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7.10. System Tools

7.10.1. Yum kernel handling plugin

By default Fedora includes and enables a yum plugin package yum-installonlyn. This plugin retains the latest two kernels, including the one running, when you perform updates on your system. To tune this feature to retain more or fewer kernels, or disable it entirely, edit the /etc/yum/pluginconf.d/installonlyn.conf file.