aptitude dist-upgrade

187 packages upgraded, 26 newly installed, 3 to remove and 2 not upgraded.
Need to get 41.1MB of archives. After unpacking 27.2MB will be used.
Do you want to continue? [Y/n/?] 
Writing extended state information... Error!
E: I wasn't able to locate file for the xen-utils-3.0 package. This might mean you need to manually fix this package.
E: Couldn't lock list directory..are you root?


..

dpkg -r xen-utils-3.0
dpkg: error processing xen-utils-3.0 (--remove):
 Package is in a very bad inconsistent state - you should
 reinstall it before attempting a removal.
Errors were encountered while processing:
 xen-utils-3.0

dpkg -i xen-utils-3.0_3.0.3-0ubuntu1_i386.deb
Selecting previously deselected package xen-utils-3.0.
(Reading database ... 22068 files and directories currently installed.)
Preparing to replace xen-utils-3.0 3.0.3-0ubuntu1 (using xen-utils-3.0_3.0.3-0ubuntu1_i386.deb) ...
Stopping XEN: Traceback (most recent call last):
  File "/usr/sbin/xend", line 49, in ?
    from xen.xend.server import SrvDaemon
ImportError: No module named xen.xend.server
invoke-rc.d: initscript xend, action "stop" failed.
dpkg: warning - old pre-removal script returned error exit status 1
dpkg - trying script from the new package instead ...
Stopping XEN: Traceback (most recent call last):
  File "/usr/sbin/xend", line 49, in ?
    from xen.xend.server import SrvDaemon
ImportError: No module named xen.xend.server
invoke-rc.d: initscript xend, action "stop" failed.
dpkg: error processing xen-utils-3.0_3.0.3-0ubuntu1_i386.deb (--install):
 subprocess new pre-removal script returned error exit status 1
Starting XEN: Traceback (most recent call last):
  File "/usr/sbin/xend", line 49, in ?
    from xen.xend.server import SrvDaemon
ImportError: No module named xen.xend.server
invoke-rc.d: initscript xend, action "start" failed.
dpkg: error while cleaning up:
 subprocess post-installation script returned error exit status 1
Errors were encountered while processing:
 xen-utils-3.0_3.0.3-0ubuntu1_i386.deb