Open Stack

Hi,

I have installed openstack diablo. All services are installed correctly and
running except nova-vncprxoy.
I get the following error while installing nova-vncprxoy:

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root at ubuntu:/home/habiba# apt-get install nova-vncproxy

Reading package lists... Done
Building dependency tree
Reading state information... Done
The following NEW packages will be installed:
nova-vncproxy
0 upgraded, 1 newly installed, 0 to remove and 360 not upgraded.
Need to get 4,402 B of archives.
After this operation, 74.8 kB of additional disk space will be used.
WARNING: The following packages cannot be authenticated!
nova-vncproxy
Install these packages without verification [y/N]? y
Get:1 http://us.archive.ubuntu.com/u... precise-updates/main nova-vncproxy
all 2012.1.3+stable-20120827-4d2a4afe-0ubuntu1.2 [4,402 B]
Fetched 297 B in 0s (1,052 B/s)

Failed to fetch http://us.archive.ubuntu.com/u... Size mismatch
E: Unable to fetch some archives, maybe run apt-get update or try with
--fix-missing?
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I am unable to locate and install "novncproxy" and "vncproxy" and as a
result, cannot access the VM instances of openstack.
Kindly suggest some way to solve this issue.

Regards
M Kazim
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