Hi All, As following the CEPH online document, I tried to install CEPH on centos 6.3: The step: ADD CEPH I cannot find centos distro, so I used el6. when I reach the "INTSALL VIRTUALIZATION FOR BLOCK DEVICE" step, I got: Error: Package: 2:qemu-kvm-0.12.1.2-2.415.el6.3ceph.x86_64 (ceph-extras) Requires: libusbredirparser.so.1()(64bit) Error: Package: 2:qemu-img-0.12.1.2-2.415.el6.3ceph.x86_64 (ceph-extras) Requires: libusbredirparser.so.1()(64bit) Error: Package: 2:qemu-kvm-0.12.1.2-2.415.el6.3ceph.x86_64 (ceph-extras) Requires: libspice-server.so.1(SPICE_SERVER_0.11.2)(64bit) Error: Package: 2:qemu-kvm-0.12.1.2-2.415.el6.3ceph.x86_64 (ceph-extras) Requires: libspice-server.so.1(SPICE_SERVER_0.12.4)(64bit) Error: Package: 2:qemu-kvm-0.12.1.2-2.415.el6.3ceph.x86_64 (ceph-extras) Requires: seabios >= 0.6.1.2-20.el6 Available: seabios-0.6.1.2-19.el6.x86_64 (qa_os_centos6.3_64) seabios = 0.6.1.2-19.el6 Error: Package: 2:qemu-kvm-0.12.1.2-2.415.el6.3ceph.x86_64 (ceph-extras) Would you please tell me how to resolve the issue? Best Regards, Jack -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.ceph.com/pipermail/ceph-users-ceph.com/attachments/20140507/3428a531/attachment.htm>