Debugging a module upgrade In "Status report" I have message saying that some modules have database schema updates to install. However, when I run update.php nothing happens. I just get the standard error message that "Some of the pending updates cannot be applied because their dependencies were not met."

Reports -> log messages does not have anything relevant. 

How should I debug this?
It is possible that a module that you just updated now has a new module dependency. Go to your module listing page and see if any enabled modules now have a dependency listed as missing. Download the missing dependencies, enable and run update.php