[Openstack-operators] nova-novncproxy novnc install error on Ubuntu 12.04

(JDN) Martin van Wilderen martin at jdn.nl
Wed Jul 3 14:42:03 UTC 2013

Hi List,

We are installing a grizzly test on Ubuntu 12.04. I am following this guide:

At the section "OpenStack Compute (Cloud Controller services)" i hit the fowling error:

# apt-get install nova-novncproxy
Reading package lists... Done
Building dependency tree       
Reading state information... Done
The following extra packages will be installed:
The following NEW packages will be installed:
  nova-novncproxy novnc
0 upgraded, 2 newly installed, 0 to remove and 2 not upgraded.
Need to get 0 B/200 kB of archives.
After this operation, 2,441 kB of additional disk space will be used.
Do you want to continue [Y/n]? y
Selecting previously unselected package novnc.
(Reading database ... 67963 files and directories currently installed.)
Unpacking novnc (from .../novnc_1%3a0.4+dfsg+1-7_amd64.deb) ...
Unpacking nova-novncproxy (from .../nova-novncproxy_1%3a2013.1.2-0ubuntu1~cloud0_all.deb) ...
dpkg: error processing /var/cache/apt/archives/nova-novncproxy_1%3a2013.1.2-0ubuntu1~cloud0_all.deb (--unpack):
 trying to overwrite '/usr/bin/nova-novncproxy', which is also in package novnc 1:0.4+dfsg+1-7
Processing triggers for ureadahead ...
Processing triggers for man-db ...
Errors were encountered while processing:
E: Sub-process /usr/bin/dpkg returned an error code (1)

Any ideas?

We are using the packages as suggested from:
deb http://ubuntu-cloud.archive.canonical.com/ubuntu precise-updates/grizzly main


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