On Tue, Feb 16, 2021 at 09:51:52AM +0100, Michal Privoznik wrote: > On 2/12/21 2:10 AM, Marcin Struzak wrote: > > Hello-- > > > > I'm planning on upgrading the OS on my host machine by doing manual > > re-installation, which will trigger an upgrade of libvirt from 1.1.3 to > > 6.1.0. Hardware, storage volumes & paths, etc., will be the same after > > upgrade. > > > > I was going to redefine & start everything from .xml files, starting > > with the network > > > > virsh net-define <network XML> > > virsh net-autostart <network> > > virsh net-start <network> > > > > and following with all the guests > > > > virsh define <domain XML> > > virsh autostart <domain> > > virsh start <domain> > > If you are just upgrading the libvirt package then you do not need to do any > of this. Libvirt picks everything up after it's restarted. But if you are > installing host from scratch then .. > > > > > I have the following questions: > > > > 1. Do I need to generate XML dumps manually, or is it ok to use the > > ones from host's /etc/libvirt? > > .. yes, back up XMls here and use define & start as you suggested. > > > 2. Do I need to define & start storage pools & volumes explicitly, or > > will they be picked up from domain definitions? > > Storage pools won't be defined automatically. You need to save their XMLs > too. You can find them under /etc/libvirt/storage/. Don't forget on secrets > if you use them too. Needless to say, if you're backing up /etc/libvirt/<whatever> make sure libvirtd is down first, so that all the settings are properly dumped by the daemon to the respective XMLs. Erik
