Fix xen attach disk bug
Fix xen attach disk bug

ohamada/one,hsanjuan/one,ggalancs/one,atodorov-storpool/one,baby-gnu/one,goberle/one,mattthias/one,abelCoronado93/one,Terradue/one,juanmont/one,hsanjuan/one,abelCoronado93/one,spirit03/one,Terradue/one,alvarosimon/one,atodorov-storpool/one,abelCoronado93/one,baby-gnu/one,goberle/one,ggalancs/one,fasrc/one,fasrc/one,dberzano/opennebula-torino,OpenNebula/one,abelCoronado93/one,fasrc/one,abelCoronado93/one,juanmont/one,cloudweavers/one,ohamada/one,unistra/one,mattthias/one,alvarosimon/one,goberle/one,Terradue/one,tuxmea/one,hsanjuan/one,unistra/one,goberle/one,juanmont/one,abelCoronado93/one,Terradue/one,fasrc/one,cloudweavers/one,tuxmea/one,tuxmea/one,baby-gnu/one,baby-gnu/one,ohamada/one,OpenNebula/one,baby-gnu/one,Terradue/one,mattthias/one,ggalancs/one,juanmont/one,ohamada/one,goberle/one,unistra/one,cloudweavers/one,alvarosimon/one,atodorov-storpool/one,cloudweavers/one,hsanjuan/one,tuxmea/one,cloudweavers/one,juanmont/one,baby-gnu/one,dberzano/opennebula-torino,dberzano/opennebula-torino,juanmont/one,OpenNebula/one,fasrc/one,fasrc/one,OpenNebula/one,goberle/one,ohamada/one,dberzano/opennebula-torino,unistra/one,juanmont/one,atodorov-storpool/one,spirit03/one,hsanjuan/one,spirit03/one,fasrc/one,atodorov-storpool/one,baby-gnu/one,ohamada/one,ohamada/one,goberle/one,ggalancs/one,mattthias/one,OpenNebula/one,tuxmea/one,abelCoronado93/one,juanmont/one,ohamada/one,hsanjuan/one,abelCoronado93/one,unistra/one,mattthias/one,atodorov-storpool/one,atodorov-storpool/one,tuxmea/one,mattthias/one,dberzano/opennebula-torino,ggalancs/one,alvarosimon/one,mattthias/one,tuxmea/one,dberzano/opennebula-torino,OpenNebula/one,spirit03/one,Terradue/one,ggalancs/one,mattthias/one,hsanjuan/one,juanmont/one,ggalancs/one,baby-gnu/one,fasrc/one,cloudweavers/one,OpenNebula/one,goberle/one,spirit03/one,cloudweavers/one,cloudweavers/one,ggalancs/one,atodorov-storpool/one,alvarosimon/one,alvarosimon/one,unistra/one,OpenNebula/one,alvarosimon/one,OpenNebula/one,unistra/one,dberzano/opennebula-torino,alvarosimon/one,atodorov-storpool/one,spirit03/one,Terradue/one,hsanjuan/one,spirit03/one,spirit03/one,Terradue/one,unistra/one,tuxmea/one