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| == Conceitos ==
| | If the ping is successful (you see <code>64 bytes</code> messages as above,) then your Network is set up. Hit Control-C to stop the ping. |
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| TBC
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| == Recompilando os códigos fonte do kernel Gentoo a partir do SystemRescue CD chroot ==
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| Um segundo caso que muitos usuários de Funtoo users encararão é recompilar seu próprio kernel quando instalar um um Funtoo novinho a partir de um stage 3 archive (o cenário mais comum é inicializar a maquina com o SystemRescue CD).
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| {{Fancynote| Se quiser utilizar o System rescue CD sources fornecido pelo Funtoo {{Package|sys-kernel/sysrescue-std-sources}}, a filosofia permanece exatamente a mesma.}}
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| == First step emerging the required packages ==
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| The first step is to emerge:
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| # The Gentoo kernel sources: {{Package|sys-kernel/gentoo-sources}}
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| # Genkernel itself: {{Package|sys-kernel/genkernel}}
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| This is achieved by running the following:
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| <console>
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| ###i## emerge sys-kernel/gentoo-sources sys-kernel/genkernel
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| </console>
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| Once the Gentoo kernel sources are deployed, you should find a directory named '''linux-''version''-gentoo''' (e.g. linux-2.6.39-gentoo) under ''<code>/usr/src</code>''. Update the ''<code>linux</code>'' symlink to point to this directory:
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| <console>
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| ###i## cd /usr/src
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| ###i## rm linux
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| ###i## ln -s linux-2.6.39-gentoo linux
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| </console>
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| == Second step: Grabbing and tweaking a configuration file ==
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| How to start your kernel configuration? Simply by using the same configuration template the running System Rescue CD kernel had been built with! Before chrooting in your Funtoo instance, you did something like:
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| <console>
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| ###i## mount -o bind /proc /mnt/gentoo/proc
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| </console>
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| Or:
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| <console>
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| ###i## mount -t proc none /mnt/gentoo/proc
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| </console>
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| In your chroot environment (or from a System Rescue CD virtual terminal) if you look what ''<code>/proc</code>'' contains you will notice a file named ''<code>config.gz</code>'':
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| <console>
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| ###i## ls /proc
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| ...
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| dr-xr-xr-x 7 root root 0 May 23 03:13 952
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| dr-xr-xr-x 7 root root 0 May 23 03:13 953
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| dr-xr-xr-x 7 root root 0 May 23 18:42 9834
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| ...
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| -r--r--r-- 1 root root 16024 May 23 22:27 config.gz
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| -r--r--r-- 1 root root 0 May 23 22:27 consoles
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| -r--r--r-- 1 root root 0 May 23 22:27 cpuinfo
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| ...
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| </console>
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| ''<code>config.gz</code>'' holds the running kernel (System Rescue CD) configuration, just copy the unziped content into the Gentoo sources directory:
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| <console>
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| ###i## cd /usr/src/linux
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| ###i## zcat /proc/config.gz > .config
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| </console>
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| Next, run ''<code>make oldconfig</code>'' to set all newly added options:
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| <console>
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| ###i## make oldconfig
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| </console>
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| Next, tweak the kernel configuration in the way you prefer (manually edition of the .config file, make nconfig, make menuconfig....) if you wish. You are not ready yet! A final step is required: '''you ''must'' either set CONFIG_INITRAMFS_SOURCE to a blank value (CONFIG_INITRAMFS_SOURCE="") either delete the statement in the .config file'''. Forgotting to do that will make Genkernel abort the compilation process with a message like:
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| <console>
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| /usr/src/linux-2.6.39-gentoo/scripts/gen_initramfs_list.sh: Cannot open '/var/tmp/genkernel/initramfs-2.6.32.14-std155-i386.cpio.gz'
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| make[1]: *** [usr/initramfs_data.cpio.lzma] Error 1
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| </console>
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| == Third step: Building and installing the kernel ==
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| This is simply achieved by:
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| <console>
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| ###i## genkernel --no-mrproper all
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| </console>
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| The same remarks written in the [[Genkernel_Quick_Start_Tutorial#Third_step:_Building_and_installing_the_kernel|third paragraph]] of the first use case are still valid here.
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| [[Category:Kernel]]
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