# **HEP_OSlibs meta-package for Ubuntu 16.04 (heposlibs for xenial)**
HEP_OSlibs is a meta-package that captures the Linux OS dependencies
of the software of the four LHC experiments.
This [README-ubuntu1604.md](README-ubuntu1604.md)
is the documentation page for HEP_OSlibs
on Ubuntu 16.04 (xenial) systems.
- It is maintained in the [ubuntu1604](/../ubuntu1604)
branch of this project on gitlab.cern.ch.
- For a general overview of HEP_OSlibs on all supported platforms,
please refer to the generic [master/README.md](/../master/README.md)
file in the master branch.
## Git tags and Debian package names and versions
Debian package names and versions for HEP_OSlibs on Ubuntu
follow the [Debian naming policies](https://www.debian.org/doc/debian-policy/#source) and
[Debian version policies](https://www.debian.org/doc/debian-policy/#version).
- On Ubuntu, the name of the HEP_OSlibs meta-package is heposlibs,
lowercase and consistent with Debian naming policies.
- The "upstream_version" part of the package version
is derived from the corresponding RedHat release for el7.
- The "debian_revision" part of the package version
starts at 1 each time the upstream_version is increased.
- To distinguish the meta-deb's for different Ubuntu versions,
which need different dependencies,
the debian_revision ends with an OS-specific suffix
(".xenial" for Ubuntu 16.04).
Each new release of the meta-package
is assigned a new tag in this gitlab project.
- On Ubuntu, the gitlab tag is equal to the full version number
of the Debian package, of the form "upstream_version-debian_revision".
- All gitlab tags for Ubuntu 16.04 thus end with ".xenial" (just like
tags for RedHat SLC6 or CC7 end with ".el6" or ".el7", respectively).
- As an example, the gitlab tag for the latest release
heposlibs_7.2.14-1.xenial_amd64.deb is 7.2.14-1.xenial.
- You may **browse here all [tags](/../tags?search=xenial) of heposlibs
for Ubuntu 16.04 (xenial).**
Additional details specific to heposlibs on Ubuntu can be found
in the [README.Debian](/../ubuntu1604/files/README.Debian) file.
## 32-bit and 64-bit dependencies
The meta-package is designed to be installed
on Ubuntu 64-bit (amd64).
Currently, **only a 64-bit meta-deb
with 64-bit package dependencies is built on Ubuntu.**
Installing this meta-package will only pull in 64-bit dependencies.
## Current release: 7.2.14-1.xenial
The latest stable release of heposlibs for Ubuntu 16.04
is [7.2.14-1.xenial](/../7.2.14-1.xenial).
*Ongoing work on other release candidates currently in QA is described in the
[ubuntu1604/QA-ubuntu1604.md](/../ubuntu1604/QA-ubuntu1604.md) page.*
### Installation
The 64-bit meta-package for the latest release
7.2.14-1.xenial of heposlibs for Ubuntu 16.04 is available
from the [downloads](/../7.2.14-1.xenial/downloads) area
of the gitlab repository for the corresponding gitlab tag.
In the [workflow](/../7.2.14-1.xenial/workflow.md) for this relase,
the meta-package was uploaded to the gitlab repository
from the artifacts area of the gitlab CI job that created it.
To download the meta-deb using a direct link
and install it on your system, simply execute the following:
```bash
wget https://gitlab.cern.ch/linuxsupport/rpms/HEP_OSlibs/raw/7.2.14-1.xenial/downloads/heposlibs_7.2.14-1.xenial_amd64.deb
sudo apt-get install ./heposlibs_7.2.14-1.xenial_amd64.deb
```
### Contents
The direct dependencies for the latest
release 7.2.14-1.xenial of heposlibs for Ubuntu 16.04
are declared in the corresponding Debian control file,
which is available in gitlab:
- the Debian control file used to build the package:
see [heposlibs.ctl](/../7.2.14-1.xenial/heposlibs.ctl)
Lists of direct and indirect dependencies have also been prepared
while testing the meta-package in the gitlab CI,
on a system running a minimal Docker image of `ubuntu:xenial`.
The following six package lists for this release are available in gitlab:
- heposlibs direct dependencies, as a list
(from `apt-cache depends`):
see [heposlibs.amd64.dependencies-direct.txt](/../7.2.14-1.xenial/dependencies/heposlibs.amd64.dependencies-direct.txt)
- heposlibs recursive dependencies, as a list
(from `apt-rdepends`):
see [heposlibs.amd64.dependencies-recursive-flat.txt](/../7.2.14-1.xenial/dependencies/heposlibs.amd64.dependencies-recursive-flat.txt)
- heposlibs installed packages, as a list
(from `apt list --installed`, before and after installation):
see [heposlibs.amd64.dependencies-installed.txt](/../7.2.14-1.xenial/dependencies/heposlibs.amd64.dependencies-installed.txt)
- heposlibs installed packages, as a list, with sizes in kbytes
(from `dpkg-query -Wf '${binary:Package} ${Installed-Size}\n'`,
before and after installation):
see [heposlibs.amd64.dependencies-installed-size.txt](/../7.2.14-1.xenial/dependencies/heposlibs.amd64.dependencies-installed-size.txt)
- heposlibs installed packages, as a list, with version number
(from `dpkg-query -Wf '${binary:Package} ${Version}\n'`,
before and after installation):
see [heposlibs.amd64.dependencies-installed-nvra.txt](/../7.2.14-1.xenial/dependencies/heposlibs.amd64.dependencies-installed-nvra.txt)
- list of all packages present after heposlibs installation,
with version number
(from `dpkg-query -Wf '${binary:Package} ${Version}\n'`,
after installation):
see [heposlibs.amd64.all-installed-nvra.txt](/../7.2.14-1.xenial/dependencies/heposlibs.amd64.all-installed-nvra.txt)
The six package lists mentioned above,
and additional information including the following files,
are also available for download as gitlab CI
[artifacts](https://gitlab.cern.ch/linuxsupport/rpms/HEP_OSlibs/builds/artifacts/7.2.14-1.xenial-testing/browse/build?job=deploy_job):
- heposlibs recursive dependencies, as a tree (from `apt-rdepends`):
download [heposlibs.amd64.dependencies-recursive-tree.txt](https://gitlab.cern.ch/linuxsupport/rpms/HEP_OSlibs/builds/artifacts/7.2.14-1.xenial-testing/raw/build/heposlibs.amd64.dependencies-recursive-tree.txt?job=deploy_job)
- heposlibs installation log:
download [heposlibs.amd64.installation-log.txt](https://gitlab.cern.ch/linuxsupport/rpms/HEP_OSlibs/builds/artifacts/7.2.14-1.xenial-testing/raw/build/heposlibs.amd64.installation-log.txt?job=deploy_job)
### Changelog
Read the changelog for release 7.2.14-1.xenial in the
[changelog](/../7.2.14-1.xenial/files/changelog)
file.
These are based on the upstream developments for CentOS7/el7
(see [el7/README-el7.md](/../el7/README-el7.md)
for the [el7 changelog](/../el7/README-el7.md#changelog)).
## Updates (for developers)
This meta-package for Ubuntu 16.04 is no longer supported.
No further requests for updates will be accepted.
## Contact
Please contact the [heposlibs-dev](mailto:heposlibs-dev@cern.ch)
mailing list if you have any questions about this meta-package.
## License
Copyright 2009-2021 CERN.
Licensed under [LGPLv3](https://www.gnu.org/licenses/lgpl-3.0.txt)
or (at your option) any later version.
See [COPYRIGHT.txt](COPYRIGHT.txt) for more details.