Question : LVM install

On linux 2.1 AS, installed LVM pkg. Now I am trying to use it but I am getting following error:

[root@tc01a root]# rpm -q lvm
lvm-1.0.6-1
[root@tc01a root]# vgscan
vgscan -- LVM driver/module not loaded?


What am I missing here? What should I do to make LVM work?

Thank You in advance,

Sreeram

Answer : LVM install

> the procedure to re-compile kernel to load LVM within the kernel please
1. Check the kernel-source package installation:
# rpm -q kernel-source
If not installed, then install it from the CD (Kernel development) or download from RHN network.

2. After kernel-source installed, login as root in X-window:
# cd /usr/src/linux-2.4
# make mrproper
# make xconfig
Go to "File systems" and search for all "LVM" related and check "y".
Save and Exit.
# make dep
# make clean
# make bzImage
# make modules
# make modules_install
# depend -a
# mv /usr/src/linux-2.4/Systme.map /boot/System.map-2.4.9-e.49custom  <== version may vary
# mv /usr/src/linux-2.4/arch/i386/boot/bzImage /boot/vmlinuz-2.4.9-e.49custom  <== version may vary

3. Edit /etc/grub.conf, and add (the version and partition may vary)
--------------
title RHEL AS 2.1custom (2.4.9-e.49) <== version may vary
 root (hd0,0) <== partition may vary
 kernel /vmlinuz-2.4.9-e.49custom ro root=/dev/hda4 <== version/partition may vary
-------------

If you never compile kernel before, then you'd better read the following documount
carefully before you go for it:
http://www.redhat.com/docs/manuals/linux/RHL-7.2-Manual/custom-guide/custom-kernel.html

Still, NOT recommend use build-in LVM with RHEL 2.1 since kernel 2.4.9 is not well support
LVM (That's why LVM is not enabled in kernel by default). You will end up data lost.

Regards,

Wesly