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#参考资料

###下载单个文件，默认将输出打印到标准输出中(STDOUT)中

curl http://www.centos.org

常用镜像仓库

DockerHub镜像仓库
google镜像仓库

https://gcr.io/google-containers/

https://gcr.io/kubernetes-helm/

deb http://mirrors.aliyun.com/ubuntu bionic main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu bionic-updates main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu bionic-backports main restricted universe multiverse

deb http://security.ubuntu.com/ubuntu/ bionic-security main restricted universe multiverse
deb http://archive.canonical.com/ubuntu/ bionic partner

Important: I'm writing this when the last version of macOS (and the one I have installed) is Mojave. There is already a script which installs Mojave in a virtual machine here https://github.com/img2tab/okiomov. But if you are curios how to do everything manually to install High Sierra, then this guide may be useful.

After reading a few articles I ended up with these steps:

On macOS, download the High Sierra installer (even if you have Mojave installed): https://itunes.apple.com/us/app/macos-high-sierra/id1246284741?ls=1&mt=12
If the High Sierra Installer starts, quit it.
Open "Disk Utility".
Click on "File" > "New Image" > "Blank image...". Or just press cmd+N.

	virt-install \
	--name=centos-compute-$i \
	--ram=32768 \
	--vcpus=16 \
	--cpu host-model-only \
	--os-type linux \
	--os-variant centos7.0 \
	--import \
	--disk path=/var/lib/libvirt/images/centos74-compute-$i.qcow2,bus=virtio,cache=none,format=qcow2,bus=virtio \
	--network type=direct,source=enp6s0f0,source_mode=bridge,model=virtio \

	Run powershell as administrator:
	-posh-gvm installation:
	Execute (new-object Net.WebClient).DownloadString('https://raw.githubusercontent.com/flofreud/posh-gvm/master/GetPoshGvm.ps1') \| iex
	Execute Import-Module posh-gvm
	// if you have problems with execution policy (https://msdn.microsoft.com/powershell/reference/5.1/Microsoft.PowerShell.Core/about/about_Execution_Policies)
	// Set-ExecutionPolicy RemoteSigned -Scope CurrentUser
	// later return to old value
	Execute gvm help to get started!

	-sdkman installation:

	echo "192.168.121.9 centos-master
	192.168.121.65 centos-minion" >> /etc/hosts