On Fri, Apr 1, 2011 at 7:11 PM, Masanari Iida <standby24x7@xxxxxxxxx> wrote: > Hello > I have a simple question. > Can I update libvirt RPM while KVM guest OS on RHEL5 is running. > I am still searching for this answer. As far as I have seen on FAQ, restarting libvirtd may not affect the virtual machine. > Will restarting the libvirt daemon stop my virtual machines? > > NO, as of version 0.6.0 (Jan 2009). Versions older than this will kill VMs if the libvirtd daemon is > stopped, so beware. My case was libvirt update from 0.6.3 to 0.8.2 and then restart libvirtd while running the guest os. Regards, Masanari