1.apt update && apt install -y curl wget sudo

1.设置host
PVE官方要求，/etc/hosts需要做如下修改：

首先设置hostname，根据实际情况自行修改，我这里设置为pve

修改/etc/hosts，添加如

下内容

2.添加PVE安装源

依次执行下面的命令：

2.apt update && apt install -y curl wget sudo

W: GPG error: https://mirrors.tuna.tsinghua.edu.cn/proxmox/debian bullseye InRelease: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY DD4BA3917E23BF59
E: The repository 'https://mirrors.tuna.tsinghua.edu.cn/proxmox/debian bullseye InRelease' is not signed.
N: Updating from such a repository can't be done securely, and is therefore disabled by default.
N: See apt-secure(8) manpage for repository creation and user configuration details.

apt-get install gnupg2

apt-key adv --keyserver keyserver.ubuntu.com --recv-keys DD4BA3917E23BF59

aptupdate && aptinstall -y curl wget sudo

apt install proxmox-ve postfix open-iscsi

echo "debhttps://mirrors.tuna.tsinghua.edu.cn/proxmox/debian buster pve-no-subscription" > /etc/apt/sources.list.d/pve-install-repo.list