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(expanded the instructions on how to boot the guest)
 
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{{Fancynote | This article is still in development}}
 
  
Funtoo is [[KVM]]/[[wikipedia:Qemu | Qemu]] ready.
 
 
In order for it to work, you need to make sure that you've enabled Virtio support on the kernel.
 
 
== Pre-Requisites ==
 
* You are following the [[Funtoo_Linux_Installation | Funtoo Linux Installation]] Guide.
 
* You figured out how to use [[Genkernel]] by reading the [[Genkernel_Quick_Start_Tutorial | Genkernel Quick Start Tutorial]].
 
* You are using the most current vanilla-sources
 
 
== Procedure ==
 
Carry on until you reach the [[Funtoo_Linux_Installation#Configuring_and_installing_the_Linux_kernel | Configuring and installing the linux kernel]] section.
 
 
=== Step 1: Install Genkernel ===
 
emerge sys-kernel/genkernel
 
 
=== Step 2: Install the vanilla sources ===
 
emerge sys-kernel/vanilla-sources
 
 
=== Step 3: Start configuring and building the kernel ===
 
genkernel --menuconfig all
 
 
=== Step 4: Search and enable the essential Virtio drivers ===
 
To be able to search for all Virtio options, just type ''/'' on the ''TUI'' (Terminal User Interface) and, then, type 'virtio'. Please, consult: [http://www.linux-kvm.org/page/Virtio KVM's website] in order to get a list of options available in the Kernel's config.
 
 
{{Note | The console will let you know what is available. Pay special attention to the location section.}}
 
 
=== Step 5: Continue with [[Funtoo_Linux_Installation#Installing_a_Bootloader | Funtoo Linux Installation]] Guide ===
 
 
== Testing ==
 
=== Boot the Guest ===
 
You should be able to boot the guest without problems. If you're using virt-manager, then just hit "play" on the Guest. If you're a commandline dude, please, issue the following command:
 
 
qemu-kvm -boot c -drive file=/var/lib/libvirt/images/funtoo.img,if=virtio -m 512
 
 
== Troubleshooting ==
 
 
=== Determining root device fails ===
 
For some reason, on kernel 3.4.5, it fails to load the modules automatically. You can workaround it by adding:
 
 
doload=virtio_pci,virtio_blk
 
 
to the kernel line; at the grub prompt; at boot time. It should look something like this:
 
 
<pre>
 
set timeout=3
 
set default=0
 
 
menuentry "Funtoo Linux genkernel - kernel-genkernel-x86_64-3.4.5" {
 
  insmod part_gpt
 
  insmod ext2
 
  set root=(hd0,2)
 
  search --no-floppy --fs-uuid --set 22b809f0-86be-422a-8bdd-6f4362da83ed
 
  linux /kernel-genkernel-x86_64-3.4.5 real_root=/dev/vda4 doload=virtio_pci,virtio_blk
 
  initrd /initramfs-genkernel-x86_64-3.4.5
 
  set gfxpayload=keep
 
}
 
</pre>
 
 
Once you boot, a permanent workaround should look like this:
 
<pre>
 
mount /dev/vda2 /boot
 
 
cat /boot/grub/grub.cfg
 
set timeout=3
 
set default=0
 
 
menuentry "Funtoo Linux genkernel - kernel-genkernel-x86_64-3.4.5" {
 
  insmod part_gpt
 
  insmod ext2
 
  insmod virtio_pci
 
  insmod virtio_blk
 
  insmod virtio_net
 
  set root=(hd0,2)
 
  search --no-floppy --fs-uuid --set 22b809f0-86be-422a-8bdd-6f4362da83ed
 
  linux /kernel-genkernel-x86_64-3.4.5 real_root=/dev/vda4 doload=virtio_pci,virtio_blk
 
  initrd /initramfs-genkernel-x86_64-3.4.5
 
  set gfxpayload=keep
 
}
 
</pre>
 
 
== Reference ==
 
* [[wikipedia: KVM]]
 
* [[wikipedia: Qemu]]
 
* http://www.linux-kvm.org/page/Virtio
 

Revision as of 04:08, 28 August 2012