clamavをupdate（CentOS6)

epelでインストールしていて、いつもは使わないようにenable=0にしているので、
明示的にepelを使用するようにして実行。
※ちなみに通常リポジトリと他のリポジトリに同じ名前のパッケージがある場合、どのリポジトリでインストールしたのか判別する方法はあるだろうか。

# yum --enablerepo=epel update clamav
Loaded plugins: fastestmirror
Loading mirror speeds from cached hostfile
 * base: ftp.cs.pu.edu.tw
 * extras: ftp.cs.pu.edu.tw
 * updates: mirror01.idc.hinet.net
Setting up Update Process
Resolving Dependencies
--> Running transaction check
---> Package clamav.x86_64 0:0.97.3-3.el6 will be updated
--> Processing Dependency: clamav = 0.97.3-3.el6 for package: clamd-0.97.3-3.el6                        .x86_64
---> Package clamav.x86_64 0:0.97.5-1.el6 will be an update
--> Processing Dependency: clamav-db = 0.97.5-1.el6 for package: clamav-0.97.5-1                        .el6.x86_64
--> Running transaction check
---> Package clamav-db.x86_64 0:0.97.3-3.el6 will be updated
---> Package clamav-db.x86_64 0:0.97.5-1.el6 will be an update
---> Package clamd.x86_64 0:0.97.3-3.el6 will be updated
---> Package clamd.x86_64 0:0.97.5-1.el6 will be an update
--> Finished Dependency Resolution
 
Dependencies Resolved
 
================================================================================
 Package            Arch            Version                 Repository     Size
================================================================================
Updating:
 clamav             x86_64          0.97.5-1.el6            epel           10 M
Updating for dependencies:
 clamav-db          x86_64          0.97.5-1.el6            epel           34 M
 clamd              x86_64          0.97.5-1.el6            epel          131 k
 
Transaction Summary
================================================================================
Upgrade       3 Package(s)
 
Total download size: 45 M
Is this ok [y/N]: y
Downloading Packages:
(1/3): clamav-0.97.5-1.el6.x86_64.rpm                    |  10 MB     00:03
(2/3): clamav-db-0.97.5-1.el6.x86_64.rpm                 |  34 MB     00:12
(3/3): clamd-0.97.5-1.el6.x86_64.rpm                     | 131 kB     00:00
--------------------------------------------------------------------------------
Total                                           2.6 MB/s |  45 MB     00:17
Running rpm_check_debug
Running Transaction Test
Transaction Test Succeeded
Running Transaction
  Updating   : clamav-db-0.97.5-1.el6.x86_64                                1/6
  Updating   : clamav-0.97.5-1.el6.x86_64                                   2/6
  Updating   : clamd-0.97.5-1.el6.x86_64                                    3/6
  Cleanup    : clamd-0.97.3-3.el6.x86_64                                    4/6
  Cleanup    : clamav-0.97.3-3.el6.x86_64                                   5/6
  Cleanup    : clamav-db-0.97.3-3.el6.x86_64                                6/6
  Verifying  : clamav-0.97.5-1.el6.x86_64                                   1/6
  Verifying  : clamd-0.97.5-1.el6.x86_64                                    2/6
  Verifying  : clamav-db-0.97.5-1.el6.x86_64                                3/6
  Verifying  : clamav-db-0.97.3-3.el6.x86_64                                4/6
  Verifying  : clamd-0.97.3-3.el6.x86_64                                    5/6
  Verifying  : clamav-0.97.3-3.el6.x86_64                                   6/6
 
Updated:
  clamav.x86_64 0:0.97.5-1.el6
 
Dependency Updated:
  clamav-db.x86_64 0:0.97.5-1.el6          clamd.x86_64 0:0.97.5-1.el6
 
Complete!