Re: Xen 4.5 to 4.8 upgrade

[John Nemeth <jnemeth%cue.bc.ca@localhost>]

On Feb 15,  6:11pm, Dima Veselov wrote:
} 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.

     Not sure if it makes any difference and I don't recall off
the top of my which the xbd backend driver wants, but did you try
the raw device, i.e. /dev/<vg>/r<lv>?

}-- End of excerpt from Dima Veselov