error: Failed to connect socket to '/usr/local/var/run/libvirt/libvirt-sock': Permission denied

error: failed to connect to the hypervisor

Well interesting enough, when I start the daemon and run "lsof | grep libvirt-sock" it returns this path:

libvirtd 5598 shawn 11u unix 0xffff88042192d050 0t0 39057 /home/users/shawn/.cache/libvirt/libvirt-sock

So if I'm not mistaken, it appears that the daemon is creating the socket at "/home/users/shawn/.cache/libvirt" but the virsh command is trying to connect at "/usr/local/var/run/libvirt". I figured that changing the unix_sock_dir variable in "/usr/local/etc/libvirt/libvirtd.conf" to be set to "/usr/local/var/run/libvirt" would fix it but it doesn't. The daemon still creates the libvirt-sock socket at "/home/users/shawn/.cache/libvirt/libvirt-sock".

Do you happen to know where or how to set daemon's default location for creating the libvirt-sock?

Shawn

On Thu, Aug 23, 2012 at 12:52 PM, Whit Blauvelt <whit.virt@transpect.com> wrote:

Shawn,

First off, nobody would call me an expert at this. Fumbling like you are.
But it's working for me.

Are you sure you killed all libvirtd processes before starting libvirtd? You
might check for them with "ps aux | grep libvirtd". I recall a tendency for
them to hang around short of explicitly killing them.

Which user did you start libvirtd as? I'd doing that as root.

Speaking of users, there's another step I took, and I'm not sure if it was
essential or not. In /usr/local/etc/libvirt/qemu.conf I set the qemu user
and group to the Ubuntu defaults:

# The user ID for QEMU processes run by the system instance.
#user = "root"
user = "libvirt-qemu"

# The group ID for QEMU processes run by the system instance.
#group = "root"
group = "kvm"

Did that while I was fumbling. Not sure if it was critical.

Whit

On Thu, Aug 23, 2012 at 12:27:01PM -0400, Shawn Furrow wrote:
> Whit,
>
> I was able to get around the library problem by simply uninstalling the
> xsltproc distribution package. The docs are not made but the installation
> finishes. (Let me know if you think this is a bad idea or if it will mess up
> the running of libvirt somehow)
>
> I tried your suggestion and I can run the libvirt daemon from the location you
> suggested. However, when I cannot seem to connect to the libvirt-sock socket or
> the qemu hypervisor. When I run the command "sudo virsh -c qemu:///system list"
> I get the follow error messages:
>
> error: Failed to connect socket to '/usr/local/var/run/libvirt/libvirt-sock':
> Connection refused
> error: failed to connect to the hypervisor
>
> Any ideas how to get this working. I've been running into this problem for
> several combinations of installs except for when I use the distro packages for
> both qemu-kvm and libvirt.
>
> Thanks,
> Shawn
>
>
>
> On Wed, Aug 22, 2012 at 4:20 PM, Whit Blauvelt <whit.virt@transpect.com> wrote:
>
> What works for me (Ubuntu 10.10):
>
> Stop the old version.
>
> Start the new one with:
>
> /usr/local/sbin/libvirtd -d
>
> That's assuming that you did a "make install" and let it go to the default
> location, which that is. Now, if it's all default (both the original and
> your builds), then replace /usr/local/etc/libvirt/qemu with a symlink to
> /etc/libvirt/qemu before starting.
>
> Also, if you've built qemu-kvm to replace the distro version, then
> /usr/bin/kvm should be a symlink to /usr/local/bin/qemu-system-x86_64
> rather
> than the distro's /usr/bin/qemu-system-x86_64.
>
> There's also another daemon or two that you may or may not need running
> according to how you're handling the VM interfaces. Since I'm bridging
> them,
> I haven't concerned myself with that.
>
> In recent versions Ubuntu has omitted a proper /etc/init.d script in favor
> of upstart (which I hate; YMMV). There's still a decent init.d script for
> libvirt in Debian, which can be edited to work with a built-from-source
> version. Of course, Ubuntu will replace that whenever you do updates, if it
> still thinks that libvirt is something it should update.
>
> BTW, what did you do to get around the library problem?
>
> Whit
>
> On Wed, Aug 22, 2012 at 03:50:12PM -0400, Shawn Furrow wrote:
> > Daniel (and all others),
> >
> > I have been able to get past the libvirt installation but I cannot start
> the
> > libvirtd daemon. For ubuntu, what is the best way to start the libvirtd
> daemon?
> > "sudo make install" did not put libvirtd in /etc/init.d so the only place
> I see
> > it is in libvirt-0.10.0/daemon/. I have looked up this issue online and
> the
> > best I have seen is to install the distribution package and replace the
> daemon
> > with the one I build from source. Does anyone know anything about this?
> >
> > Thanks,
> > Shawn
> >
> > On Wed, Aug 22, 2012 at 10:40 AM, Shawn Furrow <sfurrow@vt.edu> wrote:
> >
> > If I run xmllint --noout docs/news.html.in inside the libvirt-0.10.0
> > directory I get no output.
> >
> > Shawn
> >
> >
> > On Wed, Aug 22, 2012 at 10:33 AM, Daniel Veillard <
> veillard@redhat.com>
> > wrote:
> >
> > On Wed, Aug 22, 2012 at 10:02:53AM -0400, Shawn Furrow wrote:
> > > Daniel,
> > >
> > > I tried re-installing all of those libraries and I still get
> the same
> > > segfault. Here are the outputs you requested:
> > >
> > > *xsltproc --version*
> > > Using libxml 20706, libxslt 10126 and libexslt 815
> > > xsltproc was compiled against libxml 20706, libxslt 10126 and
> > libexslt 815
> > > libxslt 10126 was compiled against libxml 20706
> > > libexslt 815 was compiled against libxml 20706
> > >
> > > *xmllint --version*
> > > xmllint: using libxml version 20706
> > > compiled with: Threads Tree Output Push Reader Patterns
> Writer
> > SAXv1 FTP
> > > HTTP DTDValid HTML Legacy C14N Catalog XPath XPointer XInclude
> Iconv
> > > ISO8859X Unicode Regexps Automata Expr Schemas Schematron
> Modules
> > Debug Zlib
> >
> > what does xmllint --noout docs/news.html.in gives within
> libvirt ?
> > if it crashes then check which libz is used by
> > ldd /usr/bin/xmllint
> > and check where that library comes from, it's very likely a
> problem
> > like that, xsltproc should not crash
> >
> > Daniel
> >
> > --
> > Daniel Veillard | libxml Gnome XML XSLT toolkit http://
> > xmlsoft.org/
> > daniel@veillard.com | Rpmfind RPM search engine http://
> rpmfind.net/
> > http://veillard.com/ | virtualization library http://libvirt.org
> /
> >
> >
> >
> >
> > --
> > Virginia Tech
> > Bradley Department of Electrical and Computer Engineering
> > B.S. Electrical Engineering
> > B.S. Computer Engineering
> >
> >
> >
> >
> >
> > --
> > Virginia Tech
> > Bradley Department of Electrical and Computer Engineering
> > B.S. Electrical Engineering
> > B.S. Computer Engineering
> >
>
> > _______________________________________________
> > libvirt-users mailing list
> > libvirt-users@redhat.com
> > https://www.redhat.com/mailman/listinfo/libvirt-users
>
>
>
>
>
> --
> Virginia Tech
> Bradley Department of Electrical and Computer Engineering
> B.S. Electrical Engineering
> B.S. Computer Engineering
>

Virginia Tech
Bradley Department of Electrical and Computer Engineering
B.S. Electrical Engineering

B.S. Computer Engineering