Comment 3 for bug 1472586

(trusty-amd64)root@armstrong:~# add-apt-repository cloud-archive:liberty
 Ubuntu Cloud Archive for OpenStack Liberty
 More info: https://wiki.ubuntu.com/ServerTeam/CloudArchive
Press [ENTER] to continue or ctrl-c to cancel adding it

Reading package lists...
Building dependency tree...
Reading state information...
The following NEW packages will be installed:
  ubuntu-cloud-keyring
0 upgraded, 1 newly installed, 0 to remove and 6 not upgraded.
Need to get 5086 B of archives.
After this operation, 34.8 kB of additional disk space will be used.
Get:1 http://archive.ubuntu.com/ubuntu/ trusty/universe ubuntu-cloud-keyring all 2012.08.14 [5086 B]
Fetched 5086 B in 0s (0 B/s)
Selecting previously unselected package ubuntu-cloud-keyring.
(Reading database ... 14372 files and directories currently installed.)
Preparing to unpack .../ubuntu-cloud-keyring_2012.08.14_all.deb ...
Unpacking ubuntu-cloud-keyring (2012.08.14) ...
Setting up ubuntu-cloud-keyring (2012.08.14) ...
Importing ubuntu-cloud.archive.canonical.com keyring
OK
Processing ubuntu-cloud.archive.canonical.com removal keyring
gpg: /etc/apt/trustdb.gpg: trustdb created
OK
(trusty-amd64)root@armstrong:~# add-apt-repository cloud-archive:liberty-proposed
 Ubuntu Cloud Archive for OpenStack Liberty [proposed]
 More info: https://wiki.ubuntu.com/ServerTeam/CloudArchive
Press [ENTER] to continue or ctrl-c to cancel adding it

Reading package lists...
Building dependency tree...
Reading state information...
ubuntu-cloud-keyring is already the newest version.
0 upgraded, 0 newly installed, 0 to remove and 6 not upgraded.
(trusty-amd64)root@armstrong:~# cat /etc/apt/sources.list.
sources.list.d/ sources.list.save
(trusty-amd64)root@armstrong:~# cat /etc/apt/sources.list.d/cloudarchive-liberty
cloudarchive-liberty-proposed.list cloudarchive-liberty.list cloudarchive-liberty.list.save
(trusty-amd64)root@armstrong:~# cat /etc/apt/sources.list.d/cloudarchive-liberty*
deb http://ubuntu-cloud.archive.canonical.com/ubuntu trusty-proposed/liberty main
# deb-src http://ubuntu-cloud.archive.canonical.com/ubuntu trusty-proposed/liberty main
deb http://ubuntu-cloud.archive.canonical.com/ubuntu trusty-updates/liberty main
# deb-src http://ubuntu-cloud.archive.canonical.com/ubuntu trusty-updates/liberty main
deb http://ubuntu-cloud.archive.canonical.com/ubuntu trusty-updates/liberty main
# deb-src http://ubuntu-cloud.archive.canonical.com/ubuntu trusty-updates/liberty main