Linux 在云服务器上的centos 6.7中安装elastix

我想在我的服务器上安装elastix 2.5

yum install -y elastix

然后我犯了这个错误

Finished Dependency Resolution
Error: Package: 2009020507:asterisk-1.8.20.0-0.x86_64 (iso)
           Requires: libcurl.so.3()(64bit)
           Available: curl-7.15.5-15.el5.x86_64 (iso)
               libcurl.so.3()(64bit)
           Installed: curl-7.19.7-46.el6.x86_64 (@base)
               Not found
Error: Package: 2009020507:asterisk-1.8.20.0-0.x86_64 (iso)
           Requires: librpmio-4.4.so()(64bit)
           Available: rpm-libs-4.4.2.3-31.el5.x86_64 (iso)
               librpmio-4.4.so()(64bit)
           Installed: rpm-libs-4.8.0-47.el6.x86_64 (@base)
               Not found
Error: Package: 1:perl-Archive-Tar-1.39.1-1.el5_5.2.noarch (iso)
           Requires: perl(:MODULE_COMPAT_5.8.8)
           Available: 4:perl-5.8.8-38.el5_8.x86_64 (iso)
               perl(:MODULE_COMPAT_5.8.8)
           Installed: 4:perl-5.10.1-141.el6_7.1.x86_64 (@updates)
               Not found
           Available: 4:perl-5.10.1-141.el6.x86_64 (base)
               Not found
Error: Package: 2009020507:asterisk-1.8.20.0-0.x86_64 (iso)
           Requires: librpm-4.4.so()(64bit)
           Available: rpm-libs-4.4.2.3-31.el5.x86_64 (iso)
               librpm-4.4.so()(64bit)
           Installed: rpm-libs-4.8.0-47.el6.x86_64 (@base)
               Not found
Error: Package: elastix-portknock-0.0.1-0.x86_64 (iso)
           Requires: libpcap.so.0.9.4()(64bit)
           Available: 14:libpcap-0.9.4-15.el5.x86_64 (iso)
               libpcap.so.0.9.4()(64bit)
           Available: 14:libpcap-1.4.0-4.20130826git2dbcaa1.el6.i686 (base)
               Not found
 You could try using --skip-broken to work around the problem
 You could try running: rpm -Va --nofiles --nodigest

似乎错误说明需要降级每个包。但这是非常矛盾的，尤其是在卷曲上。 是否有任何可能的解决方案来克服这个错误或其他方法？我只想在centos 6.7上安装elastix。 有人能帮忙吗？ 提前谢谢