Public bug reported:
When an installed package adds a dependency that is not yet installed on
the system, this sometimes causes the package to not be installed,
depending on the origin containing the original candidate version.
I believe that the problem is in /usr/bin/unattended-upgrade, line 102.
Here a check is performed to prevent downgrades. However, as a side
effect it also prevents adjusting the candidate version for packages
that have not yet been installed (because pkg.is_upgradable is False for
packages that have not been installed).
This makes updating private packages using unattended-upgrades
troublesome, especially when new dependencies have been added. Currently
it requires repackaging the dependencies with a slightly higher version
number than what is in the main repository, and then hosting them on the
private repository, which is time consuming and error-prone. With the
included patch, it is sufficient to just host the same version on the
private repository.
** Affects: unattended-upgrades (Ubuntu)
Importance: Undecided
Status: New
** Patch added: "also_adjust_candidate_version_for_non_installed_packages.patch"
https://bugs.launchpad.net/bugs/1446552/+attachment/4380466/+files/also_adjust_candidate_version_for_non_installed_packages.patch
** Description changed:
When an installed package adds a dependency that is not yet installed on
the system, this sometimes causes the package to not be installed,
depending on the origin containing the original candidate version.
I believe that the problem is in /usr/bin/unattended-upgrade, line 102.
Here a check is performed to prevent downgrades. However, as a side
effect it also prevents adjusting the candidate version for packages
that have not yet been installed (because pkg.is_upgradable is False for
packages that have not been installed).
This makes updating private packages using unattended-upgrades
troublesome, especially when new dependencies have been added. Currently
it requires repackaging the dependencies with a slightly higher version
- number than what is in the main repository, and than hosting them on the
+ number than what is in the main repository, and then hosting them on the
private repository, which is time consuming and error-prone. With the
included patch, it is sufficient to just host the same version on the
private repository.
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https://bugs.launchpad.net/bugs/1446552
Title:
Unattended upgrades handles new dependencies inconsistently
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