IBM 486DX2-50, switch the hd for rh-7.1

I have done this before, install the redhat 7.1 in a bigger ram configuration, after that I remove the extra memory, and the machine still work. The only thing that you need to take care is you need the 386 glibc not the 586 glibc. I though the HD was seal on the IBM machine, actuallay is not, is just tightly screw like seal there. It take me a lot of effort to unscrew it. Come on! I am not a hardware guy!