Comment 3 for bug 453876

I have the same issue - though my Grub loading text lasts for approx 25s

I removed the set quiet and quiet splash - nothing appears to be any different in any of the log files.

That said I am not really sure which log file would show anything prior to the menu list being there and me being able to choose a kernel to boot from.

As with the OP - once the menu list has appered and a kernel booted the boot doesn't appear to take any longer than normal.