# apt-get install --dry-run -t xenial-security systemd
Reading package lists... Done
Building dependency tree
Reading state information... Done
The following additional packages will be installed:
libpam-systemd libsystemd0
Suggested packages:
systemd-ui systemd-container
The following packages will be upgraded:
libpam-systemd libsystemd0 systemd
3 upgraded, 0 newly installed, 0 to remove and 221 not upgraded.
Inst libpam-systemd [229-4ubuntu7] (229-4ubuntu21.1
Ubuntu:16.04/xenial-security [amd64]) []
Inst libsystemd0 [229-4ubuntu7] (229-4ubuntu21.1 Ubuntu:16.04/xenial-security
[amd64]) [systemd:amd64 ]
Conf libsystemd0 (229-4ubuntu21.1 Ubuntu:16.04/xenial-security [amd64])
[systemd:amd64 ]
Inst systemd [229-4ubuntu7] (229-4ubuntu21.1 Ubuntu:16.04/xenial-security
[amd64])
Conf systemd (229-4ubuntu21.1 Ubuntu:16.04/xenial-security [amd64])
Conf libpam-systemd (229-4ubuntu21.1 Ubuntu:16.04/xenial-security [amd64])
# apt-get install --dry-run systemd=229-4ubuntu21.1
Reading package lists... Done
Building dependency tree
Reading state information... 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:
systemd : Depends: libsystemd0 (= 229-4ubuntu21.1) but 229-4ubuntu21.4 is to
be installed
Recommends: libpam-systemd but it is not going to be installed
E: Unable to correct problems, you have held broken packages.
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https://bugs.launchpad.net/bugs/1788486
Title:
apt behaviour with strict dependencies
To manage notifications about this bug go to:
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