Sunday, October 28th 2007
A significant number of Mac owners upgrading to Leopard on Friday reported that after installing the new operating system, their machines locked up, showing only an interminable - and very Windows-like - "blue screen of death."
I'm upgrading my 20" iMac (Core Duo) at the moment and the installation 'completed', then the computer rebooted and it has been sitting on a plain blue screen for the past 30 minutes.explains thread posted on Apple forums. Many other Apple users complain from the same issue. Some reports speculate that the glitch might be related to a third-party program that installs a base-level framework that modifies OS X. Unfortunately, Apple was not available to comment on the story. Continue reading the full thread - Installation appears stuck on a plain blue screen.Source: ComputerWorld
There is no progress indicator of any sort but I can occasionally hear the hard drive seeking.