Difference between pages "User:Renich/Funtoo on KVM/Qemu and Virtio" and "User:Ryao"

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(expanded the instructions on how to boot the guest)
 
 
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{{Fancynote | This article is still in development}}
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{{Person
 
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|Full name=Richard Yao
Funtoo is [[KVM]]/[[wikipedia:Qemu | Qemu]] ready.
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|Email=ryao@gentoo.org
 
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|Nick=ryao
In order for it to work, you need to make sure that you've enabled Virtio support on the kernel.
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|Geoloc=40.9955012, -74.3439009
 
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|Location name=Stony Brook, New York, United States of America
== Pre-Requisites ==
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|Roles=
* You are following the [[Funtoo_Linux_Installation | Funtoo Linux Installation]] Guide.
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|Maintains=
* You figured out how to use [[Genkernel]] by reading the [[Genkernel_Quick_Start_Tutorial | Genkernel Quick Start Tutorial]].
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|Blogs={{Blog
* You are using the most current vanilla-sources
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|Name=Richard Yao's Blog
 
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|URL=http://blogs.gentoo.org/ryao
== Procedure ==
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}}
Carry on until you reach the [[Funtoo_Linux_Installation#Configuring_and_installing_the_Linux_kernel | Configuring and installing the linux kernel]] section.
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}}
 
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=== Step 1: Install Genkernel ===
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emerge sys-kernel/genkernel
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=== Step 2: Install the vanilla sources ===
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emerge sys-kernel/vanilla-sources
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=== Step 3: Start configuring and building the kernel ===
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genkernel --menuconfig all
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=== Step 4: Search and enable the essential Virtio drivers ===
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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.
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{{Note | The console will let you know what is available. Pay special attention to the location section.}}
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=== Step 5: Continue with [[Funtoo_Linux_Installation#Installing_a_Bootloader | Funtoo Linux Installation]] Guide ===
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== Testing ==
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=== Boot the Guest ===
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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:
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qemu-kvm -boot c -drive file=/var/lib/libvirt/images/funtoo.img,if=virtio -m 512
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== Troubleshooting ==
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=== Determining root device fails ===
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For some reason, on kernel 3.4.5, it fails to load the modules automatically. You can workaround it by adding:
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doload=virtio_pci,virtio_blk
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to the kernel line; at the grub prompt; at boot time. It should look something like this:
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<pre>
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set timeout=3
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set default=0
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menuentry "Funtoo Linux genkernel - kernel-genkernel-x86_64-3.4.5" {
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  insmod part_gpt
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  insmod ext2
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  set root=(hd0,2)
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  search --no-floppy --fs-uuid --set 22b809f0-86be-422a-8bdd-6f4362da83ed
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  linux /kernel-genkernel-x86_64-3.4.5 real_root=/dev/vda4 doload=virtio_pci,virtio_blk
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  initrd /initramfs-genkernel-x86_64-3.4.5
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  set gfxpayload=keep
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}
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</pre>
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Once you boot, a permanent workaround should look like this:
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<pre>
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mount /dev/vda2 /boot
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cat /boot/grub/grub.cfg
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set timeout=3
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set default=0
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menuentry "Funtoo Linux genkernel - kernel-genkernel-x86_64-3.4.5" {
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  insmod part_gpt
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  insmod ext2
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  insmod virtio_pci
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  insmod virtio_blk
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  insmod virtio_net
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  set root=(hd0,2)
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  search --no-floppy --fs-uuid --set 22b809f0-86be-422a-8bdd-6f4362da83ed
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  linux /kernel-genkernel-x86_64-3.4.5 real_root=/dev/vda4 doload=virtio_pci,virtio_blk
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  initrd /initramfs-genkernel-x86_64-3.4.5
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  set gfxpayload=keep
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}
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</pre>
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== Reference ==
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* [[wikipedia: KVM]]
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* [[wikipedia: Qemu]]
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* http://www.linux-kvm.org/page/Virtio
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Latest revision as of 19:23, 5 January 2013


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Stony Brook, New York, United States of America (40° 59' 43.8043", -74° 20' 38.0432")