

It's hard to say, I see it's making reference to post upgrade cop file, but you're saying you installed the pre upgrade cop.  The full install log would need to be analyzed.  Probably worth opening a TAC case to see if something abnormal is going on.   

[UC Guy]

yup, sorry, wrong logs. thanks for catching that. 

tar (child): Error is not recoverable: exiting now

tar: Child returned status 2
tar: Error is not recoverable: exiting now
[25/04/29_11:55:50] locale_install.sh: ERROR: Untarring of /common/download//ciscocm.preUpgradeCheck-00043.cop failed

[UC Guy · Accepted solution]

Issue resolved guys, thanks for all the suggestions. In the end, ended up being the way I used the back slash. I might need to change my name on this one, lol. 

Upgrade framework allows backslash when starting the upgrade

CSCwh78940

Symptom:

Upgrade fails to get the ISO/cop file if the source directory is set to \.

Conditions:

When starting an upgrade, if the source directory is set to \, the code proceeds to read and list the valid upgrade options. However, after this the upgrade will fail when it validates the \ path which is considered incorrect format.

Workaround:

Use / instead of \ to continue with the upgrade.