_isover=16.04.5
ISONAME="$DISTRONAME ${_isover} amd64"
ISOURL="${_isover}/ubuntu-${_isover}-desktop-amd64.iso"
SHA256=6b505fd3b6f816f8ff058710f127a9900e9233e496783ce08a0022814d224810

mirrorlist=(
https://mirrors.tuna.tsinghua.edu.cn/ubuntu-releases
http://releases.ubuntu.com
http://mirrors.ustc.edu.cn/ubuntu-releases
)