I'm a little confused over driver signing. Once the system is
booted do the
drivers need to be signed for a device to
work?
One bit that I have grasped from this massive
spec is that the UEFI scheme is entirely modular, and includes the ability to
load "pre-boot-environment" driver files for particular devices, sort of like
the "initrd" concept when booting Linux. If, for example, a hardware vendor
comes out with a new device (call it a disk) that is not supported by the
resident UEFI code, they can also provide a driver file to work with UEFI that
will allow the device to be accessed and used during boot (which would let the
machine boot from that "disk"). I believe that's the "driver signing" that
they're talking about.
Still reading...
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