下载Unraid的升级配置插件https://s3.amazonaws.com/dnld.lime-technology.com/next/unRAIDServer.plg，

打开文件，在开头找到

<!DOCTYPE PLUGIN [
<!ENTITY name "unRAIDServer">
<!ENTITY author "LimeTech">
<!ENTITY version "6.9.0-beta25">
<!ENTITY category "next">
<!ENTITY pluginURL "https://s3.amazonaws.com/dnld.lime-technology.com/&category;/&name;.plg">
<!ENTITY zip "https://s3.amazonaws.com/dnld.lime-technology.com/&category;/&name;-&version;-x86_64.zip">
<!ENTITY md5 "https://s3.amazonaws.com/dnld.lime-technology.com/&category;/&name;-&version;-x86_64.md5">
<!ENTITY files "bz*,make_bootable.bat,make_bootable_linux,make_bootable_mac,memtest,changes.txt,license.txt,syslinux/syslinux.cfg-">

<!ENTITY infozip "infozip-6.0-i486-1.txz">
]>

将https://s3.amazonaws.com/dnld.lime-technology.com/&category;/&name;-&version;-x86_64.zip中的&category;、&name;和&version;替换成对应的值，获得链接
https://s3.amazonaws.com/dnld.lime-technology.com/next/unRAIDServer-6.9.0-beta25-x86_64.zip
下载后即可得到测试版的安装包