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Hello Mandriva Users, |
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kernel-headers contains the headers for the source code of Linux kernel. |
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All source code necessary to compile a new kernel is included in two |
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packages kernel-headers, and kernel-source. You will need to install |
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both kernel-headers (needed for general Linux compilation), and |
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kernel-source in order to compile a new kernel. |
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The kernel is the central process of your Linux machine, the mediator |
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between the hardware and your programs. It is responsible for memory |
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allocations, process managing, device access... |
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Although modern kernels are very flexible thanks to dynamic modules, you |
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may need to compile your own kernel for various reasons: your found a |
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new module which need a more recent kernel, you need a feature of a new |
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kernel, etc... |
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Anyway, all the new kernels may be found in the cooker distrib (look for |
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mirrors at http://qa.mandriva.com/twiki/bin/view/Main/CookerMirrors). |
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Here is a short sum-up of what you can find in the Kernel-HOWTO. Consult |
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it in case of a problem or if the shortcut here provided does not meet |
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your needs. You should also consult the README of kernel-sources. |
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1. Configure your new kernel |
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You should never build a kernel as root, so as a normal user: |
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Copy the source in /usr/src/linux/ to ~/kernel/ |
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Change to ~/kernel/ and clean-up previous compilations, by issuing |
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"make mrproper", |
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In console mode, run "make menuconfig", |
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Under X11, run "make xconfig". |
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Then configure all sections of your kernel making each feature you need |
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available constantly or as a module. Note that you should compile most |
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features as a module, as it consume less memory, taking into account |
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that some of them cannot be modules as you may need them at boot time, |
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before dynamic modules be loaded... |
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2. Compile it |
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Just issue "make" to create a compressed kernel image and the modules you |
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configured. |
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3. install your new kernel |
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Now you need root privilegies, so: |
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Issue "su" and enter root password. |
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Issue "make modules_install" |
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This will copy your modules and needed files to /lib/modules/ |
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Issue "make install" |
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This will copy your new kernel and system.map to boot dir (/boot/) with |
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correct names including version, and change respective links. |
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It finally runs lilo to take into account your new kernel. |
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4. Modify Lilo to allow your booting on old kernel |
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* This step is optional, although recommended * |
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See lilo.conf man page. |
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Your are encouraged during this step to create a new section in your |
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lilo.conf file, in order to enable you to boot on your both kernels, the |
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old and the new one. |
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You need to run lilo then to take your changes into account. |
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You may also use linuxconf to do all that with a nice GUI. |
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5. Reboot your machine... |
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And pray. |
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Anyway if something goes wrong, you just need to reboot and choose your |
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old kernel with lilo. |
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Enjoy! |
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======================================================================== |
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(c) 1999-2006 Mandriva, Camille Bégnis <camille@mandriva.com> |
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(c) 2006 Thomas Backlund <tmb@mandriva.org> |