Permission denied during rpm installation

[Deepak Shrestha]

Hi I tried to upgrade the kernel for ntfs support but when I issued
the rpm command it showed some error message but instllation went to
100%. How serious is this? What is the problem behind this? I have
seen also similar message when I tried to install package through yum.

Error is as follows:
=====================
# rpm -Uvh kernel-module-ntfs-2.6.17-1.2157_FC5-2.1.27-0.rr.10.5.i686.rpm
Preparing...                ########################################### [100%]
   1:kernel-module-ntfs-2.6.########################################### [100%]
FATAL: Could not rename
/lib/modules/2.6.17-1.2157_FC5/modules.dep.temp into
/lib/modules/2.6.17-1.2157_FC5/modules.dep: Permission denied
====================

this FC5 installation

Thanks!