how to: install multiple OSes beside eCS

I outgoing frm an empty harddisk

1. boot from eCS installation disk
2. when the installer is up and running: hit Shift + F3
   this brings up an ordinary commanline window
3. s:> LVM
   hit Enter: create IBM bootmanager
   hit F5 to switch to physical view
   this step is needed to get each and any partiton created

You'll have to create the partitons in this order:

    Partiton   
type     Size      comment
Primary  any       Windows boot
Primary  1023      will be linux /boot
extended any       Windows data/programs (optional)
                   repeat until you have any partition
                   windows should use
extended 2028      eCS system (recommended for eCS 2.0)
extended any       eCS data/progs
                   repeat until all eCS partitons are created
extended 20GB      reserved for Linux /
                   you can spend a bit less or much more
                   depending on the room you likes to spend
                   room for using linux
extended 2xRAM     reserved for linux /swap

Note the name and size you've spend for the partitons. You'll need 
that for the next step

   press F5 to switch to logical view

Preserve the following comment in mind:

When creating LVM type volumes you should press F& every time you have
finished creating of a volume because LVM will concatenate multiple 
partitions to a single volume until you tells it that a volujme 
contains all partitons it should.

Create volumes from existent partition:

Partiton        volume type           drive  Comment
                                      letter
Windows Boot    compatible, bootable  C:     required by Win.         
 .
/boot           compatible, bootable  x:     GRUB ends here
                                             this assigns the volume
                                             to BM; hide from eCS 
                                             thereafter allowed!
Win Data        compatible, not b.    D:     1. extended
                                             avoids convision of win.
                                             only needed when access
                                             from eCS is needed
eCS System      compatible, boot*     ?:     
eCS data        LVM, not boot.        ?:
/               compatible, not boot  y:     possible LVM not boot
                                             only needed when you 
                                             will try to access it
                                             from eCS

* starting with eCS 2.0 you may use 'LVM, bootable' instead to create 
an bootable LVM volume instead.

?: feel free to assign any drive letter from the list of drive letters
available. LVM allows you to assign drive letters in any order you 
likes.

Press F3 to end LVM, quit 'WITH save' to get the configuration written
to disk. End 'without save' will never change a single bit on disk! so
any work will lost.

   S:> format <systemdrive>: /FS:HPFS /L
   beginning with eCS 2.0 you can use 
   S:> format <systemdrive>: /FS:JFS /L
   but only when you have created that volume with volume type LVM, 
bootable

   You may now format the other eCS partitons too. The option /L is
   recommended. Because in case of a real hard crash the chance of
   a recover from crash is significantly higher when the partiton is
   long formatted as without /L. Missing /L here may result in loosing
   any data on a volume because chkdsk may not be able to reconstruct
   the LVM bookkeeping then.

   Formatting a big volume can cost a lot of hours! So initiate
   it immediately before you goes at home or in bed is a good idea.
  

You may now continue installing eCS until the systems tells you that 
the installation is complete.

4. Boot from windows installation CD

   be sure NOT to automatic install! as this will destroy any any
   partitoning you'll done.

   be sure to select the partiton you've partitoned for windows!

5. After windows installation is done you'll insert the linux boot CD

   Follow the expert installation way! You'll have to set the partiton
types
   for the linux partitons manually!

   Be sure to set the partiton you've reserved for /boot as location 
for GRUB.
   When done right, linux will install GRUB and the kernel there and 
left the
   boot sector untouched! So BM will show you your linux as one of the
systems
   it should boot. BM will then boot GRUB and GRUB will boot linux.

After linux install is finished:

Boot from eCS CD, fire up LVM from it as described above and activate 
BM again.
Be sure to end LVM "with save". Now, every time you boots up the 
mashine you can select which OS should get booted.

You may or may not install another eCS beside the one as maintenence 
system. In that case you have to be carefully never to touch os2*.ini 
from the other system because this will destroy the inis!



-- 
Tschau/Bye
Herbert

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