ubuntu-phone team mailing list archive

[Dmitrijs Ledkovs <xnox@xxxxxxxxxx>]

On 4 November 2013 13:40, François Leblanc <fleblanc50@xxxxxxxxx> wrote:
> I apalogize I don't understand very well,
> ,
>
> by system-image do you mean the use of system.img ? If so where can we found
> this?
>

>From phablet-flash -h:
    cdimage-touch
                  Provisions the device with a CDimage build of Ubuntu Touch.
    cdimage-legacy
                  Provisions the device with legacy unflipped images.
    ubuntu-system
                  Provisions the device with an Ubuntu Image Based Upgrade
                  image.
    community     Provisions the device with a community supported build.


At the moment - "ubuntu-system" are read-only, upgradable with binary
deltas. It's default image type for official nexus targets, which is
generated on canonical infrastructure and signed by trusted keys which
are verified on each upgrade. At the moment it's not possible to
replicate, nor host community ports on that infrastructure. A
stand-alone flipped image (cdimage-touch) is produced more-or-less as
a by-product whilst generating "ubuntu-system". Depending on how
well-behaved CyanogenMod porting is, creating a new community port
will always be preferably based on "cdimage-touch", unless not
possible or buggy in which case it would be based on "cdimage-legacy".

Once everything is ported and works, and the device is official indeed
"end-users" only need ubuntu-system to flash their device for the
first time, later they can upgrade using OTA updates UI.

For bootstrapping a new device, e.g. Nexus 5, Nexus 7 2013, any
community ports. One will need to start off with cdimage-legay
(optionally) and/or cdimage-touch.

Thus removing support / fallbacks to cdimage-touch / cdimage-legacy
will effectively prevent us from starting new ports for new devices.
Unused by default, but very much needed for:
 1) day-to-day for unofficial ports
 2) for starting new official or unofficial port =))))

I hope above reasoning clears things up.

If you are using phablet-flash with nexus device as a "user" rather
than "porter to new devices", flash it once and use over the air
updates and/or system-image-update CLI to wipe device clean.
phablet-flash is only needed on nexus device for the initial first
provisioning of unlcoked device that only has android installed on it.

Regards,

Dmitrijs.


> Last time I have a look on trusty-preinstalled-touch-armhf.zip scripts unzip
> under directory ubuntu,
>
> and not in a system.img file...
>
> If so how, to inject needed files for device porting (70-device.rules,
> device.conf etc etc..)?
>
> If system.img design is completly different does it make a sence to port on
> old design? Perhaps we have
>
> porting problems that not appear in this new design, or perhaps we will make
> functionnal a device that
>
> become not in system-image...
>
>
> Perhaps I'm completly wrong.. Sorry.
>
>
> So my main trouble is if system-image is the way where can I find it to
> adapt to my device?
>
> Regards.
>
>
>
>
>
>
>
>
>
>
> 2013/11/4 Oliver Grawert <ogra@xxxxxxxxxx>
>>
>> hi,
>> Am Montag, den 04.11.2013, 09:57 -0200 schrieb Roberto Colistete Jr.:
>> > Em 02-11-2013 18:09, Chris Wayne escreveu:
>>
>> >
>> >     So I ask the Ubuntu Touch community : aren't cdimage-touch images
>> > not maintained anymore ? 2 months after the cited email ? Please
>> > clarify.
>> they are an interim product on the way to system-images, we only test
>> the final product but keep that interim image around for image
>> developers (porters).
>>
>> due to the completely different image design the cdimage image might
>> have bugs that do not show up on system-image images so it is hard to
>> fully support them ...
>>
>> if you do a port it is still the best image to use though and we will
>> keep it around until we have a proper way for porters to create self
>> signed system images and provide a system-image server for their builds.
>>
>> ciao
>>         oli
>>
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