所以我试图在最新版本的KUbuntu上安装Passenger（13.10）。 我使用Muon Package Manager使用apache2-mpm-worker软件包安装了Apache2。 这些是我跑的命令。
rvmsudo gem install passenger rvmsudo passenger-install-apache2-module
但我不断收到以下错误：
[Fri Oct 18 15:52:13.227790 2013] [core:warn] [pid 13095] AH00111: Config variable ${APACHE_LOCK_DIR} is not defined [Fri Oct 18 15:52:13.227933 2013] [core:warn] [pid 13095] AH00111: Config variable ${APACHE_PID_FILE} is not defined [Fri Oct 18 15:52:13.227969 2013] [core:warn] [pid 13095] AH00111: Config variable ${APACHE_RUN_USER} is not defined [Fri Oct 18 15:52:13.227991 2013] [core:warn] [pid 13095] AH00111: Config variable ${APACHE_RUN_GROUP} is not defined [Fri Oct 18 15:52:13.228026 2013] [core:warn] [pid 13095] AH00111: Config variable ${APACHE_LOG_DIR} is not defined [Fri Oct 18 15:52:13.231737 2013] [core:warn] [pid 13095:tid 3074562624] AH00111: Config variable ${APACHE_RUN_DIR} is not defined [Fri Oct 18 15:52:13.232760 2013] [core:warn] [pid 13095:tid 3074562624] AH00111: Config variable ${APACHE_LOG_DIR} is not defined [Fri Oct 18 15:52:13.233043 2013] [core:warn] [pid 13095:tid 3074562624] AH00111: Config variable ${APACHE_LOG_DIR} is not defined [Fri Oct 18 15:52:13.233078 2013] [core:warn] [pid 13095:tid 3074562624] AH00111: Config variable ${APACHE_LOG_DIR} is not defined AH00526: Syntax error on line 74 of /etc/apache2/apache2.conf: Invalid Mutex directory in argument file:${APACHE_LOCK_DIR} -------------------------------------------- WARNING: Apache doesn't seem to be compiled with the 'prefork', 'worker' or 'event' MPM Phusion Passenger has only been tested on Apache with the 'prefork', the 'worker' and the 'event' MPM. Your Apache installation is compiled with the '' MPM. We recommend you to abort this installer and to recompile Apache with either the 'prefork', the 'worker' or the 'event' MPM. Press Ctrl-C to abort this installer (recommended). Press Enter if you want to continue with installation anyway.
我运行apache2ctl -V的结果是：
Server version: Apache/2.4.6 (Ubuntu) Server built: Aug 9 2013 14:31:04 Server's Module Magic Number: 20120211:23 Server loaded: APR 1.4.8, APR-UTIL 1.5.2 Compiled using: APR 1.4.8, APR-UTIL 1.5.2 Architecture: 32-bit Server MPM: worker threaded: yes (fixed thread count) forked: yes (variable process count) Server compiled with.... -D APR_HAS_SENDFILE -D APR_HAS_MMAP -D APR_HAVE_IPV6 (IPv4-mapped addresses enabled) -D APR_USE_SYSVSEM_SERIALIZE -D APR_USE_PTHREAD_SERIALIZE -D SINGLE_LISTEN_UNSERIALIZED_ACCEPT -D APR_HAS_OTHER_CHILD -D AP_HAVE_RELIABLE_PIPED_LOGS -D DYNAMIC_MODULE_LIMIT=256 -D HTTPD_ROOT="/etc/apache2" -D SUEXEC_BIN="/usr/lib/apache2/suexec" -D DEFAULT_PIDLOG="/var/run/apache2.pid" -D DEFAULT_SCOREBOARD="logs/apache_runtime_status" -D DEFAULT_ERRORLOG="logs/error_log" -D AP_TYPES_CONFIG_FILE="mime.types" -D SERVER_CONFIG_FILE="apache2.conf"
可以看出，服务器是与工人MPM编译的，为什么乘客抱怨呢？ 我怎么解决上面的错误（警告，真的，但为了安全起见，我不想有任何警告）？
谢谢。
这是由于一些缺less的环境variables。 试着先运行这个：
$ rvmsudo $SHELL # source /etc/apache2/envvars # export HOME=/home/USRNAME
这个脚本设置缺失的variables（相应地改变USRNAME）。
我发现你已经解决了这个问题，但是对于其他人… Passenger现在为最后的ubuntu发行版提供预编译的二进制文件，所以在每次升级时都不需要预先编译passenger-install-apache2-module 。
我遵循这个指示，它为我工作： http : //www.modrails.com/documentation/Users%20guide%20Apache.html#install_on_debian_ubuntu