[Xen-devel] virt-manager problem on Ubuntu

[XingBin <xbhust@xxxxxxxxx>]

Hello, everyone!
    I installed xen3.2.0 on Ubuntu and meet some problem.
    After the following commands
make all
make linux-2.6-xen0-config CONFIGMODE=menuconfig
make linux-2.6-xen0-build
make linux-2.6-xen0-install
    I got xen-3.2.0.gz   vmlinuz-2.6.18.8-xen0 etc. and put them to
/boot, then I modified the menu.lst

title           Xen 3.2.0 / Ubuntu 8.04, kernel 2.6.18.8-xen0
root            (hd0,8)
kernel          /boot/xen-3.2.0.gz
module          /boot/vmlinuz-2.6.18.8-xen0 root=/dev/hda9
quiet
    Now I can boot the Dom 0, and the output of 'xm list' was:
    root@xingbin-desktop:/boot# xm list
Name                                        ID   Mem VCPUs      State   Time(s)
Domain-0                                     0   939     2     r-----    316.5
but when I start the virt-manager, the following errors occurred:

Unable to open a connection to the Xen hypervisor/daemon.

Verify that:
 - A Xen host kernel was booted
 - The Xen service has been started


Details:
Unable to open connection to hypervisor URI 'xen:///':
<class 'libvirt.libvirtError'> virConnectOpenReadOnly() failed
Traceback (most recent call last):
  File "/usr/share/virt-manager/virtManager/connection.py", line 332,
in _open_thread
    self.vmm = libvirt.openReadOnly(self.uri)
  File "/usr/lib/python2.5/site-packages/libvirt.py", line 144, in openReadOnly
    if ret is None:raise libvirtError('virConnectOpenReadOnly() failed')
libvirtError: virConnectOpenReadOnly() failed

So what's the reason?
Thank you all!

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