kernel on installation dvd of open suse 10.2

[undefined]

i copied the kernel and initrd from installation DVD of open suse 10.2
to my boot folder
#cp openSUSE-10.2-GM-DVD-i386.iso/boot/i386/loader/linux /boot/
#cp openSUSE-10.2-GM-DVD-i386.iso/boot/i386/loader/initrd /boot/

and copied the ISO image of Suse DVD on a partition on hard disk that
was completely free

now I booted from kernel image that was copied by the above commands
then I got the graphical installer screen asking me to start
installation
by this method I have been able to install Suse in a friends comp
without using CDROM or DVD ROM

what I want to know is if instead of the kernel image and initrd image
that are on the installation DVD if I put up the kernel image and
initrd that already are existing on a system
i.e.
vmlinuz-2.6.18.2-34-default
and initrd-2.6.18.2-34-default

the system does not begin installation

infact it boots into the new kernel on the system.

My question is what is the difference between the kernel images that
are on the installation media inside openSUSE-10.2-GM-DVD-i386.iso/
boot/i386/loader/
(name linux and initrd )

and the kernel images that are on the system after a fresh
installation has taken place inside /boot/ folder
which was able to boot the system instead of starting installation

[undefined]

Ok so I got what was actually I was searching for I am posting this as
a reference if some one by mistake read this and is willing to do same
as I did with some other distribution after reading this link go here
http://www.linuxquestions.org/questi...=1#post2935301

you copy the initrd from the distribution DVD and the one on your boot
folder inside the system
and do as root
gzip -dc initrd | cpio -id
you will see a lot of directories and some executables
do this for both the initrd's the one on boot folder and the one in
installation media
the difference comes in
modules which they load
I am not sure about the udev or devfs which the initrd on installation
cd or dvd does .
Actually the difference comes in the init script which you see for
both the initrd's the init extracted from the initrd of installation
cd or dvd
has a linuxrc script which starts installaion by calling the installer
which in my case was yast and in case of fedora is anaconda and debian
has its own.
here is one more link
http://www.mjmwired.net/kernel/Documentation/filesystems/ramfs-rootfs-initramfs.txt#252
I have tried to explain what ever possible now this should help you.