installing linux after freebsd (multi-boot)

[अनुज]

Hello ,
I have freebsd6.2 installed with Fedora core 7 and rhe4.
I am installing rhel5 , when linux installation process starts I get an
error of /dev/hdc1 busy , can not report to kernel about partition
layout. In the past I installed linux then FreeBSD.
Is there some method that rhel5 installation can skip /dev/hdc1
(freebsd slice) ? saving my freebsd installation
regards
Anuj Singh.