1.修改虛機配置(zhi)(zhi)xml配置(zhi)(zhi)

vi /etc/libvirt/qemu/dns-run.xml

virsh shutdown dns-run

virsh create /etc/libvirt/qemu/dns-run.xml

2.查看cpu核(he)心數

 virsh dominfo dns-run | grep CPU

3.kvm虛機克(ke)隆(long)(以飛騰環境為例(li))

虛(xu)機xml配置文(wen)件(jian)復制

cp LB-server-cc-10e53e15e63.xml dns-server-cc-10e53e15e69.xml

  xml修改(gai)為修改(gai)為，默認網卡的(de)mac地址隨便改(gai)一個

<nvram>/var/lib/libvirt/qemu/nvram/dns-server-cc-10e53e15e69_VARS.fd</nvram>

<source file='/data/sata-sdb/dns-server-cc-10e53e15e69-sda.qcow2'/>

<source file='/data/sata-sdb/dns-server-cc-10e53e15e69_sdb.qcow2'/>

<source mode='bind' path='/var/lib/libvirt/qemu/dns-server-cc-10e53e15e69.agent'/>

cp LB-server-cc-10e53e15e63_VARS.fd dns-server-cc-10e53e15e69_VARS.fd

cp LB-server-cc-10e53e15e63_sdb.qcow2 dns-server-cc-10e53e15e69_sdb.qcow2

cp LB-server-cc-10e53e15e63-sda.qcow2 dns-server-cc-10e53e15e69-sda.qcow2

virsh define /etc/libvirt/qemu/dns-run-server-cc-10e53e15e69.xml

主(zhu)機名 網卡(ka)0 修改

vi /etc/hostname

4.增加網卡

查看網卡信息

virsh domiflist dns-server-cc-10e53e15e69 

virsh attach-interface dns-server-cc-10e53e15e69 --type bridge --source os_manage --model virtio --config

 5.增加網卡隊列數

<interface type='bridge'>
<mac address='52:54:00:24:2f:98'/>
<source bridge='os_manage'/>
<model type='virtio'/>
<driver queues='4'/>
<address type='pci' domain='0x0000' bus='0x01' slot='0x00' function='0x0'/>
</interface>

6.查看鏡像大小

qemu-img info dns-run-sda-mini.qcow2

7.鏡(jing)像壓縮 ， 超(chao)級好(hao)用！！！

virt-sparsify --format qcow2 --compress dns-run-sda.qcow2 dns-run-sda-mini.qcow2

 8.網卡重啟

systemctl restart NetworkManager

 ifup eth0

 9.kvm修改虛機密碼

virt-edit -d kvm-name /etc/shadow

# 只需要替換第一行root的密碼 root:$1$bTPRDWwf$LpjUZmGTHw.hYFccl0/lK.:16804:0:99999:7:::

更(geng)換為 root:$1$hello$ZwmhCpcG.I1XIfVjdarKc1::16804:0:99999:7::