APT 1.4.8 unable to resolve dependencies (possible regression wrt 1.4.6)
Hi,
I build Debian-based filesystem images for embedded devices. By "image"
I mean a regular Debian 9.x (stretch) filesystem created with
debootstrap with some 3rd party packages installed on top of it. The
filesystem is converted into a *.iso image and burned into the NAND of
an embedded device.
The 3rd party software shipped with an image features some proprietary
Java application, that is (currently) compatible with JRE version 7
only, thus I need openjdk-7-jre package installed in my images. Since
openjdk-7-jre is not available in Debian 9, I use Debian 8.x (jessie)
mirror as a second sources.list entry. So what I do is basically:
1. debootstrap from an official Debian stable mirror
2. add official Debian oldstable mirror to /etc/apt/sources.list
3. apt-get update
4. apt-get install openjdk-7-jre
The above procedure used to work with apt 1.4.6, i.e. the packages that
openjdk-7-jre depends upon (214 additional packages) were pulled in and
installed, which is what I expected:
root@stretch-i386:~# apt -v
apt 1.4.6 (i386)
root@stretch-i386:~# apt-get install openjdk-7-jre
Reading package lists... Done
Building dependency tree... Done
The following additional packages will be installed:
[...]
The following NEW packages will be installed:
[...]
The following packages will be upgraded:
[...]
1 upgraded, 214 newly installed, 0 to remove and 0 not upgraded.
Need to get 146 MB of archives.
After this operation, 529 MB of additional disk space will be used.
Do you want to continue? [Y/n]
With apt 1.4.8 this does not work anymore - apt cannot resolve the
dependencies and fails:
root@stretch-i386:~# apt -v
apt 1.4.8 (i386)
root@stretch-i386:~# apt-get install openjdk-7-jre
Reading package lists... Done
Building dependency tree... Done
Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.
The following information may help to resolve the situation:
The following packages have unmet dependencies:
openjdk-7-jre : Depends: openjdk-7-jre-headless (=
7u111-2.6.7-1~deb8u1) but it is not going to be installed
E: Unable to correct problems, you have held broken packages.
What has changed from apt 1.4.6 to 1.4.8 that rendered my use case
unsupported? Is this behavior desired? What can I do to continue with my
workflow which is now broken?
Thanks & regards,
Lukasz
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