trap keypress on bootup, during initrd

[Toan Pham <tpham3783@gmail.com>]

Hi all,

I am developing an embedded OS, and at times, i would to boot the OS
different, lets say in a less secure mode when a user press or hold down,

CTRL + ESC, for example.

I am not sure what is the best way to do it.

please advise,

Thanks

Toan