根据文档，可以从http://ubuntu.kurento.org/pool/main/k/下载旧版本的 KMS 。
这里似乎只有一个版本（6.0.0），即使在安装了所有依赖项之后，由于依赖项的复杂性，服务器也无法运行。似乎没有可能相关的依赖trusty项版本（ http://ubuntu.kurento.org/pool/main/libk/libkmsnice/ ）。gstreamer1.5-kmsnice
无论如何，我宁愿降级到版本 6.1.1，这是我的 AWS 设置上最后一个已知的工作安装，但 6.3.2（除 6.0.0 之外）以下的版本不再可用。
我的问题是：是否有任何支持的官方降级方法？
ubuntu@ec2:~$ apt-cache showpkg kurento-media-server-6.0
Package: kurento-media-server-6.0
Versions:
6.3.3~20160130183418.2.g038c3f9.trusty (/var/lib/apt/lists/ubuntu.kurento.org_dists_trusty-dev_kms6_binary-amd64_Packages) (/var/lib/dpkg/status)
Description Language:
File: /var/lib/apt/lists/ubuntu.kurento.org_dists_trusty-dev_kms6_binary-amd64_Packages
MD5: 4ffd6c93aad3db63d24cb40393e99fc0
6.3.2.trusty (/var/lib/apt/lists/ubuntu.kurento.org_dists_trusty_kms6_binary-amd64_Packages)
Description Language:
File: /var/lib/apt/lists/ubuntu.kurento.org_dists_trusty-dev_kms6_binary-amd64_Packages
MD5: 4ffd6c93aad3db63d24cb40393e99fc0
Reverse Depends:
kurento-server,kurento-media-server-6.0 6.3.2.trusty
kurento-media-server-6.0-dev,kurento-media-server-6.0 6.3.2.trusty
kurento-media-server-6.0-dbg,kurento-media-server-6.0 6.3.2.trusty
kurento-server,kurento-media-server-6.0 6.3.3~20160130183418.2.g038c3f9.trusty
kurento-media-server-6.0-dev,kurento-media-server-6.0 6.3.3~20160130183418.2.g038c3f9.trusty
kurento-media-server-6.0-dbg,kurento-media-server-6.0 6.3.3~20160130183418.2.g038c3f9.trusty
Dependencies:
6.3.3~20160130183418.2.g038c3f9.trusty - kms-core-6.0 (2 6.3.1) kms-jsonrpc-1.0 (0 (null)) kmsjsoncpp (0 (null)) libboost-filesystem1.55.0 (0 (null)) libboost-log1.55.0 (0 (null)) libboost-program-options1.55.0 (0 (null)) libboost-system1.55.0 (0 (null)) libboost-thread1.55.0 (0 (null)) libc6 (2 2.14) libgcc1 (2 1:4.1.1) libglib2.0-0 (2 2.41.1) libglibmm-2.4-1c2a (2 2.36.2) libgstreamer1.5-0 (2 1.7.1.1~20160129140239.197.g1873db8.trusty) libsigc++-2.0-0c2a (2 2.0.2) libssl1.0.0 (2 1.0.0) libstdc++6 (2 4.8.1) binutils (0 (null)) gstreamer1.5-plugins-base (2 1.7.0~0) gstreamer1.5-libav (2 1.7.0~0) gstreamer1.5-plugins-bad (2 1.7.0~0) gstreamer1.5-plugins-good (2 1.7.0~0) gstreamer1.5-plugins-ugly (2 1.7.0~0) kms-elements-6.0 (2 6.3.1) kms-filters-6.0 (2 6.3.0) kurento (0 (null)) kurento (0 (null)) kurento-media-server (0 (null)) kurento (0 (null)) kurento-media-server (0 (null))
6.3.2.trusty - kms-core-6.0 (2 6.3.1) kms-jsonrpc-1.0 (0 (null)) kmsjsoncpp (0 (null)) libboost-filesystem1.55.0 (0 (null)) libboost-log1.55.0 (0 (null)) libboost-program-options1.55.0 (0 (null)) libboost-system1.55.0 (0 (null)) libboost-thread1.55.0 (0 (null)) libc6 (2 2.14) libgcc1 (2 1:4.1.1) libglib2.0-0 (2 2.41.1) libglibmm-2.4-1c2a (2 2.36.2) libgstreamer1.5-0 (2 1.7.1.1~20160128135743.197.g1873db8.trusty) libsigc++-2.0-0c2a (2 2.0.2) libssl1.0.0 (2 1.0.0) libstdc++6 (2 4.8.1) binutils (0 (null)) gstreamer1.5-plugins-base (2 1.7.0~0) gstreamer1.5-libav (2 1.7.0~0) gstreamer1.5-plugins-bad (2 1.7.0~0) gstreamer1.5-plugins-good (2 1.7.0~0) gstreamer1.5-plugins-ugly (2 1.7.0~0) kms-elements-6.0 (2 6.3.1) kms-filters-6.0 (2 6.3.0) kurento (0 (null)) kurento (0 (null)) kurento-media-server (0 (null)) kurento (0 (null)) kurento-media-server (0 (null))
Provides:
6.3.3~20160130183418.2.g038c3f9.trusty -
6.3.2.trusty -
Reverse Provides:
我正在使用 Amazon 的 EC2 运行 Ubuntu 14.04.3 LTS（可信）实例。