我正在尝试从nginx.org上的最新版本安装Nginx。但是，最新的软件包没有find：
$ apt-get install nginx Reading package lists... Done Building dependency tree Reading state information... Done nginx is already the newest version.a 0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded. 它看起来像Apt可以看到包，但不select它：
$ apt-cache policy nginx nginx: Installed: 1.2.1-2.2+wheezy3 Candidate: 1.2.1-2.2+wheezy3 Version table: 1.6.2-2 0 300 http://ftp.nl.debian.org/debian/ sid/main amd64 Packages 1.6.2-1 0 300 http://ftp.nl.debian.org/debian/ sid/main amd64 Packages 400 http://ftp.nl.debian.org/debian/ testing/main amd64 Packages 1.6.2-1~wheezy 0 ## <<-- WANT THIS ONE 800 http://nginx.org/packages/debian/ wheezy/nginx amd64 Packages *** 1.2.1-2.2+wheezy3 0 900 http://security.debian.org/ wheezy/updates/main amd64 Packages 100 /var/lib/dpkg/status 1.2.1-2.2+wheezy2 0 900 http://ftp.nl.debian.org/debian/ wheezy/main amd64 Packages
在/etc/apt/sources.list.d/nginx.list ：
deb http://nginx.org/packages/debian/ wheezy nginx deb-src http://nginx.org/packages/debian/ wheezy nginx
这可能与我的apt-preferences有关吗？
在/etc/apt/preferences.d/base ：
# Install stable unless installed version is more recent. Package: * Pin: release o=Debian,a=stable Pin-Priority: 900 # Allow to install testing, unless there is a stable release. Package: * Pin: release o=Debian,a=testing Pin-Priority: 400 # Allow to install unstable, unless there is a stable release Package: * Pin: release o=Debian,a=unstable Pin-Priority: 300 # Never install other packages from Debian Package: * Pin: release o=Debian Pin-Priority: -1
在/etc/apt/preferences.d/nginx ：
# Install Nginx unless installed version is more recent. Package: * Pin: release o=nginx Pin-Priority: 800