x86_64 RPM が重複してインストールされているため、yum が 32bit RPM に対して Transaction Check Error を出力します

Issue

• yum update または yum install を実行すると、以下のような Transaction Check Error が生成されます。

  file /usr/include/libdevmapper-event.h from install of device-mapper-1.02.67-2.el5.i386 conflicts with file from package device-mapper-1.02.55-2.el5.x86_64
  file /usr/include/libdevmapper.h from install of device-mapper-1.02.67-2.el5.i386 conflicts with file from package device-mapper-1.02.55-2.el5.x86_64
  file /usr/share/man/man8/dmeventd.8.gz from install of device-mapper-1.02.67-2.el5.i386 conflicts with file from package device-mapper-1.02.55-2.el5.x86_64
  file /usr/share/man/man8/dmsetup.8.gz from install of device-mapper-1.02.67-2.el5.i386 conflicts with file from package device-mapper-1.02.55-2.el5.x86_64