因今天我也遇到了，就搜索了下，现转载过来。
内核： Linux ubuntu 2.6.38-8-generic #42-Ubuntu SMP Mon Apr 11 03:31:50 UTC 2011 i686 i686 i386 GNU/Linux
系统版本： Ubuntu 11.04 32位
打开http://127.0.0.1 ; 显示成功，但打开 http://127.0.0.1/p.php 出现502错误
/root/lnmp restart
错误信息：root@ubuntu:~/lnmp0.7-full/php-5.2.17# /root/lnmp restart
Manager for LNMP V0.7 , Written by Licess
LNMP is a tool to auto-compile & install Nginx+MySQL+PHP on Linux
This script is a tool to Manage status of lnmp
For more information please visit http://www.lnmp.org [local]1[/local]
Usage: /root/lnmp {start|stop|reload|restart|kill|status}
Stoping LNMP...
Nginx program is stop
PHP-FPM program is not runing!
Shutting down MySQL
. *
MySQL program is stop
Starting LNMP...
Nginx start successfully!
/root/lnmp: 行 46: /usr/local/php/sbin/php-fpm: 没有那个文件或目录
PHP-FPM start successfully!
Starting MySQL
. *
MySQL start successfully!
解决办法：
（打开 /root/lnmp0.7-full/ubuntu.sh找到 echo "========================= php + php extensions install ==================="按里面的代码执行的。从 tar zxvf php-5.2.17.tar.gz 开始执行的，下面有具体的）
apt-get install libjpeg62 libjpeg62-dev libjpeg-dev
ln -s /usr/lib/i386-linux-gnu/libpng* /usr/lib/
ln -s /usr/lib/i386-linux-gnu/libjpeg* /usr/lib/
cd /root/lnmp0.7-full/ 或者 cd cd /root/lnmp0.7/
tar zxvf php-5.2.17.tar.gz
gzip -cd php-5.2.17-fpm-0.5.14.diff.gz | patch -d php-5.2.17 -p1
cd php-5.2.17/
./buildconf –force
./configure –prefix=/usr/local/php –with-config-file-path=/usr/local/php/etc –with-mysql=/usr/local/mysql –with-mysqli=/usr/local/mysql/bin/mysql_config –with-iconv-dir –with-freetype-dir –with-jpeg-dir –with-png-dir –with-zlib –with-libxml-dir=/usr –enable-xml –enable-discard-path –enable-magic-quotes –enable-safe-mode –enable-bcmath –enable-shmop –enable-sysvsem –enable-inline-optimization –with-curl –with-curlwrappers –enable-mbregex –enable-fastcgi –enable-fpm –enable-force-cgi-redirect –enable-mbstring –with-mcrypt –enable-ftp –with-gd –enable-gd-native-ttf –with-openssl –with-mhash –enable-pcntl –enable-sockets –with-xmlrpc –enable-zip –enable-soap –without-pear –with-gettext –with-mime-magic
make ZEND_EXTRA_LIBS='-liconv'
make install
这个问题我在vpse论坛上问过了，上面有关于我如何解决的：
http://bbs.vpser.net/thread-3055-1-1.html
不过我在编译的时候出现了错误configure: error: can only configure for one host and one target at a time，原来是因为wp的原因而使./configure 这段代码出现的错误，所以到了上面的vpser论坛上找到了无错的代码
./configure --prefix=/usr/local/php --with-config-file-path=/usr/local/php/etc --with-mysql=/usr/local/mysql --with-mysqli=/usr/local/mysql/bin/mysql_config --with-iconv-dir --with-freetype-dir --with-jpeg-dir --with-png-dir --with-zlib --with-libxml-dir=/usr --enable-xml --enable-discard-path --enable-magic-quotes --enable-safe-mode --enable-bcmath --enable-shmop --enable-sysvsem --enable-inline-optimization --with-curl --with-curlwrappers --enable-mbregex --enable-fastcgi --enable-fpm --enable-force-cgi-redirect --enable-mbstring --with-mcrypt --enable-ftp --with-gd --enable-gd-native-ttf --with-openssl --with-mhash --enable-pcntl --enable-sockets --with-xmlrpc --enable-zip --enable-soap --without-pear --with-gettext --with-mime-magic