Tag Archives: installation

CSCup36072 – CUCM/CUC Patch Upgrade Fails

Hit another horror defect today…  Patch upgrades apparently do not work as of 10.5.x and up!

 

Selection_041

 

The defect is described below:

 

 

The bug details are below – only workaround is to install with a bootable image!

 

Symptom:
When doing a fresh install of a Call Manager node, there is an option to use an upgrade patch option.

For CUCM 10.5, this approach cannot be used. Not even by using the bootable image for 10.0 and upgrade file for 10.5

Conditions:
Installing CUCM 10.5 with bootable image of a lower version and upgrade file of CUCM 10.5

Workaround:
None -> Use Bootable image for CUCM 10.5 itself

 

To resolve, the only “supported” method is to request a bootable image from TAC.

 

Terrible.  Terrible.  Terrible.

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Gathering CUOS Installation Information Prior to Upgrade

It may sound obvious, but prior to any upgrade – prepare for the eventuality of a system rebuild.  I hit an upgrade today that required both a Recovery CD partition swap and file system check on the original Active Partition to recover the system, after SELinux failures occurred after a switch-version.

For a rebuild, collect the following from CLI prior to upgrade:

  1. show network eth0 

  2. show status

  3. show version active

  4. utils ntp config

  5. show web-security

 

This will collect IP/Hostname, DNS, NTP/Timezone, firmware and certificate details(last one is critical!).

This is all negated if you have Answer Files set up to begin with and/or are using PCD.

 

HTH

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