On Wed, 19 Aug 2009 18:16:10 +0530 Vasanthra Devi S <vasanthradevi@gmail.com> wrote: > > first i have insttled debian 5.0(Lenny) . > it has three partitions (/,/boot and swap) > all the three are primary partition. > > after that i have installled rhel5(2.3 kernel). Why? If you could skip this last step, you should have no problems any more. Dirk.