I did live migration , HDD image on NFS, cd image on NFS, NFS is shared , VM migrated, but can't start Syslog message is:
proxmoxtwo pvedaemon[134104]: start failed: command '/usr/bin/kvm -id 104 -chardev 'socket,id=qmp,path=/var/run/qemu-server/104.qmp,server,nowait' -mon 'chardev=qmp,mode=control' -vnc unix:/var/run/qemu-server/104.vnc,x509,password -pidfile /var/run/qemu-server/104.pid -daemonize -name ubu -smp 'sockets=1,cores=1' -nodefaults -boot 'menu=on' -vga cirrus -k en-us -m 1024 -cpuunits 1000 -device 'piix3-usb-uhci,id=uhci,bus=pci.0,addr=0x1.0x2' -device 'usb-tablet,id=tablet,bus=uhci.0,port=1' -device 'virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x3' -drive 'file=/mnt/pve/nfs/template/iso/ubuntu-12.10-desktop-amd64.iso,if=none,id=drive-ide2,media=cdrom,aio=native' -device 'ide-cd,bus=ide.1,unit=0,drive=drive-ide2,id=ide2,bootindex=200' -device 'ahci,id=ahci0,multifunction=on,bus=pci.0,addr=0x7' -drive 'file=/mnt/pve/nfs/images/104/vm-104-disk-1.qcow2,if=none,id=drive-sata0,format=qcow2,aio=native,cache=none' -device 'ide-drive,bus=ahci0.0,drive=drive-sata0,id=sata0,bootindex=100' -netdev 'type=user,id=net0,hostname=ubu' -device 'rtl8139,mac=FE:CF:55:9A:25:7A,netdev=net0,bus=pci.0,addr=0x12,id=net0,bootindex=300'' failed: exit code 1