Debian installer shortcuts?

[Samuel Thibault <sthibault@debian.org>]

Hello,

I'm having a look at the debian installer documentation atm, and I'd
like to precisely document the various keypresses needed to enable the
accessibility parts of the debian installer. I have no problem with
finding out information on x86 as I have a lot of x86 boxes.  I however
do not have a powerpc, an itanium or an alpha box (these are the archs
where brltty is enabled).  Can anybody get me details?  The list of what
I'd need is the keypresses to

- just boot (<enter> on x86),
- get to appending boot parameters (<tab>, type, <enter> on x86)

Samuel