WARNING (XendDomainInfo: 262) No vm path in store for existing domain 0 resolves the following ERROR when installing XEN in THE RHEL-5.8: [plain] error post operation failed: xend_post: error from xen daemon: (xend. err 'device 0 (vif) cocould not be connected. hotplug scripts not working. ') domain installation does not seem successful. In this case, you can run 'virsh start vm02' to restart your domain. Otherwise, re-start the installation. Error post operation failed: xend_post: ERROR from the xen daemon :( xend. err 'device 0 (vif) cocould not be connected. hotplug scripts not working. ') Traceback (most recent call last): File "/usr/sbin/virt-install", line 895, in? Main () File "/usr/sbin/virt-install", line 757, in main start_time, guest. start_install) File "/usr/sbin/virt-install", line 819, in do_install dom = install_func (conscb, progresscb, wait = (not wait )) file "/usr/lib/python2.4/site-packages/virtinst/Guest. py ", line 541, in start_install return self. _ do_install (consolecb, meter, removeOld, wait) File "/usr/lib/python2.4/site-packages/virtinst/Guest. py ", line 633, in _ do_install self. domain = self. conn. createLinux (install_xml, 0) File "/usr/lib/python2.4/site-packages/libvirt. py ", line 1277, in createLinux if ret is None: raise libvirtError ('virdomaincreatelinux () failed', conn = self) libvirtError: POST operation failed: xend_post: error from xen daemon: (xend. err 'device 0 (vif) cocould not be connected. hotplug scripts not working. ') to/var/log/xen/xend. log query and discovery: WARNING (XendDomainInfo: 262) No vm path in store for existing domain 0 solution: ① check the xendomains status first: service xendomains stop/status/start ② if it is stopped and cannot be started manually, You can first touch/var/lock/subsys/xendomains and then run virt-install smoothly