Bug#204780:
> # apt-get -o Debug::pkgProblemResolver=true remove -s libgphoto2-port0
> Reading Package Lists... Done
> Building Dependency Tree... Done
> Starting
> Starting 2
> Investigating libgphoto2-2
> Package libgphoto2-2 has broken dep on libexif9
> Considering libexif9 1 as a solution to libgphoto2-2 6
> Re-Instated libexif9
> Reinst Failed because of protected libgphoto2-port0
> Removing libgphoto2-2 rather than change libexif9
I'm not intimately familiar with this part of the code, but this doesn't
look right to me. You haven't requested removal of libexif9, so I don't
know why libgphoto2-2's dependency would be found to be broken.
I am still unable to reproduce this, so I can't tell why this is happening.
I downgraded my libexif9 to 0.5.10-1 to make it upgradable to 0.5.10-2, but
it doesn't get upgraded when I remove libgphoto2-port0:
mizar:[~] sudo apt-get -o Debug::pkgProblemResolver=true remove libgphoto2-port0
Reading Package Lists... Done
Building Dependency Tree... Done
Starting
Starting 2
Investigating libgphoto2-2
Package libgphoto2-2 has broken dep on libgphoto2-port0
Considering libgphoto2-port0 10003 as a solution to libgphoto2-2 5
Reinst Failed because of protected libgphoto2-port0
Removing libgphoto2-2 rather than change libgphoto2-port0
Investigating libsane
Package libsane has broken dep on libgphoto2-2
Considering libgphoto2-2 5 as a solution to libsane 1
Removing libsane rather than change libgphoto2-2
Investigating sane-utils
Package sane-utils has broken dep on libsane
Considering libsane 1 as a solution to sane-utils 0
Removing sane-utils rather than change libsane
Investigating gphoto2
Package gphoto2 has broken dep on libgphoto2-2
Considering libgphoto2-2 5 as a solution to gphoto2 -1
Removing gphoto2 rather than change libgphoto2-2
Investigating gtkam
Package gtkam has broken dep on libgphoto2-2
Considering libgphoto2-2 5 as a solution to gtkam -1
Removing gtkam rather than change libgphoto2-2
Done
The following packages will be REMOVED:
gphoto2 gtkam libgphoto2-2 libgphoto2-port0 libsane sane-utils
0 packages upgraded, 0 newly installed, 6 to remove and 62 not upgraded.
Need to get 0B of archives.
I don't know whether this is due to a difference between the state of your
system and the state of mine, or whether it happens to be trying a different
solution first in this case. Send your /var/lib/dpkg/status file, and
describe the exact steps that you took leading up to this, including running
apt-get update, upgrading, installing, anything you did to the system.
--
- mdz
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