FC7中安装YUM源提示pubic key not installed

iven12

刚装好的FC7，用YUM安装软件提示：
Total download size: 13 M
Is this ok [y/N]: y
Downloading Packages:
(1/2): alsa-oss-libs-1.0. 100% |=========================|  29 kB    00:01     
(2/2): alsa-oss-1.0.12-4. 100% |=========================|  11 kB    00:00     
warning: rpmts_HdrFromFdno: Header V3 DSA signature: NOKEY, key ID cfda5baf


Public key for RealPlayer-10.0.8-1.fc7.fcn.y1.i386.rpm is not installed



安装EVA时也是提示key not install ......

lpw

1. yum localinstall RealPlayer-10.0.8-1.fc7.fcn.y1.i386.rpm --nogpgcheck

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