我正在使用 Debian Squeeze，试图更新 automake，然后在配置过程中发现 autoconf 太旧了。尝试安装 autoconf 时，我收到以下信息：
apt-get install autoconf
Reading package lists... Done
Building dependency tree
Reading state information... Done
Package autoconf 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 'autoconf' has no installation candidate
我从 Debian 源列表生成器更新了 sources.list (http://debgen.simplylinux.ch/）
我需要一些帮助来解决这个问题。最终，我尝试安装 smarttools，但由于 automake 而无法安装。
./autogen.sh
You must have at least GNU Automake 1.7 (up to 1.13) installed
in order to bootstrap smartmontools from SVN. Download the
appropriate package for your distribution, or the source tarball
from ftp://ftp.gnu.org/gnu/automake/ .
Also note that support for new Automake series (anything newer
than 1.11) is only added after extensive tests. If you live in
the bleeding edge, you should know what you're doing, mainly how
to test it before the developers. Be patient.
这是 sources.list deb http archive.debian.org/debian oldstable main contrib non-free deb-src http archive.debian.org/debian oldstable main contrib non-free
deb http ftp.debian.org/debian/ squeeze-updates main contrib non-free
deb-src http ftp.debian.org/debian/ squeeze-updates main contrib non-free
deb http security.debian.org/ squeeze/updates main contrib non-free
deb-src http security.debian.org/ squeeze/updates main contrib non-free
我必须删除 :// 协议分隔符才能发布详细信息