Re: But the inner PV is only for the guest to use - no?
The intent is that the inner PV is only for the guest to use. What has happened for years and years is that unless you mask using /etc/lvm/lvm.conf the host will vgscan the inner PV and vgchange it too. Until 17.10 (possibly 17.04, I skipped that one) this was mostly a cosmetic issue, now it adds four minutes to the boot time.
Re: But the inner PV is only for the guest to use - no?
The intent is that the inner PV is only for the guest to use. What has happened for years and years is that unless you mask using /etc/lvm/lvm.conf the host will vgscan the inner PV and vgchange it too. Until 17.10 (possibly 17.04, I skipped that one) this was mostly a cosmetic issue, now it adds four minutes to the boot time.