vgscan -- LVM driver/module not loaded? 在線等....急﹗﹗

IBMSAN

os: Redhat advanced server 2.1
lvm: lvm_1.0.6.tar.gz

$ cd /usr/src/linux-2.4
$ make menuconfig
   Multi-device support (RAID and LVM)  --->;
   <*>;  Logical volume manager (LVM) support
$ make dep
$ cd /softwar;tar -zxvf  lvm_1.0.6.tar.gz
$ ./configure --with-kernel_dir=/usr/src/linux-2.4
$ cd PATCHES/
$ make        # 產后patch
$ cd /usr/src/linux-2.4
$ patch -p1 < /software/LVM/1.0.6/PATCHES/lvm-1.0.6-2.4.9-e.25enterprise.patch
$ cd /software/LVM/1.0.6/
$ make;make install
$ modprobe lvm-mod
modprobe: Can't locate module lvm-mod
$ vgscan
vgscan -- LVM driver/module not loaded?
$ lsmod | grep lvm  # 沒有lvm模塊

請教高手﹐這是什么原因啊??