显然，Fedorayum具有降级的能力。我发现这很有用，因为他们很讨厌他们认为需要在稳定的升级版本中 破坏NetworkManager。有多种方式。
如何降级NetworkManager及其相关的所有内容？我可以yum反向进行工作吗？
[root@x200s NetworkManager]# yum downgrade NetworkManager-0.8.999-2.git20110509.fc15.i686
Loaded plugins: langpacks, presto, refresh-packagekit
Setting up Downgrade Process
Resolving Dependencies
--> Running transaction check
---> Package NetworkManager.i686 1:0.8.999-2.git20110509.fc15 will be a downgrade
--> Processing Dependency: NetworkManager-glib = 1:0.8.999-2.git20110509.fc15 for package: 1:NetworkManager-0.8.999-2.git20110509.fc15.i686
---> Package NetworkManager.i686 1:0.8.999-3.git20110526.fc15 will be erased
--> Finished Dependency Resolution
Error: Package: 1:NetworkManager-gnome-0.8.999-3.git20110526.fc15.i686 (@updates)
Requires: NetworkManager = 1:0.8.999-3.git20110526.fc15
Removing: 1:NetworkManager-0.8.999-3.git20110526.fc15.i686 (@updates)
NetworkManager = 1:0.8.999-3.git20110526.fc15
Downgraded By: 1:NetworkManager-0.8.999-2.git20110509.fc15.i686 (fedora)
NetworkManager = 1:0.8.999-2.git20110509.fc15
Error: Package: 1:NetworkManager-0.8.999-2.git20110509.fc15.i686 (fedora)
Requires: NetworkManager-glib = 1:0.8.999-2.git20110509.fc15
Installed: 1:NetworkManager-glib-0.8.999-3.git20110526.fc15.i686 (@updates)
NetworkManager-glib = 1:0.8.999-3.git20110526.fc15
Available: 1:NetworkManager-glib-0.8.999-2.git20110509.fc15.i686 (fedora)
NetworkManager-glib = 1:0.8.999-2.git20110509.fc15
You could try using --skip-broken to work around the problem
You could try running: rpm -Va --nofiles --nodigest
有没有一种方法可以在不独立执行每个程序包的情况下降级？
您可以使用：
yum downgrade NetworkManager NetworkManager-gnome NetworkManager-glib
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