boot hangs just after raindrop

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http://forums.fedoraforum.org – I am running f19 x86_64 and run yum update on a daily basis Not sure exactly when this began but when booting from a poweroff state the boot hangs right after the raindrop is filled up and the screen displays a large letter f If I press escape some messages scroll and the last message is reached target graphical interface At that point I switch to another virtual terminal and reboot which usually works. (HowTos)