安装curl-devel时依赖性问题

我想运行passenger-install-apache2-module所以我可以在CentOS 5.8上安装Redmine，但是passenger-install-apache2-module告诉我需要Curl development headers with SSL support ，它告诉我可以使用yum install curl-devel ，但是，当我运行时，我得到以下结果：

 Loaded plugins: fastestmirror, priorities, protectbase Loading mirror speeds from cached hostfile * base: ftp.pbone.net * extras: ftp.pbone.net * remi: remi-mirror.dedipower.com * updates: ftp.pbone.net 120 packages excluded due to repository priority protections 0 packages excluded due to repository protections Setting up Install Process Resolving Dependencies --> Running transaction check ---> Package curl-devel.i386 0:7.15.5-15.el5 set to be updated --> Processing Dependency: curl = 7.15.5-15.el5 for package: curl-devel --> Finished Dependency Resolution curl-devel-7.15.5-15.el5.i386 from base has depsolving problems --> Missing Dependency: curl = 7.15.5-15.el5 is needed by package curl-devel-7.15.5-15.el5.i386 (base) Error: Missing Dependency: curl = 7.15.5-15.el5 is needed by package curl-devel-7.15.5-15.el5.i386 (base) You could try using --skip-broken to work around the problem You could try running: package-cleanup --problems package-cleanup --dupes rpm -Va --nofiles --nodigest 

现在我用Linux的东西不是很了不起，但是，我想这告诉我，如果我想安装curl-devel（有意义），我需要curl版本。 但是我知道我有curl安装，而且我会curl -V来testing它是否实际安装，这给了我：

 curl 7.21.7 (i686-redhat-linux-gnu) libcurl/7.21.7 OpenSSL/0.9.8b zlib/1.2.3 libidn/0.6.5 libssh2/1.2.7 Protocols: dict file ftp ftps gopher http https imap imaps ldap ldaps pop3 pop3s rtsp scp sftp smtp smtps telnet tftp Features: AsynchDNS GSS-Negotiate IDN IPv6 Largefile NTLM SSL libz 

所以我认为问题是版本的差异，但是，我不知道从哪里去。

所以我的问题是，如何正确安装curl-devel？

• CentOS 6：安装.el5 rpms？
• CentOS上（仅限主机）虚拟networking适配器的ifcfg文件在哪里？
• 服务器内存不足
• 未findNginx，Uwsgi和Django应用程序
• sftp并发连接

顺便说一句：我确实尝试了什么yum告诉我试试最后：

  You could try using --skip-broken to work around the problem You could try running: package-cleanup --problems package-cleanup --dupes rpm -Va --nofiles --nodigest