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系统环境：ubuntu 12.04 LTS amd64

必须安装64位，才可以安装KVM虚拟机。32位系统的内核默认没有把KVM模块编译进去，而且源中也没有与虚拟化相关的软件包，如Qemu等

 

一、KVM的编译安装

 1、安装基本系统和开发工具

1.1 编译内核

mkdir /root/kvm

cd /root/kvm wget tar -zvxf linux-3.5.tar.gz -C /usr/src cd /usr/src/linux-2.6.34.4 make menuconfig

vi .config

增加

CONFIG_SYSFS_DEPRECATED_V2=y CONFIG_STP=m CONFIG_BRIDGE=m 修改 CONFIG_STP=y CONFIG_BRIDGE=y   make -j30 all make modules_install make install

1.2 安装kvm_mod

 

wget

tar -jvxf kvm-kmod-3.5.tar.bz2 cd kvm-kmod-3.5 ./configure make && make install reboot

1.3 确认kvm_kmod安装成功

lsmod | grep kvm

kvm_intel              40286  0

kvm                   266256  1 kvm_intel

如果你的系统是64位可以直接进行这一步，因为64位的ubuntu是自带kvm模块的

 

1.4 安装qemu-kvm

 

apt-get install -y libglib2.0-dev cd /root/kvm

wget

tar -zxf qemu-kvm-0.12.5.tar.gz cd qemu-kvm-0.12.5 ./configure --prefix=/usr/local/kvm  --disable-vnc-tls  --disable-vnc-sasl  --disable-curl   --enable-system  --static make && make install   ln -s /usr/local/kvm/bin/qemu-img /usr/bin/qemu-img ln -s /usr/local/kvm/bin/qemu-io /usr/bin/qemu-io ln -s /usr/local/kvm/bin/qemu-nbd /usr/bin/qemu-nbd ln -s /usr/local/kvm/bin/qemu-system-x86_64 /usr/bin/qemu ln -s /usr/local/kvm/bin/qemu-system-x86_64 /usr/bin/kvm ln -s /usr/local/kvm/bin/qemu-system-x86_64 /usr/bin/qemu-kvm

二、libvirt的编译安装

apt-get install -y libdevmapper libdevmapper-dev libgnutls-dev libxml2-dev libpciaccess-dev libudev-dev libnl-dev gnutls-bin

cd /root/kvm

wget

tar -zxf libvirt_1.0.2.orig.tar.gz cd libvirt-1.0.2 ./configure --prefix=/usr/local/libvirt --enable-debug=no --with-storage-lvm=no make && make install   ln -s /usr/local/libvirt/bin/virsh /usr/bin/virsh

 

三、virtinst的编译安装

四、常见错误问题

问题一：configure: error: You must install the GnuTLS library in order to compile and run libvirt

解决方法：

Ubuntu：apt-get  install -y libgnutls-dev

 

问题二：

/usr/local/libvirt/sbin/libvirtd   

19:49:56.942: error : virRunWithHook:857 : internal error 'brctl setfd virbr0 0' exited with non-zero status 1 and signal 0: libvir: error : cannot execute binary brctl: No such file or directory        

 19:49:56.982: warning : qemudStartup:1832 : Unable to create cgroup for driver: No such device or address

解决方法：

Ubuntu：apt-get install -y bridge-utils

 

问题三：

19:51:11.368: error : virRunWithHook:857 : internal error '/sbin/iptables --table filter --insert FORWARD --destination 192.168.122.0/255.255.255.0 --out-interface virbr0 --match state --state ESTABLISHED,RELATED --jump ACCEPT' exited with non-zero status 1 and signal 0: iptables: Unknown error 18446744073709551615  

19:51:11.368: error : networkAddMasqueradingIptablesRules:637 : failed to add iptables rule to allow forwarding to 'virbr0': Invalid argument 19:51:11.420: warning : qemudStartup:1832 : Unable to create cgroup for driver: No such device or address

如果使用桥接网络独立IP可以忽略

问题四：

 

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