HTTP Error 500.19 - Internal Server Error" on upgrade status and central administration page if SharePoint 2007 web site is renamed within IIS before inplace upgrade to SharePoint 2010
This issue occurs beacuse manually changing IIS name of SharePoint web application is not supported.
Follow the steps below to resolve it:
- Rename it back to its original name from inetmgr (eg: rename it to "SharePointCentral Administration V3" from "SharePointCentral Administration V3 old").
- Resume or retrigger upgrade from \14\bin "psconfig -cmd upgrade -inplace V2V -passphrase ****** -wait".