Hello.
How can I manipulate current installed kernel in debian 7.7 without install a new kernel?

Debian 3.2.65-1+deb7u1 x86_64

Thanks.

Hi,

I think that in order to get a useful answer you'll need explain what you mean by "manipulate".

Evo2.

Thanks.
I mean is change The Kernel configuration and add or remove features.

In order to play with the kernel configuration and add/remove features you need to get the kernel source package (preferably from the debian repositories), configure it, compile it and install it.

I haven't done it many times (and I'm not too keen on doing it unless it's needed for some reason), but if you're interested you can check these links:

http://debian-handbook.info/browse/s...mpilation.html
http://www.tecmint.com/kernel-compil...-debian-linux/
https://wiki.debian.org/HowToRebuild...nKernelPackage

as it was mentioned if you want to reconfigure your kernel you must rebuild and install it, you cannot do it without that. Some features installed as modules and you only need to add/remove those modules. But would be nice to explain what do you really want to achieve.

Thanks.
I know that I can download a New Kernel and Install but I want to modify current installed Kernel and add and remove some options in it. For example, Check SElinux and firewall configuration.

As said before, you need to configure and build the sources. Check my links above.

Hi,

you can rebuild the kernel you are currently running (build kernel from same source starting with the same configuration). So in the end you will have "the same kernel" but with differences due to the slightly different compile configuration. If this is now what you want, please explain why.

Evo2.

I downloaded Linux-source-3.2 via Synaptic in Debian. my uname is :

jason-long 3.2.0-4-amd64 #1 SMP Debian 3.2.65-1+deb7u1 x86_64 GNU/Linux

How can I Re-configure it?

You didn't check the links I posted, do you? It's all explained there.

Hi,
Odiseo77 already posted this link, but I repeat it here because I think it is probably the best single resource for what you seem to want to do.

http://debian-handbook.info/browse/s...mpilation.html

Evo2.

You can add and remove modules from kernel with the modprobe command.
Or if you want to blacklist a module, you can do it in the file /etc/modprobe.d/blacklist.conf

To disable SELinux or firewall, chaeck the man pages for SELinux and iptables, or for the service that you want to configure.

Thank you.
The problem is that I want to just add some option and keep current modules. I guess if I compiled Kernel very regular, all lost some Modules.
Any idea?

You can copy your current configuration to the kernel build directory and modify it. Check item number 8.10.3 on the first link I posted. Your current kernel configuration is stored inside /boot/config-{kernel-version}. So, when you copy this file into the kernel's build directory, you won't start from scratch, but you will use your current config, and you will be able to start configuring options, add/remove modules afterwards, based on your current config (when you execute make menuconfig).

Just out of curiosity, do you need to add custom/proprietary modules to the kernel, or just the modules that come with it?

Hi,
Yes, read the documentation that you've been given. See for example the very first step in section
"8.10.3. Configuring the Kernel" of http://debian-handbook.info/browse/s...mpilation.html

Evo2.