当我在Fedora 17上进行软件更新时，我收到以下消息：
There are unfinished transactions remaining. Please run yum-complete-transaction as root. 我按照指示，我得到这个错误：
Error: Trying to remove "yum", which is protected ** Found 9 pre-existing rpmdb problem(s), 'yum check' output follows: 32:bind-libs-9.9.2-7.P2.fc17.x86_64 is a duplicate with 32:bind-libs-9.9.2-5.P1.fc17.x86_64 32:bind-license-9.9.2-7.P2.fc17.noarch is a duplicate with 32:bind-license-9.9.2-5.P1.fc17.noarch firefox-19.0.2-1.fc17.x86_64 has installed conflicts xulrunner(x86-64) > ('0', '19.1', None): xulrunner-20.0-1.fc17.x86_64 1:java-1.7.0-openjdk-1.7.0.17-2.3.8.3.fc17.x86_64 is a duplicate with 1:java-1.7.0-openjdk-1.7.0.9-2.3.8.0.fc17.x86_64 libipa_hbac-1.9.4-1.fc17.x86_64 is a duplicate with libipa_hbac-1.8.6-1.fc17.x86_64 sssd-1.9.4-1.fc17.x86_64 is a duplicate with sssd-1.8.6-1.fc17.x86_64 sssd-client-1.9.4-1.fc17.x86_64 is a duplicate with sssd-client-1.8.6-1.fc17.x86_64 tzdata-java-2013b-2.fc17.noarch is a duplicate with tzdata-java-2013b-1.fc17.noarch xulrunner-20.0-1.fc17.x86_64 is a duplicate with xulrunner-19.0.2-1.fc17.x86_64
如何解决这个问题？
安装yum-utils软件包，然后运行package-cleanup --cleandupes （查看手册页中的其他选项），然后重试。 您可能需要事先更新yum和可能的rpm 。