求助：yum问题

Blacking

我修改了/etc/yum.conff文件
内容如下：
[main]
cachedir=/var/cache/yum
keepcache=0
debuglevel=2
logfile=/var/log/yum.log
pkgpolicy=newest
distroverpkg=redhat-release
tolerant=1
exactarch=1
obsoletes=1
gpgcheck=1
plugins=1
metadata_expire=1800

# PUT YOUR REPOS HERE OR IN separate files named file.repo
# in /etc/yum.repos.d

[extras]
name=Fedora Extras $releasever - $basearch
baseurl=ftp://ftp3.tsinghua.edu.cn/mirror/download.fedora.redhat.com/pub/fedora/linux/extras/6/i386
enabled=1

[updates]
name=Fedora Core $releasever - $basearch - Updates
baseurl=ftp://ftp3.tsinghua.edu.cn/mirror/download.fedora.redhat.com/pub/fedora/linux/core/updates/6/i386
enabled=1
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-fedora

[core]
name=Fedora Core $releasever - $basearch
baseurl=ftp://ftp3.tsinghua.edu.cn/mirror/download.fedora.redhat.com/pub/fedora/linux/core/6/i386/os
enable=1
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-fedora file:///etc/pki/rpm-gpg/RPM-GPG-KEY

然后想挂NTFS盘
＃yum install ntfs-3g
提示：
Total download size: 281 k
Is this ok [y/N]: y
Downloading Packages:
warning: rpmts_HdrFromFdno: Header V3 DSA signature: NOKEY, key ID 1ac70ce6


Public key for fuse-2.6.3-2.fc6.i386.rpm is not installed


我安装的是FC6，
网上收到的方法：
rpm --import /usr/share/doc/fedora-release-6/RPM-GPG-KEY*
我把上一句4的地方改为6了，但是没有那个文件
error: /usr/share/doc/fedora-release-6/RPM-GPG-KEY*: import read failed(-1).

初学，请指教解决方法

Blacking

高手帮帮忙啊   
就是这个
warning: rpmts_HdrFromFdno: Header V3 DSA signature: NOKEY, key ID 1ac70ce6
不知道是怎么回事

Blacking

问题已经解决
rpm --import /etc/pki/rpm-gpg/RPM-GPG-KEY*