ubuntu-phone team mailing list archive

[Daniel Holm <d.holmen@xxxxxxxxx>]

Hi everyone,

Love the response!

First, I think we should stay here [the mail list ] for the moment. Easier
to find if others will google anything regarding this in the future, and
won't force a G+ account.

Also, thank you for all the pointers and info - I will take a closer look.

I will set up a project for this at launchpad and give you all a link to
start the actual development and discussion.

After that I will paint a picture of an idea how to do this, and until then
any ones ideas are welcome :)

Cheers,
Daniel
Den 15 aug 2014 10:47 skrev "Michael Zanetti" <michael.zanetti@xxxxxxxxxxxxx
>:

> On Friday 15 August 2014 09:52:44 Oliver Grawert wrote:
> > hi,
> >
> > Am Freitag, den 15.08.2014, 09:34 +0200 schrieb Michael Zanetti:
> > > Cool stuff.. I'm a bit worried that you're just lucky though. Not
> really
> > > sure if its a good idea to install something manually and switch back
> to
> > > OTA upgrades. But I'm no expert on OTA stuff. Maybe someone else can
> shed
> > > some light how to do such a thing more reliable.
> >
> > there are surely 100 non-obvious things that will break :)
> >
> > the obvious one is that after the first OTA your apt and dpkg databases
> > are replaced with the ones from the image. so everything you installed
> > is gone from them and the system will not know about them anymore.
> > most likely your binaries will still be there (not much different from
> > what you get by compiling stuff from source and running a "make
> > install".)
>
> Ok. I don't see that much of an issue as such installed stuff won't be
> upgraded by apt or OTA anyways. So not real need to keep it in the apt
> database I guess.
>
> >
> > if your package registers with the system anywhere (i.e. a new gstreamer
> > plugin that registers with the system gstreamer database) this will be
> > overwritten as well ...
>
> This is obviously more critical, however in this particular case not
> problematic either.
>
> >
> > if you don't install any complex things with only libs and binaries
> > manual install and switching back to OTA will work. as soon as your
> > packages interact with the system at installl time to register to some
> > system configuration, this configuration will be removed by OTA
> > upgrades.
>
> Hmm ok... So it seems that in cases where you really just install a binary
> (e.g. copying it to /usr/bin/) this is actually a viable option and won't
> break on OTA updates? That's great to know. I was always worried that any
> modification in rw mode would very likely cause future OTA upgrades to fail
> and leave you with a broken system.
>
> Thanks for the explanations Oli!
>
> Cheers,
> Michael
>
>
>
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