Logical Volume Manager Installation                                 02/10/1999


Installing this package will create various files in /sbin, /usr/man/man8
and an optional shared library in /lib.

You have to patch your kernel with the corresponding patch from the
subdirectory kernel-patches of this distribution.


1. Change to LVM/0.8/

2. If you don't have a kernel >= 2.2.10-ac2 (which already contains the
   LVM driver) or have a kernel with the wrong LVM driver version,
   choose the corresponding patch from <ftp://linux.msede.com/lvm/v0.8/>
   or one of the mirrors (replace asterixes below with those of the
   corresponding patch of your choice) and patch the kernel by

      gzip -dc lvm-*.*.*-LVM.gz | ( cd /usr/src/linux; patch -p1)

3. cd to /usr/src/linux and configure LVM and loadable module support
   if you like to load it as a module (see /usr/src/linux/README for
   instructions) by "make config/menuconfig/xconfig" (whatever you prefer)

4. Build a new kernel

5. cd back to the LVM root (LVM/0.8/), edit make.tmpl and change
   the TOP macro to the directory you untared LVM too

6. On SMP systems uncomment "MAKEFLAGS = -j2" in make.tmpl and change 2 too
   the number of your cpus.
   If you decide to link with the LVM archive library,
   change tools/Makefile corresponding (see comment "Link decision")

   Do a "make"

7. Do a "make install"

8. Omit this step if you choosed yes for LVM instead of module in "make config".

   Put an "insmod lvm" into your startup script OR extend /etc/conf.modules by

      alias block-major-58      lvm 
      alias char-major-109      lvm

   to enable modprobe to load the LVM module (enable kerneld/kmod).

9. Add a "vgscan" and a "vgchange -a y" to your startup files
   (/sbin/init.d/boot with SuSE for eg.) so that the actual volume
   group configuration is online after each reboot.

   Put a "vgchange -a n" into your shutdown script (/sbin/init.d/halt for eg.)
   after dismounting all filesystems.

10. Please keep in mind to have a lilo.conf, which is configured to boot
    the previous kernel in case of an emergency!

    Reboot your machine.

11. read the ascii file LVM-HOWTO to go ahead using the LVM
    and read the manuals.

    Please start with lvm(8).




If you like to remove the LVM software.

1. change directory to LVM/0.8

2. do a "make remove"

goto step 6 if you have a stock kernel already containing the LVM driver

3. save your /usr/src/linux/.config

4. delete and reinstall the kernel source tree

5. restore /usr/src/linux/.config


6. change directory to /usr/src/linux

goto step 8 if you have a stock kernel already containing the LVM driver

7. make oldconfig

continue with step 9

8. make (menu|x)config # deselect LVM here

8. rebuild the kernel and reboot

