root@blackbox:~# dpkg -l bluecherry
Desired=Unknown/Install/Remove/Purge/Hold
| Status=Not/Inst/Cfg-files/Unpacked/Failed-cfg/Half-inst/trig-aWait/Trig-pend
|/ Err?=(none)/Reinst-required (Status,Err: uppercase=bad)
||/ Name                               Version                            Description
+++-==================================-==================================-====================================================================================
ii  bluecherry                         1:2.0.0-0beta5.0                   Bluecherry DVR Server
root@blackbox:~# apt-get install bluecherry
Reading package lists... Done
Building dependency tree
Reading state information... Done
The following packages will be upgraded:
  bluecherry
1 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
Need to get 0B/852kB of archives.
After this operation, 12.3kB of additional disk space will be used.
WARNING: The following packages cannot be authenticated!
  bluecherry
Install these packages without verification [y/N]? y
(Reading database ... 179746 files and directories currently installed.)
Preparing to replace bluecherry 1:2.0.0-0beta5.0 (using .../bluecherry_1%3a2.0.0-0beta5.1_i386.deb) ...
bluecherry stop/waiting
UPGRADES WILL NOT WORK!!
Please 'dpkg -P bluecherry' before installing this new package
dpkg: error processing /var/cache/apt/archives/bluecherry_1%3a2.0.0-0beta5.1_i386.deb (--unpack):
 subprocess new pre-installation script returned error exit status 1
dbconfig-common: flushing administrative password
bluecherry start/running, process 9148
Errors were encountered while processing:
 /var/cache/apt/archives/bluecherry_1%3a2.0.0-0beta5.1_i386.deb
E: Sub-process /usr/bin/dpkg returned an error code (1)