linux營運基礎篇 unit15

標籤：unit 15 練習

15.系統虛擬機器管理

 

 

1.安裝

 

#!/bin/bash                                 ##命令運行環境的指定

virt-install \                              ##安裝虛擬機器

--name $1 \                                 ##虛擬機器名稱指定，$1表示指令碼後的第一串字元

--ram 1000 \                                ##記憶體

--file /var/lib/libvirt/images/$1.img \     ##硬碟檔案

--file-size 8 \                             ##硬碟檔案大小

--cdrom /var/ftp/pub/iso/rhel-server-7.1-x86_64-dvd.iso &  ##安裝源指定

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2.管理

virt-manager                                 ##開啟圖形管理工具

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virt-viewer vmname                           ##顯示虛擬機器,vmname表示虛擬機器名稱

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virsh list                                   ##列出正在啟動並執行vm

virsh list --all                             ##列出所有vm

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virsh start vmname                           ##運行指定vm

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virsh shutdown vmname                        ##正常關閉指定vm

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virsh destroy vmname                         ##強行結束指定vm

virsh create vmname.xml                      ##臨時恢複指定vm，vmname表示前端管理檔案

virsh define vmname.xml                      ##永久恢複vm

virsh undefine  vmname                       ##刪除vm的前端管理，不會刪除儲存

 

 

3.虛擬機器快照

qemu-img create -f qcow2 -b vm2.qcow2 node1.qcow2

 

 

!/bin/bash

virsh destroy $1 &> /dev/null

virsh undefine $1 &> /dev/null

qemu-img create -f qcow2 -b /var/lib/libvirt/images/$1.qcow2  /var/lib/libvirt/images/$2.qcow2 &> /dev/null

virt-install \

--name $2 \

--ram 1000 \

--disk /var/lib/libvirt/images/$2.qcow2 \

--import &> /dev/null &

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linux營運基礎篇 unit15