wheres agetty in startup scripts?
 

my question is prety self explanitory, I just want to know where in
the startup scripts "agetty" is located, cause I would like to switch
to minigetty for my logon needs.

mostly I want to switch cause minigetty allows for autologin (so I
can automatically login with an unprivelaged user and start xwindows)

/etc/inittab

what invokes inittab?

it is a type of config file for init ... the big guy, PID 1, kicked off by the kernel itself, I believe.

When the kernel finishes loading the first thing it does is run init, which first processes inittab. Then it proceeds to execute the scripts under /etc/rc.d/ according to the runlevel specified in inittab. Everything that happens afterward is started there.
You can edit inittab with vi or other text editor.