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Install/Kernel

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{{InstallNavigation|num<translate><includeonly>=13|prev=Introducing Portage|nextPrepare Disk == <!--T:1--></includeonly><noinclude><languages/>= Install Guide: Install a Kernel =Bootloader}}
Funtoo Linux stage3's include a pre<!-built -T:2-->{{cInstallNavigation|debian-sourcesnum=13|prev=Introducing Portage|next=Bootloader}} kernel to make installation faster and easier. To see if debian-sources is installed, type:</noinclude>
<!--T:32-->
Funtoo Linux stage3's include a pre-built {{c|debian-sources-lts}} kernel to make installation faster and easier. To see what kernel version is pre-installed, type:
 
<!--T:18-->
{{console|body=
(%chroot) # % ##i##emerge -s debian-sources-lts
Searching...
[ Results for search key : ##b##debian-sources-lts##!b## ]
[ Applications found : ##b##1##!b## ]
<!--T:19-->* ##b##sys-kernel/debian-sources-lts##!b## ##g##Latest version available:##!g## 34.199.3130 ##g##Latest version installed:##!g## 34.199.3130 ##g##Size of files:##!g## 8195,292 022 kB ##g##Homepage:##!g## httphttps://wwwpackages.debian.org/stable/kernel/linux-image-4.9.0-6-amd64
##g##Description:##!g## Debian Sources (and optional binary kernel)
##g##License:##!g## GPL-2
}}
If a version is listed under {{c|Latest version installed}}, then debian=== Firmware === <!-sources is already pre-built for you and you can skip the rest of the Kernel section, and proceed to the [[#Installing a Bootloader|Installing a Bootloader section]].T:33-->
{{Important|1=<!--T:34-->At this point it is wise to emerge the latest {{c|sys-kernel/linux-firmware}} package, because various drivers rely on firmware blobs and instructions. Hardware like wiWi-fi Fi cards, graphic cards, network cards, and others will not work properly or at all if firmware is not presentavailable.If using the ''{{c|stage3}}'' image, perform the following to install it. {{c|linux-firmware}} will be already installed if using the ''{{c|gnome}}'' image:
<!--T:35-->{{console|body==== Building the Kernel ==== %chroot% ##i##emerge -av linux-firmware}}
If you need to build a kernel for Funtoo Linux, please follow these steps=== Modern Intel Chipsets === <!--T:36-->
<!--T:37-->If you have a modern Intel system (Skylake, Coffee Lake or newer) then you may be better served by the newer {{Notec|1=See [[Funtoo Linux Kernels]] for a full list of kernels supported in Funtoo Linux. We recommend <code>debian-sources</code> }} kernelas it will have support for new usersmore modern Intel WiFi and integrated graphics chipsets.}}To use this kernel, you will want to perform the following steps:
<!--T:38-->{{Importantconsole|1body=<code>%chroot% ##i##echo "sys-kernel/debian-sources</code> with <code>binary</code> USE flag requires at least 20GB free in <code" >/varetc/tmp<portage/code> and takes around 1 hour to build on a Intel Core i7 Processorpackage.}}use Let's emerge our kernel: <console>(%chroot) # % ##i##emerge -av debian-sources</console> Once <code>emerge</code> completes, you'll have a brand new kernel and initramfs installed to <code>/boot</code>, plus kernel headers installed in <code>/usr/src/linux</code>, and you'll be ready to configure the boot loader to load these to boot your Funtoo Linux system. {{warning|If you have a RAID in your machine, the kernel installation will pull in the <code>mdadm</code> tool as a dependency. It is important to edit the <code>/etc/mdadm.conf</code> file prior to rebooting the machine so the RAID is properly recognised and set up before the kernel attempts to mount it in the tree. Failing to do so can result in an unusable or even unbootable system! For specific details, consult the mdadm man page <code>man mdadm</code> or the [[Package:Mdadm|mdadm]] ebuild page.}} {{fancynote|NVIDIA card users: the <code>binary</code> USE flag installs the Nouveau drivers which cannot be loaded at the same time as the proprietary drivers, and cannot be unloaded at runtime because of KMS. You need to blacklist it under <code>/etc/modprobe.d/</code>.}}
<!--T:39-->Then, when you configure {{fancynotec|For an overview of other kernel options for Funtoo Linux/etc/boot.conf}} in the next section, see [[Funtoo Linux Kernels]]. There may be modules you will want to ensure that the Debian {{c|debian-sources}} (not {{c|debian-sources-lts}}) is selected as your default kernel doesn't include, a situation where [http://www.funtoo.org</wiki/Funtoo_Linux_Kernels#Using_Debian-Sources_with_Genkernel genkernel] would be useful. Also be sure to see [[:Category:Hardware Compatibilitytranslate><noinclude>{{InstallNavigation|num=13|prev=Introducing Portage|next=Bootloader|hardware compatibility]] information.align=right}}</noinclude>
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