Brian, the hack doesn't seem workable. Touching channel.ini would then
flag all images as being supported, which isn't true. It's unclear what
knock-on effects we would have touching this file (i.e. what other tools
see it and take different code-paths). The existence of the file
indicates that the image is a read-only system image, this is untrue for
I would still like to see this resolved, even if that is just an
improvement in the error message suggesting 'apt-get update' and
* packaging-apt-dpkg.py, is_distro_package(): If there is no origin and
/etc/system-image/channel.ini exists, assume the package is from a
read-only system image and accept it as distro package. With this we don't
need /var/lib/apt/lists/ indexes any more just to confirm the origin.
You received this bug notification because you are a member of Ubuntu
Touch seeded packages, which is subscribed to apport in Ubuntu.
incorrectly reports package as unsupported if apt cache is empty
Status in apport package in Ubuntu:
Cloud images ship with empty /var/lib/apt/lists/ to save on size.
Running 'ubuntu-bug <supported_package>' will erroneously report that
the package is unsupported:
$ ubuntu-bug coreutils
*** Collecting problem information
The collected information can be sent to the developers to improve the
application. This might take a few minutes.
*** Problem in coreutils
The problem cannot be reported:
This is not an official Ubuntu package. Please remove any third
party package and try again.
A simpler recreate is:
$ python3 -c 'import
$ sudo apt update -qq
All packages are up to date.
$ python3 -c 'import
The message should instruct the user to run 'apt update' as root if
they think this is in error. That would improve usability and avoid
false reports about apport incorrectly flagging a package as
Additionally, if the user is root (and optionally if the set of
package candidates only contains a 'now' component)
self._cache.update(); self._cache.open() could be called to download
Alternatively it could just check to see if lists have been
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