80vps 发布的文章 - 80vps 博客 

80vps 发布的文章

linux下使用virsh批量关闭或开启KVM虚拟机

批量关闭（软关机）

  1. for i in $(virsh list --name --autostart);do virsh shutdown $i;done

批量关闭（硬关机）

  1. for i in $(virsh list --name --autostart);do virsh destroy $i;done

批量开启

  1. for i in $(virsh list --name --autostart);do virsh start $i;done

批量开启关闭状态的虚拟机

  1. for i in $(virsh list --name --inactive);do virsh start $i;done

Convert Citrix Xenserver XVA Image to KVM

qemu-img is a tool apart of the qemu-utils package that lets you convert a wide variety of disk images from one hypervisor to another. However Citrix Xenserver image format XVA is not an option for qemu-img, so lets add it!

Here’s how to convert an XVA image to KVM.

Extract the XVA image.

A XVA file is a carefully created tarball we will need to extract.

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mkdir xva_uncompressed
tar -xf virtual_machine.xva -C xva_uncompressed

Create a raw image

Use xva-img to create a raw disk image from the extracted xva data.

First we will build xva-img:

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git clone https://github.com/eriklax/xva-img.git
cd xva-img/
cmake .
sudo make install
cd ../

Create raw disk image: Note the Ref\:1 may be different.

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xva-img -p disk-export xva_uncompressed/Ref\:1/ virtual_machine.raw

Convert RAW image to KVM using qemu-img

Install qemu-utils

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#Debian/Ubuntu
sudo apt-get install qemu-utils
#RHEL/CentOS/Fedora
sudo yum install qemu-kvm qemu-img

Covert raw image to qcow2

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qemu-img convert -f raw -O qcow2 virtual_machine.raw virtual_machine.qcow2

Import qcow2 disk image to KVM

Import the qcow2 image to your KVM environment, then attach the image to a VM. In my environment, I use oVirt:

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