Linux-qcow2 format install virtual machine and script one-click Clone qcow2 virtual Machine

1 using QCOW2 format disk file when hard disk KVM installed (clone system occupies very small space)

Cd/var/lib/libvirt/images (disk file storage area)

Qemu-img create-f qcow2 haha.img 80G (disk Instant creation complete, potential size 80G, actual size by current actual consumption size)

Virt-manager installed, hard drive Select/var/lib/libvirt/images/haha.img

Qcow2 Cloning (quick creation of new disk files) qemu-img create-b haha.img-f qcow2 haha01.img

2 Cloning qcow2 format KVM virtual machine with script

#!/bin/bash

Img_dir=/var/lbi/libirt/images #定义磁盘路径

Basevm=haha #定义原系统名

Xmlfile=/tmp/myvm.xml #定义xml命令文件路径

While [1]

Do

Read-p "Please enter the cloned virtual machine digital code:" Vmnum #脚本交互模式

If [-Z ' ${vmnum} '];then #输入的不是数字

echo "You can't enter anything."

Continue #跳出当前循环

elif ["$VMNUM"! = $ (echo ${vmnum}*1 | BC)];then #判断输入的值是不是数字

echo "You must enter a number"

Continue #跳出当前循环

elif ["$VMNUM"-lt 0-1 "$VMNUM"-gt];then #判断输入的小于1或者大于99

echo "The number you entered is invalid"

Continue

Else

Break #跳出所有循环

Fi

Done

Newvm=hahanew${vmnum} #定义新客隆系统名

If [-F ${img_dir}/${newvm}.img];then #判断用户输入的编号是否已存在

echo "${NEWVM} already exists!!!"

Exit 1

Fi

Echo-en "Creating Disk ... \t\t\t" #-n: Non-newline-e uses special characters currently using n

Qemu-img create-b ${img_dir}/${basevm}.img-f qcow2 ${img_dir}/{newvm}.img &>/dev/null #克隆

Echo-e "\e[32;1m[ok]\e[0m" #输出绿色的OK

Virsh dumpxml rhel6 > $XMLFILE #指定xml路径

Sed-i "/<NAME>${BASEVM}/S/${BASEVM}/${NEWVM}" $XMLFILE #修改系统名

Sed-i "/uuid/s/<uuid>.*</<uuid>$ (Uuidgen) </" $XMLFILE #修改UUID

Sed-i "/libvirt/s/${basevm}/${newvm}/" $XMLFILE #修改磁盘

Sed-i "/mac addr/s/00 '/${vmnum} '/" $XMLFILE #修改MAC地址

Echo-en "New virtual machine cloning complete ..../t/t/t"

Virsh define $XMLFILE &>/dev/null #定义新的虚拟机

echo "[OK]"

Linux-qcow2 format install virtual machine and script one-click Clone qcow2 virtual Machine