'copy-image' resulted in an image embedding the wrong channel name

[Steve Langasek]

Publication of the OTA 3.5 release onto the ubuntu-touch/stable/bq-aquaris.en channel has resulted in a wrong channel.ini. The command that was run was:

copy-image -v -p 6 ubuntu-touch/rc/bq-aquaris.en ubuntu-touch/ubuntu-rtm/14.09 krillin 23

(ubuntu-touch/stable/bq-aquaris.en is an alias to ubuntu-touch/ubuntu-rtm/14.09.)

The expected output on the ubuntu-touch/stable/bq-aquaris.en channel is a channel.ini containing:

  channel: ubuntu-touch/stable/bq-aquaris.en
  channel_target: ubuntu-touch/ubuntu-rtm/14.09

The actual output was a channel.ini containing:

  channel: ubuntu-touch/stable/bq-aquaris.es
  channel_target: ubuntu-touch/ubuntu-rtm/14.09

The ubuntu-touch/stable/bq-aquaris.es channel is a redirect pointed at ubuntu-touch/ubuntu-rtm/14.09. It should not have shown up anywhere in the system-image config for ubuntu-touch/stable/bq-aquaris.en.

[Steve Langasek (vorlon)]

This is critical for two reasons:
 - we are about to ship another image to factory, and we need the image to have the correct channel contents at the get-go.
 - Until this is resolved and can propagate out to users, we are now unable to drop the *obsoleted* ubuntu-touch/stable/bq-aquaris.es channel from the server.

[Barry Warsaw (barry)]

The problem is that bq-aquaris.es is described as both an alias and a redirect in the channels.json file, and aliases were taking precedence. We need to cull redirects from the list of alias channels that get generated.

[Steve Langasek (vorlon)]

Fixed in revision 267 of lp:~ubuntu-system-image/ubuntu-system-image/server/ and deployed to production.