Re: Upgrading the host

On 2/17/21 2:45 AM, Marcin Struzak wrote: > On 2/16/2021 12:51 AM, Michal Privoznik wrote: >> On 2/12/21 2:10 AM, Marcin Struzak wrote: >> [...] >> >>>  3. Anything else I should worry about or prepare ahead? >> >> Not strictly related to libvirt, but machine types might be problem. >> I guess qemu will be upgraded too and in general the machine type >> you're using for a domain might not be available in upgraded qemu. > Correct, it looks like qemu will go from 1.6.2 to 4.2.1... >> >> You can view supported machine types by running 'virsh capabilities' >> with upgraded qemu. > machine is pc-i440fx-1.6 in all my domains.  Is there a simple way to > figure out if that's supported in libvirt 6.1.0 (without installing it)? It's not libvirt who has say in machine types. Libvirt treats machine type as an opaque string. But I can see that pc-i440fx-1.6 is still available even with the latest QEMU release: # /usr/bin/qemu-system-x86_64 -version QEMU emulator version 5.2.0 # virsh capabilities | grep pc-i440fx-1.6       <machine maxCpus='255'>pc-i440fx-1.6</machine>       <machine maxCpus='255'>pc-i440fx-1.6</machine> So you are safe on that front.