ubuntu-phone team mailing list archive

["Johannes Renkl" <renkljs@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx>]

Hi Oli, hi Christian!


(My first post on this list - I hope this goes into the right thread.)
I experienced the same problem yesterday, tried to repair it and made
it even worse (deinstalled lxc-android-config_0.193 partially) so that
the apt-get install -f workaround did not work anymore.
Just in case someone else get stuck like that: you may unpack the deb
file, delete lib/udev/rules.d/70-android.rules, repack it again and
install it. Dirty - hopefully this file will never change... >)

Btw. I've read 
https://wiki.ubuntu.com/ImageBasedUpgrades/ExtraPackageInstallation
and thought if it would be possible/considerable/feasible to:
- install extra packages somewhere outside the image (/data/local?)
- keep only one dpkg-database outside the image for everything
- keep the db in sync by appropriate operations whenever the image is
  updated

Unmet depencies and conflicts would have to be resolved on the extra
package side, but that seems to be a general problem.
(Or would the "outsourcing of the dpkg-database" undermine the idea of
having identically devices too much?)

Just some crazy ideas... 


Greetings
Johannes



> Hi Oli !
> 
> Thanks for the informations.
> 
> I fixed it with the workaround, this way is ok for me and it is good
> to know ;)
> 
> Very helpful !
> 
> Regards
> Christian
> 
> Am 2014-09-03 09:41, schrieb Oliver Grawert:
> >hi,
> >Am Dienstag, den 02.09.2014, 23:00 +0200 schrieb Christian Mahlig:
> >>Hello !
> >>
> >>On current apt upgrade i get the following error:
> >>
> >>Unpacking lxc-android-config (0.194) over (0.193) ...
> >>dpkg: error processing archive
> >>/var/cache/apt/archives/lxc-android-config_0.194_all.deb (--unpack):
> >> unable to make backup link of `./lib/udev/rules.d/70-android.rules'
> >>before installing new version: Invalid cross-device link
> >>
> >>I don't know how i can fix it. Can anybody help me ?
> >
> >sadly you can not fix it, due to the nature of our system images where
> >writable bits are available via bind mounts into a writable partition
> >and the design of dpkg to use hard links when replacing an
> >existing file
> >(hard links can not be used across partitions) some existing files are
> >not replaceable during an upgrade.
> >
> >a workaround by installing the deb for such packages (there are more)
> >from recovery is at [1] ... if you run "sudo apt-get -f install" after
> >the reboot into your system, apt and dpkg should be fine again.
> >
> >(note also that while we support installation of packages via apt, we
> >currently dont really support upgrades through it on system image
> >installs)
> >
> >ciao
> >	oli
> >
> >[1] https://wiki.ubuntu.com/Touch/Testing/lxc-android-config
> 
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