Document -b 0 needed to switch channels

[Oliver Grawert]

trying to upgrade from saucy-proposed to trusty-proposed with system-image-cli tells me i'm up to date instead of upgrading to trusty

[Oliver Grawert (ogra)]

root@ubuntu-phablet:/# system-image-cli -i
current build number: 100
device name: mako
channel: saucy-proposed
last update: 2013-10-17 11:31:17
version version: 100
version ubuntu: 20131017
version device: 20131015
root@ubuntu-phablet:/# system-image-cli -c trusty-proposed -v
[systemimage] Oct 23 09:19:10 2013 (22849) running state machine [trusty-proposed/mako]
[systemimage] Oct 23 09:19:10 2013 (22849) Looking for blacklist: https://system-image.ubuntu.com/gpg/blacklist.tar.xz
[systemimage] Oct 23 09:19:10 2013 (22849) Requesting group download:
 https://system-image.ubuntu.com/gpg/blacklist.tar.xz -> /var/lib/system-image/keyring.tar.xz
 https://system-image.ubuntu.com/gpg/blacklist.tar.xz.asc -> /var/lib/system-image/keyring.tar.xz.asc

[systemimage] Oct 23 09:19:10 2013 (22849) Running group download reactor
[systemimage] Oct 23 09:19:11 2013 (22849) Group download reactor done
[systemimage] Oct 23 09:19:11 2013 (22849) Local blacklist file: /var/lib/system-image/blacklist.tar.xz
[systemimage] Oct 23 09:19:11 2013 (22849) Looking for: https://system-image.ubuntu.com/channels.json
[systemimage] Oct 23 09:19:11 2013 (22849) Requesting group download:
 https://system-image.ubuntu.com/channels.json -> /tmp/system-image-am5nyt/channels.json
 https://system-image.ubuntu.com/channels.json.asc -> /tmp/system-image-am5nyt/channels.json.asc

[systemimage] Oct 23 09:19:11 2013 (22849) Running group download reactor
[systemimage] Oct 23 09:19:12 2013 (22849) Group download reactor done
[systemimage] Oct 23 09:19:12 2013 (22849) Local channels file: /tmp/system-image-am5nyt/channels.json
[systemimage] Oct 23 09:19:12 2013 (22849) got channel: trusty-proposed
[systemimage] Oct 23 09:19:12 2013 (22849) found channel/device entry: trusty-proposed/mako
[systemimage] Oct 23 09:19:12 2013 (22849) Requesting group download:
 https://system-image.ubuntu.com/trusty-proposed/mako/index.json -> /tmp/system-image-am5nyt/index.json
 https://system-image.ubuntu.com/trusty-proposed/mako/index.json.asc -> /tmp/system-image-am5nyt/index.json.asc

[systemimage] Oct 23 09:19:12 2013 (22849) Running group download reactor
[systemimage] Oct 23 09:19:12 2013 (22849) Group download reactor done
[systemimage] Oct 23 09:19:13 2013 (22849) Already up-to-date
root@ubuntu-phablet:/# system-image-cli -i
current build number: 100
device name: mako
channel: saucy-proposed
last update: 2013-10-17 11:31:17
version version: 100
version ubuntu: 20131017
version device: 20131015
root@ubuntu-phablet:/#

[Barry Warsaw (barry)]

I'm updating the manpage and s-i-cli --help to make it clearer that you have to use -c and -b 0 to switch channels.

[Barry Warsaw (barry)]

Even though I've closed this bug, I had a thought.

I could add `system-image-cli --switch trusty` which would be exactly equivalent to `system-image-cli --channel trusty --build 0`. It would be just a convenience option. It would save you a few characters, but more importantly, it would make the intended operation more clear (and would be documented as such in the --help and manpage).

If you think this would be useful, let me know. Otherwise, we'll just leave things the way they are.

[Loïc Minier (lool)]

That's a fair approach; also, would it would be useful to expose this in the UI somehow.

Would also be good to have a way to express that one wants a full (--build 0 does this), aka clean reinstall, but that would be command-line only.

[Barry Warsaw (barry)]

On Nov 08, 2013, at 09:04 AM, Loïc Minier wrote:

>That's a fair approach; also, would it would be useful to expose this in
>the UI somehow.

LP: #1249347 now tracks this.

>Would also be good to have a way to express that one wants a full
>(--build 0 does this), aka clean reinstall, but that would be command-
>line only.

`--filter full` should do this.