search for: guestfs_attach

...it can talk to, it can simply configure its VM to point at the libguestfs appliance image. Then tell the libguestfs API to attach to this pre-running VM via whatever chardev channel libvirt configured. IIUC, this could be a change such that instead of: guestfs_launch(h); the app could do: guestfs_attach(h, "/var/run/libvirt-tck/virtio-serial-guestfs.sock"); But perhaps also allow query of the expected kernel/initrd, so apps don't have to hardcode those location vmlinuz = guestfs_appliance_kernel(h); initrd = guestfs_appliance_initrd(h); Regards, Daniel -- |: Red Hat, Engineer...