• When you run the upgrade installer for vCenter Server 6.0, you see the error:

Error: Internal error occurs duing VMWARE vCenter Server Database pre-upgrade checks.
Resolution: send upgrade logs files to GSS for further assistance.

• In the CollectRequirements_com.vmware.vcdb_YYYY-MM-DD.log file, you see entries similar to:
  
  <YYYY-MM-DD>T<time> ERROR __main__ Upgrade Phase 'vcdb:CollectRequirements' failed. Exception: need more than 1 value to unpack</time>

Traceback (most recent call last):

File "Y:\PFiles\VMware\CIS\cis_upgrade_runner\payload\componentPhaseLauncher.py", line 379, in main

executionResult = systemExtension(exeContext)

File "Y:\PFiles\VMware\CIS\cis_upgrade_runner\libs\sdk\extensions.py", line 94, in __call__

result = self.extension(*args)

File "Y:\PFiles\VMware\CIS\cis_upgrade_runner\libs\sdk\extensions.py", line 110, in _func

return func(*args)

File "Y:\PFiles\VMware\CIS\cis_upgrade_runner\payload\component-scripts\vcdb\__init__.py", line 1612, in doCollectUpgradeRequirements

req = doWindowsCollectReq(context)

File "Y:\PFiles\VMware\CIS\cis_upgrade_runner\payload\component-scripts\vcdb\__init__.py", line 1120, in doWindowsCollectReq

if isEmbeddedWindows():

File "Y:\PFiles\VMware\CIS\cis_upgrade_runner\payload\component-scripts\vcdb\__init__.py", line 680, in isEmbeddedWindows

host, serviceName = serverName.split("\\")

ValueError: need more than 1 value to unpack

• Originally, embedded database with vCenter Server was deployed and then migrated to an external database or express database was reinstalled as a default instance.
• The DSN for vCenter Server database is presented as an IP, hostname, or FQDN with no named instance appended to it.

This issue occurs due to the split() function.When the embedded database is deployed with vCenter Server, it is created as a named instance such as HOSTNAME.DOMAIN.COM\SQLEXP_VIM. When you create a new SQL Server as a default instance and repoint vCenter Server to it, vCenter Server still assumes that it is using an embedded database and expects the name of the instance at the end of the SQL Server address.

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