Thank you very much. For example, if at first I install an OS in a virtual machine from NETWORK, then I modify the boot option from NETWORK to HD online, at last I reboot the virtual machine. I hope it can boot from HD now. Can per-device boot indexes work on this situation? If yes, how does it work? If no, can I try to make a patch to set boot indexes online (maybe play with the QEMU command "boot_set")? > -----Original Message----- > From: Jiri Denemark [mailto:jdenemar@xxxxxxxxxx] > Sent: Monday, March 03, 2014 9:31 PM > To: Daniel P. Berrange > Cc: Wangyufei (James); libvir-list@xxxxxxxxxx; Moyuxiang; Zhaoyanbin (A) > Subject: Re: [Question] Will we support to set boot order online? > > On Mon, Mar 03, 2014 at 09:58:40 +0000, Daniel Berrange wrote: > > On Mon, Mar 03, 2014 at 08:22:13AM +0000, Wangyufei (James) wrote: > > > Hello, > > > I find that QEMU supports to set boot(QMP command "boot_set") > order > > > online, namely the virtual machine can be reboot in appointed order, > > > but libvirt had no corresponding interface. So, I want to know if libvirt > > > intend to support to set boot order online. If the answer is yes, I'll > > > try to apply the patch. If no, why? > > > > AFAIK, no one has looked at this. > > > > NB, this will only work for guests actually using the old style boot > > order. Any guests using per-device boot indexes for ordering won't > > work with this command. > > Hmm, looks like it's quite useless because libvirt uses per-device boot > indexes whenever it is possible even if the domain XML used the old way > of specifying boot order. Thus, it's very likely any domain running in a > QEMU which is not ancient will be using per-device boot order. > > Jirka -- libvir-list mailing list libvir-list@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/libvir-list