我只是想将 webmin 设置为新 VPS 上的第一件事，我熟悉 Ubuntu（它是我的主要工作机器）。
这就是 VPS 上的内容
Description: Debian GNU/Linux 8.5 (jessie)
Release: 8.5
Codename: jessie
所以我按照说明下载并安装 virtualmin：
wget http://software.virtualmin.com/gpl/scripts/install.sh
sudo /bin/sh install.sh
它开始很好，但最终失败了：
[INFO] 在 /root/virtualmin-install.log 中开始安装日志
▣□□ Phase 1 of 3: Setup
Installing extra dependencies for Debian 8 [ ✔ ]
Downloading apt.gpg [ ✔ ]
Adding GPG key for PHP7 packages [ ✔ ]
Downloading RPM-GPG-KEY-virtualmin-6 [ ✔ ]
Downloading RPM-GPG-KEY-webmin [ ✔ ]
Installing Virtualmin 6 key [ ✔ ]
Installing Webmin key [ ✔ ]
Updating apt metadata [ ✔ ]
Downloading repository metadata [ ✔ ]
Disabling cdrom: repositories [ ✔ ]
Cleaning out old metadata [ ✔ ]
▣▣□ Phase 2 of 3: Installation
Installing Webmin [ERROR] Failed with error: 100
[ ✘ ]
[ERROR] Something went wrong. Exiting.
[ERROR] The last few log entries were:
Reading state information...
Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.
The following information may help to resolve the situation:
The following packages have unmet dependencies:
webmin : Depends: libauthen-pam-perl but it is not installable
Depends: libio-pty-perl but it is not installable
Depends: apt-show-versions but it is not installable
E: Unable to correct problems, you have held broken packages.
这是sources.list的样子
deb http://security.debian.org/ jessie/updates main contrib
deb-src http://security.debian.org/ jessie/updates main contrib
# jessie-updates, previously known as 'volatile'
# A network mirror was not selected during install. The following entries
# are provided as examples, but you should amend them as appropriate
# for your mirror of choice.
#
#deb http://ftp.debian.org/debian/ jessie-updates main contrib
#deb-src http://ftp.debian.org/debian/ jessie-updates main contrib
deb http://software.virtualmin.com/vm/6/gpl/apt virtualmin-jessie main
deb http://software.virtualmin.com/vm/6/gpl/apt virtualmin-universal main
然后我尝试安装一个丢失的包（并为每个丢失的包获得相同的响应）：
sudo apt install libauthen-pam-perl
Reading package lists... Done
Building dependency tree
Reading state information... Done
Package libauthen-pam-perl is not available, but is referred to by another package.
This may mean that the package is missing, has been obsoleted, or
is only available from another source
E: Package 'libauthen-pam-perl' has no installation candidate
因此，我尝试添加包含apt-show-versions（缺少的包之一）的存储库：
sudo add-apt-repository ...
但是该命令（add-apt-repository）不存在。所以我尝试加载software-properties-common，也找不到那个包。
我怎样才能摆脱这种精神错乱，把东西装满？
这就是我得到的sudo apt update：
Hit http://software.virtualmin.com virtualmin-jessie InRelease
Hit http://software.virtualmin.com virtualmin-universal InRelease
Hit http://packages.sury.org jessie InRelease
Hit http://security.debian.org jessie/updates InRelease
Hit http://software.virtualmin.com virtualmin-jessie/main amd64 Packages
Hit http://packages.sury.org jessie/main amd64 Packages
Get:1 http://packages.sury.org jessie/main Translation-en_GB [169 B]
Get:2 http://packages.sury.org jessie/main Translation-en [169 B]
Hit http://security.debian.org jessie/updates/main Sources
Hit http://security.debian.org jessie/updates/contrib Sources
Hit http://security.debian.org jessie/updates/main amd64 Packages
Get:3 http://packages.sury.org jessie/main Translation-en_GB [169 B]
Hit http://security.debian.org jessie/updates/contrib amd64 Packages
Hit http://security.debian.org jessie/updates/contrib Translation-en
Hit http://security.debian.org jessie/updates/main Translation-en
Get:4 http://packages.sury.org jessie/main Translation-en [169 B]
Hit http://software.virtualmin.com virtualmin-universal/main amd64 Packages
Get:5 http://packages.sury.org jessie/main Translation-en_GB [169 B]
Get:6 http://packages.sury.org jessie/main Translation-en [169 B]
Get:7 http://packages.sury.org jessie/main Translation-en_GB [169 B]
Get:8 http://packages.sury.org jessie/main Translation-en [169 B]
Get:9 http://packages.sury.org jessie/main Translation-en_GB [169 B]
Ign http://packages.sury.org jessie/main Translation-en_GB
Get:10 http://packages.sury.org jessie/main Translation-en [169 B]
Ign http://packages.sury.org jessie/main Translation-en
Ign http://software.virtualmin.com virtualmin-jessie/main Translation-en_GB
Ign http://software.virtualmin.com virtualmin-jessie/main Translation-en
Ign http://software.virtualmin.com virtualmin-universal/main Translation-en_GB
Ign http://software.virtualmin.com virtualmin-universal/main Translation-en
您应该将以下行添加到您的
/etc/apt/sources.list:然后
sudo apt update执行你的脚本。在执行安装脚本时，
libauthen-pam-perl将自动从存储库安装包（以及缺少的依赖项）。main