[libvirt-users] Libvirt 1.2.5/Qemu woes
Eric Blake
eblake at redhat.com
Mon Jun 16 16:53:32 UTC 2014
On 06/16/2014 08:25 AM, andy zerger wrote:
> Hi all -
>
> I'm dealing with a libvirt 1.2.5 and Qemu-1.7.1 also Qemu-2.0 (all source
> compile,) which somehow isn't seeing any hypervisors when connected to via
> virt-manager.
A good thing to try is whether 'virsh -c qemu:///system list --all'
shows anything; debugging a command-line test can be easier than
debugging a gui not listing anything.
>
> I'm sure I must be doing something wrong but cannot figure out what. My
> basic config and current state here in pastebin:
> http://pastebin.com/m5M8PfFC
pastebin is not permanent. When your posting expires, someone
revisiting this thread in the mail list archives will have no idea what
you were seeing. So I'm reproducing it here:
> ./configure --target-list=x86_64-linux-user --enable-kvm --sysconfdir=/etc/libvirt --localstatedir=/var;
This is not the same set of configure options as what is used by the rpm
package shipped in CentOS. As a result, if you have any mismatch
between the distro build and your self-build, things tend not to connect
to the right server.
Libvirt's autogen.sh has a --system flag that sets up the following
configure arguments, which tends to work better out-of-the-box for
replacing a Fedora-based distro build with a self-build:
if test "x$1" = "x--system"; then
shift
prefix=/usr
libdir=$prefix/lib
sysconfdir=/etc
localstatedir=/var
if [ -d /usr/lib64 ]; then
libdir=$prefix/lib64
fi
EXTRA_ARGS="--prefix=$prefix --sysconfdir=$sysconfdir
--localstatedir=$localstatedir --libdir=$libdir"
>
> [root at 10-3-1-35 qemu_images]# lsmod
> Module Size Used by
> kvm_amd 41702 0
> kvm 316506 1 kvm_amd
>
> [root at 10-3-1-35 qemu_images]# ls -l /dev/kvm
> crw-rw----. 1 root root 10, 232 Jun 16 09:13 /dev/kvm
This looks fishy; /dev/kvm should be 0666, not 0660.
>
> [root at 10-3-1-35 qemu-1.7.1]# which qemu-x86_64
> /usr/local/bin/qemu-x86_64
Again, an issue of self-built binaries not being in the same location as
the distro defaults, so I'm not sure if you have configured everything
to work well with this location.
>
> [root at 10-3-1-35 qemu_images]# qemu-x86_64
> usage: qemu-x86_64 [options] program [arguments...]
> Linux CPU emulator (compiled for x86_64 emulation)
>
> [root at 10-3-1-35 qemu-1.7.1]# cat /etc/redhat-release
> CentOS release 6.5 (Final)
--
Eric Blake eblake redhat com +1-919-301-3266
Libvirt virtualization library http://libvirt.org
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