Manao ahoana, Hello, Bonjour, I installed a Windows (XP and 2003) guest using one partition as hard drive. I used: sudo virt-install --connect qemu:///system \ --name win2003-01 \ --ram 1024 \ --keymap=fr \ --disk path=/dev/lvm0/win2003-01 \ --cdrom=/home/mihamina/Windows_2003_Server.iso \ --os-type windows \ --os-variant=win2k3 \ --noapic \ --noacpi \ --network=bridge:br0 \ --accelerate \ --vnc \ --force And this works fine. Really fine. The disk section in the definition: <disk type='block' device='disk'> <source dev='/dev/lvm0/win2003-01'/> <target dev='hda' bus='ide'/> </disk> After installation, people asked me to add another hard drive to this installation, and then, I added another "disk" in the definition: <disk type='block' device='disk'> <source dev='/dev/lvm0/win2003-01'/> <target dev='hda' bus='ide'/> </disk> <disk type='block' device='disk'> <source dev='/dev/lvm0/win2003-01-a'/> <target dev='hdb' bus='ide'/> </disk> I destroyed + undefined + defined + started the VM and the definition is OK (dumpxml), but the Windows guest doesnt see any new hard drive. I already tried with replacing "ide" with "virtio", no new hard drive yet. This is my configuration: mihamina@kvm-lxc-02:~$ dpkg -l | grep "virt" ii kvm 72+dfsg-5~lenny5 Full virtualization on x86 hardware ii libvirt-bin 0.4.6-10 the programs for the libvirt library ii libvirt0 0.4.6-10 library for interfacing with different virtualization systems ii python-libvirt 0.4.6-10 libvirt Python bindings ii virt-manager 0.6.0-6 desktop application for managing virtual machines ii virt-viewer 0.0.3-2 Displaying the graphical console of a virtual machine ii virtinst 0.400.0-7 Programs to create and clone virtual machines How to make, with this, new hard drive recognized by the Windows guest? Misaotra, Thanks, Merci. -- Architecte Informatique chez Blueline/Gulfsat: Administration Systeme, Recherche & Developpement +261 34 56 000 19