Dear Wayne,
there might be different ways you can go. I switched channels several
times in the past and I most likely will do it also in future. My
"way" of choice is the following: I use my Ubuntu-PC terminal. This is
easier to copy & paste the commands and you can also easily document
the output of the commands if you wish.
To start (phone connected via USB with the PC) you open a terminal
session and type:
$adb shell
This brings you on your phone (screen has to be unlocked at that stage
otherwise you will not get on your phablet). Next:
phablet@ubuntu-phablet:~$ system-image-cli -i
This shows you which system you currently use (build #, channel,
etc.). So for the first time it makes sense to c&p the output of this
command.
With the following command you are directly switching channels and
your phone will download via WiFi or GSM the image of the new channel:
phablet@ubuntu-phablet:~$ sudo system-image-cli --switch
ubuntu-touch/rc-proposed/bq-aquaris.en
_This command does not give any output!_ Depending on your network
speed it will take some time and then the phone restarts. Your
terminal-session will automatically exit the session with your phablet
and you are back on your machine.
The phone will restart, load the new image (turning Ubuntu logo) and
then restart again. In my case, when I switch the channel, it seems
that the phone hangs at the white bq screen. Do not worry, wait some
time and if nothing happens you probably will need to press a bit
longer on the on/off button. It always came up in my case :-) .
After this procedure you can check if everything has worked as you
wish by:
$adb shell
... and next:
phablet@ubuntu-phablet:~$ system-image-cli -i
Now the build number, channel, etc. should have changed. So for the
first time it makes sense to c&p the output of this command.
To get back to stable you do exactly the same just the channel name is
different:
phablet@ubuntu-phablet:~$ sudo system-image-cli --switch
ubuntu-touch/stable/bq-aquaris.en
If there is a good answer which way will work better? I do not know, I
have never tried Peter's way but I know many others do it like he does.
One question you should ask yourself: what do you want to achieve?
This "just" switches the channel. Your system partition of the phone
will change the user partition not. If you want to wipe your phone and
start from scratch this command will not help.
With this command you should also be aware that all changes you have
made to your system partition are gone away. Two examples from me:
* I use a special certificate to connect to my https server. This
certificate is located on the system partition and I need to copy
& apply it each time I change channels.
* If you have special debugging settings to generate better bug
reports this is also gone and you need to apply these settings again.
I wish best success!!
Maybe someone can feedback if there is a difference between Peter's
and my command and what this difference is. I would be very interested
on this feedback,
Uranicus
Am 13.02.2016 um 20:02 schrieb Peter Bittner:
Can anybody tell me the command to switch my bq hd5 to propsed channel
I think that should be:
$ ubuntu-device-flash touch --channel ubuntu-touch/rc-proposed/ubuntu
See also:https://developer.ubuntu.com/en/start/ubuntu-for-devices/image-channels/
Good luck,
Peter
