PHP5.5升级后缺lessphp5-fpm

我刚在Ubuntu 12.04上更新了我的PHP

现在，所有的奇怪，我做了一个简单的phpinfo.php在我的服务器上，然后这502坏网关开始出现。 我检查/etc/nginx/sites-available/default nginxconfiguration文件，看起来一切正常：

 server { listen 80 default_server; listen [::]:80 default_server ipv6only=on; root /usr/share/nginx/html; index index.php index.html index.htm; # Make site accessible from http://localhost/ server_name localhost; location / { # First attempt to serve request as file, then # as directory, then fall back to displaying a 404. try_files $uri $uri/ /index.html; # Uncomment to enable naxsi on this location # include /etc/nginx/naxsi.rules } location /doc/ { alias /usr/share/doc/; autoindex on; allow 127.0.0.1; allow ::1; deny all; } # Only for nginx-naxsi used with nginx-naxsi-ui : process denied requests #location /RequestDenied { # proxy_pass http://127.0.0.1:8080; #} #error_page 404 /404.html; # redirect server error pages to the static page /50x.html # #error_page 500 502 503 504 /50x.html; #location = /50x.html { # root /usr/share/nginx/html; #} # pass the PHP scripts to FastCGI server listening on 127.0.0.1:9000 # location ~ \.php$ { fastcgi_split_path_info ^(.+\.php)(/.+)$; # NOTE: You should have "cgi.fix_pathinfo = 0;" in php.ini # With php5-cgi alone: # fastcgi_pass 127.0.0.1:9000; # With php5-fpm: fastcgi_pass unix:/var/run/php5-fpm.sock; fastcgi_index index.php; include fastcgi_params; } # deny access to .htaccess files, if Apache's document root # concurs with nginx's one # location ~ /\.ht { deny all; } } 

不知道是什么问题，我的PHP是好的，我没有升级。

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编辑

只是注意到，我去到/var/run/php5-fpm.sock的目录，但没有看到在那里的任何php5-fpm.sock 。 这是原因吗？

 ps -ef | grep php 

 dpkg -s php5-fpm 

 apt-get install php5-fpm 

 php5-fpm : Depends: libsystemd-daemon0 (>= 31) but it is not installable