[newbie] special script for isdn devices ?

[Quaylar]

hi all...

does anybody of u know whether theres a special script under mandrake  that 
creates the isdn devices ?
i experienced that my update to ver 7.1 deleted somehow my isdndevices.....
isdn4linux faq tells me that theres a script called "makedev.sh" that 
should create them.....
but i cant find this file in my isdn4k-utils package from mandrake.....nor 
does the package of redhat offer it...
maybe theres some redhat specific script ?

thx in advance

--dave