kvm笔记总结

待记录

windows虚拟机（kvm）复制粘贴

https://forum.suse.org.cn/t/topic/15406
https://bbs.deepin.org/zh/post/259929
https://dausruddin.com/how-to-enable-clipboard-and-folder-sharing-in-qemu-kvm-on-windows-guest/

virt-mannager打不开

https://stackoverflow.com/questions/29468421/gtk-warning-cannot-open-display-launching-background-gtk
https://segmentfault.com/a/1190000039811754

KVM Web管理平台

1.WebVirtMgr
https://www.cnblogs.com/cnsre/p/12881921.html#3518-1530603185411
2.virt-mannager

克隆

https://cloud.tencent.com/developer/article/2017453
https://www.cnblogs.com/5201351/p/4461000.html

刪除

https://www.jianshu.com/p/6ca7910363d1

报错总结

https://www.cnblogs.com/daisyyang/p/10953202.html

常用命令总结

参考链接：
https://cloud.tencent.com/developer/article/2115851

1. 启动

virsh start [name]

2. 停止

virsh stop[name]

3. 重启

virsh restart [name]

4. 查看所有的列表

virsh list --all

批量安裝windows项目总结

安装kvm相关包：
sudo apt install qemu-kvm virt-manager libvirt-daemon-system -y
sudo systemctl --now enable libvirtd
sudo chown -R jasmine. /filecoin_1
mkdir /filecoin_1/kvm/libvirt -pv
sudo mv /var/lib/libvirt /filecoin_1/kvm/ 
sudo ln -sv /filecoin_1/kvm/libvirt /var/lib/libvirt

通过xml文件创建虚拟机：
virsh define /etc/libvirt/qemu/win-test.xml


os-images:/filecoin_1/kvm/libvirt/person/os-images/
file:/filecoin_1/kvm/libvirt/images/win/

win10: /filecoin_1/kvm/libvirt/person/os-images/Windows10.iso
host=win1 && qemu-img create -f qcow2 $host/$host.qcow2 40G

克隆虚拟机
host=win2 && virt-clone -o  windows10-test -n $host -f /filecoin_1/kvm/libvirt/images/win/$host/$host.qcow2

/filecoin_1/kvm/libvirt/images/win/win1/win10-1.qcow2

内存管理：
https://www.cnblogs.com/ygbh/p/17420868.html

virt-install --virt-type kvm --name windows10 --ram 4096 --vcpus 2 \
--cdrom=/filecoin_1/kvm/libvirt/person/os-images/Windows10.iso \
--disk path=/filecoin_1/kvm/libvirt/images/win/win-test/win-test.qcow2 --network network=default \
--graphics vnc,listen=0.0.0.0 --noautoconsole


for i in `seq 24 50`;do host=win$i && virt-clone -o  windows10-test -n $host -f /filecoin_1/kvm/libvirt/images/win/$host/$host.qcow2;done

kvm命令：
pdf
kvm克隆细节：
https://www.cnblogs.com/5201351/p/4461000.html

kvm配置网桥网络（虚拟机和物理机在同一个内网）

ubuntu网桥配置文件更改：

jasmine@JMT-SW7-F12-DLR-0-166:~$ cat /etc/netplan/00-installer-config.yaml 
# This is the network config written by 'subiquity'
network:
  ethernets:
    enp4s0:
      dhcp4: no
      dhcp6: no
  bridges:
    br0:
      dhcp4: no
      dhcp6: no
      addresses:
      - 10.20.0.166/21
      gateway4: 10.20.0.1
      nameservers:
        addresses: [223.6.6.6]
      interfaces:
        - enp4s0
  version: 2

网桥配置完成后，需要检查两个内核参数配置

1. ipv4转发配置
2. bridge-nf-call-iptables 网桥iptables设置问题
   cat /proc/sys/net/bridge/bridge-nf-call-iptables

值 要为0，不为0 需要重置

echo 0 > /proc/sys/net/bridge/bridge-nf-call-iptables

sudo tee /etc/sysctl.d/kubernetes.conf <<EOF
net.bridge.bridge-nf-call-ip6tables = 1
net.bridge.bridge-nf-call-iptables = 1
net.ipv4.ip_forward = 1
EOF

跨机器迁移kvm虚拟机

1. 导出kvm虚拟机的xml配置文件，并拷贝到目标机器的/etc/libvirt/qemu/ 这个目录下

virsh list --all| grep ubuntu
virsh domblklist k8s_ubuntu_template
 virsh dumpxml k8s_ubuntu_template > k8s_ubuntu_template.xml

scp *.xml DEST_HOST_IP:/etc/libvirt/qemu/

2. 拷贝虚拟机的系统盘

scp -r ubuntu2204/ DEST_HOST_IP:`pwd`

3. DEST_HOST操作导入

virsh define /etc/libvirt/qemu/k8s_ubuntu_template.xml

4. 启动后检查

virsh start domain