Description of problem:

# yum -y update
Loaded plugins: langpacks, presto, refresh-packagekit
rpmfusion-free-updates                                                                                       | 3.3 kB     00:00     
Setting up Update Process
Resolving Dependencies
--> Running transaction check
---> Package rpmfusion-free-release.noarch 0:12-3 will be updated
---> Package rpmfusion-free-release.noarch 0:15-0.1 will be an update
--> Finished Dependency Resolution

Dependencies Resolved

====================================================================================================================================
 Package                                  Arch                     Version                   Repository                        Size
====================================================================================================================================
Updating:
 rpmfusion-free-release                   noarch                   15-0.1                    rpmfusion-free                    13 k

Transaction Summary
====================================================================================================================================
Upgrade       1 Package(s)

Total size: 13 k
Downloading Packages:
경고: rpmts_HdrFromFdno: Header V3 RSA/SHA256 Signature, key ID 00a4d52b: NOKEY
Retrieving key from file:///etc/pki/rpm-gpg/RPM-GPG-KEY-rpmfusion-free-fedora-15-x86_64


GPG key retrieval failed: [Errno 14] Could not open/read file:///etc/pki/rpm-gpg/RPM-GPG-KEY-rpmfusion-free-fedora-15-x86_64


Version-Release number of selected component (if applicable):
15 beta