Initial Boot Problems
Booting kernel on stock Fedora 9 x64 DVD requires the kernel option : ‘intel_iommu=off’ to be appended to the kernel boot line.
Updated kernels (after, say, 2.2.26), no longer need this extra parameter.
USB Keyboard
Unless ‘Legacy USB’ is set in the BIOS (which it is by default), the USB keyboard can’t be used to change [...]