Open Stack

I had installed openstack juno on a controller and three compute nodes 
using packstack. I had to reinstall libpcap on a compute node. This 
erased nova-compute and libvirt packages. How can I reinstall them that 
is how can I reinstall the same versions of these packages. The 
following is the list of packages removed. I want to restore them:

Erasing    : libvirt-1.1.1-29.el7_0.3.x86_64                            
                                                                1/29
   Erasing    : openstack-nova-compute-2014.2.1-1.el7.centos.noarch      
                                                                  2/29
   Erasing    : 1:python-libguestfs-1.22.6-22.el7.centos.0.1.x86_64      
                                                                  3/29
   Erasing    : 1:libguestfs-1.22.6-22.el7.centos.0.1.x86_64             
                                                                  4/29
warning: file /var/run/libguestfs: remove failed: No such file or 
directory
   Erasing    : libvirt-daemon-kvm-1.1.1-29.el7_0.3.x86_64               
                                                                  5/29
   Erasing    : libvirt-daemon-config-network-1.1.1-29.el7_0.3.x86_64    
                                                                  6/29
   Erasing    : libvirt-daemon-config-nwfilter-1.1.1-29.el7_0.3.x86_64   
                                                                  7/29
   Erasing    : 
openstack-ceilometer-compute-2014.2.1-1.el7.centos.noarch                
                                                  8/29
   Erasing    : libvirt-daemon-driver-qemu-1.1.1-29.el7_0.3.x86_64       
                                                                  9/29
   Erasing    : libvirt-daemon-driver-nwfilter-1.1.1-29.el7_0.3.x86_64   
                                                                 10/29
   Erasing    : libvirt-daemon-driver-lxc-1.1.1-29.el7_0.3.x86_64        
                                                                 11/29
   Erasing    : libvirt-daemon-driver-network-1.1.1-29.el7_0.3.x86_64    
                                                                 12/29
   Erasing    : libvirt-python-1.1.1-29.el7_0.3.x86_64                   
                                                                 13/29
   Erasing    : libvirt-daemon-driver-interface-1.1.1-29.el7_0.3.x86_64  
                                                                 14/29
   Erasing    : libvirt-daemon-driver-nodedev-1.1.1-29.el7_0.3.x86_64    
                                                                 15/29
   Erasing    : libvirt-daemon-driver-secret-1.1.1-29.el7_0.3.x86_64     
                                                                 16/29
   Erasing    : libvirt-daemon-driver-storage-1.1.1-29.el7_0.3.x86_64    
                                                                 17/29
   Erasing    : libvirt-daemon-1.1.1-29.el7_0.3.x86_64                   
                                                                 18/29
warning: /etc/sysconfig/libvirtd saved as 
/etc/sysconfig/libvirtd.rpmsave
warning: /etc/libvirt/libvirtd.conf saved as 
/etc/libvirt/libvirtd.conf.rpmsave
   Erasing    : libvirt-client-1.1.1-29.el7_0.3.x86_64                   
                                                                 19/29
warning: /etc/sysconfig/libvirt-guests saved as 
/etc/sysconfig/libvirt-guests.rpmsave
   Erasing    : gnutls-utils-3.1.18-10.el7_0.x86_64                      
                                                                 20/29
   Erasing    : gnutls-dane-3.1.18-10.el7_0.x86_64                       
                                                                 21/29
   Erasing    : unbound-libs-1.4.20-19.el7.x86_64                        
                                                                 22/29
   Erasing    : ldns-1.6.16-7.el7.x86_64                                 
                                                                 23/29
   Erasing    : 2:nmap-ncat-6.40-4.el7.x86_64                            
                                                                 24/29
   Erasing    : 14:tcpdump-4.5.1-2.el7.x86_64                            
                                                                 25/29
   Erasing    : 
1:NetworkManager-tui-0.9.9.1-29.git20140326.4dba720.el7_0.x86_64         
                                                 26/29
   Erasing    : 
1:NetworkManager-0.9.9.1-29.git20140326.4dba720.el7_0.x86_64             
                                                 27/29
   Erasing    : ppp-2.4.5-33.el7.x86_64                                  
                                                                 28/29
   Erasing    : 14:libpcap-1.5.3-3.el7_0.1.x86_64

Please help me with this issue.

Thanks,

Priyanka