Another separate thread for a slightly separate issue. For some reason, hotplugging disks does not work for me. I built my guest with ubuntu's vmbuilder. It's Precise, virtual. I have acpiphp in my /etc/modules file: $ lsmod Module Size Used by psmouse 97443 0 serio_raw 13211 0 virtio_balloon 13108 0 acpiphp 24231 0 floppy 70365 0 hotplug_pci seems to be compiled into the kernel: $ grep HOTPLUG_PCI /boot/config-3.2.0-32-virtual CONFIG_HOTPLUG_PCI_PCIE=y CONFIG_HOTPLUG_PCI=y CONFIG_HOTPLUG_PCI_FAKE=m CONFIG_HOTPLUG_PCI_ACPI=m CONFIG_HOTPLUG_PCI_ACPI_IBM=m CONFIG_HOTPLUG_PCI_CPCI=y CONFIG_HOTPLUG_PCI_CPCI_ZT5550=m CONFIG_HOTPLUG_PCI_CPCI_GENERIC=m CONFIG_HOTPLUG_PCI_SHPC=m But when I attach a disk, absolutely nothing happens in the guest. No messages in the logs, no change to /proc/partitions, no new device nodes. When I reboot, the disk appears. Any ideas? Thanks, Douglas