我最初在安装服务器时安装了 LAMP 包。我花了很长时间才让 Web 服务器工作起来，然后我发现 PHP 并没有作为包的一部分安装，这很奇怪，因为它本应如此。我还尝试安装 SSH 服务器，以便我可以使用 Putty 登录。每次我尝试安装任何东西时，我都会得到以下信息：-
jim@Unseen:~$ sudo apt-get -f install php libapache2-mod-php php-mcrypt php-mysq
l
Reading package lists... Done
Building dependency tree
Reading state information... Done
libapache2-mod-php is already the newest version (1:7.0+35ubuntu6.1).
php-mysql is already the newest version (1:7.0+35ubuntu6.1).
The following additional packages will be installed:
libmcrypt4 php7.0 php7.0-mcrypt
Suggested packages:
libmcrypt-dev mcrypt
The following NEW packages will be installed
libmcrypt4 php php-mcrypt php7.0 php7.0-mcrypt
0 to upgrade, 5 to newly install, 0 to remove and 0 not to upgrade.
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E: Waited for /usr/sbin/dpkg-preconfigure --apt || true but it wasn't there
E: Failure running script /usr/sbin/dpkg-preconfigure --apt || true
我试过 apt-get clean。我试过标准 apt-get。我运行过 apt-get update。我试过的所有方法似乎都不起作用。有人能给我提点建议吗？我是 ubuntu 新手，用起来很沮丧。提前谢谢
编辑：
我尝试了类似帖子中建议的修复方法，该帖子涉及 14.0*，但我的服务器是 16.04.4:-
sudo sh -c "echo 'DPkg::Pre-Install-Pkgs {"/usr/sbin/dpkg-preconfigure --apt || true";};' >> /etc/apt/apt.conf.d/70debconf"
这不起作用并报告 70debconf 不存在。
编辑2
我按照建议将命令字符串更正为：-
sudo sh -c "echo 'DPkg::Pre-Install-Pkgs {\"/usr/sbin/dpkg-preconf
igure --apt || true\";};' >> /etc/apt/apt.conf.d/70debconf"
它返回了一个提示，但没有消息，所以我假设它起作用了
然后我运行了以下命令：-
sudo apt-get install openssh-server
并返回与之前完全相同的结果：-
Reading package lists... Done
Building dependency tree
Reading state information... Done
The following additional packages will be installed:
ncurses-term openssh-sftp-server python3-requests python3-urllib3
ssh-import-id
Suggested packages:
ssh-askpass rssh molly-guard monkeysphere python3-ndg-httpsclient
python3-openssl python3-pyasn1
The following NEW packages will be installed
ncurses-term openssh-server openssh-sftp-server python3-requests
python3-urllib3 ssh-import-id
0 to upgrade, 6 to newly install, 0 to remove and 0 not to upgrade.
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Preconfiguring packages ...
E: Waited for /usr/sbin/dpkg-preconfigure --apt || true but it wasn't there
E: Failure running script /usr/sbin/dpkg-preconfigure --apt || true
编辑3
在得到一些极好的帮助后，我突然想到了一个主意。在这些问题出现之前，我安装了 Webmin，以便从我的桌面快速远程访问服务器。我尝试通过 webmin 安装 Openssh-server，令我惊讶的是，它成功了。所以结论似乎是 webmin 以某种方式干扰了服务器上的本机功能。我确信这不应该发生，不知道我是否应该报告。
答案1
初始答案有问题，内部双引号需要转义
sudo sh -c "echo 'DPkg::Pre-Install-Pkgs {\"/usr/sbin/dpkg-preconfigure --apt || true\";};' >> /etc/apt/apt.conf.d/70debconf"
我可以确认 /etc/apt/apt.conf.d/70debconf 在我的 Ubuntu 16.04 和 Ubuntu 17.10 机器上都存在。在我的 Ubuntu 16.04 机器上，此文件的内容如下
// Pre-configure all packages with debconf before they are installed.
// If you don't like it, comment it out.
DPkg::Pre-Install-Pkgs {"/usr/sbin/dpkg-preconfigure --apt || true";};