Re: Xen 4.5 to 4.8 upgrade

[Dima Veselov <kab00m%lich.phys.spbu.ru@localhost>]

On Thu, Dec 21, 2017 at 08:02:44PM +0100, Manuel Bouyer wrote:
> On Sun, Dec 17, 2017 at 07:17:22PM +0300, Dima Veselov wrote:
> > 
> > I have an issue updating Xen 4.5 to 4.8 about using 
> > block devices in virtual machines.
> > 
> > >From the beginning I was using phy:/<block>,xvda,w notation,
> > which is now deprecated. It still works on Xen 4.5 on NetBSD 
> > 7-STABLE with LVM on top. Also, I notice that VM start is 
> > fast, without any delay.
> > 
> > After upgrading to Xen 4.8 built from pkgsrc (1, Dec, 2017) this
> > do not work anymore, complaining:
> > 
> > [root@midgard ~]$ xl create -c /etc/xen/rpd 
> > Parsing config from /etc/xen/rpd
> > xenstore-read: not found
> 
> this looks like a $PATH issue.
> Maybe the xenstore-* tools are not in the same directory.
> 
> Did you upgrade your /usr/pkg/etc/xen/script/* after upgrading
> the packages ?

I did everything and Xen works as I already reported, however 
we found an issue: HVM-domU do not take /dev/<vg>/<lv> as hda
device, it take only /dev/mapper/<vg>-<lv>. PV machines are 
working fine with both.

-- 
Sincerely yours,
Dima Veselov
Physics R&D Establishment of Saint-Petersburg University