sig_cloud/diskimage-builder
11
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity

Merge "Update apt-preferences element README from free text to table formatting"

Browse source
This commit is contained in:
Jenkins 2015-10-12 19:26:06 +00:00 committed by Gerrit Code Review
commit bf4c57dfb8
1 changed files with 15 additions and 5 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

20
elements/apt-preferences/README.rst
View file

@ -2,10 +2,20 @@
apt-preferences
===============
This element creates package pins for apt systems if packages need to be held
back.
This element generates the APT preferences file based on the provided manifest
provided by the :doc:`../manifests/README` element.
For APT based systems, you specify package priorities in the apt preferences file.
This element reads the given manifest file, specified in `DIB_DPKG_MANIFEST`, to
set pins to enable pinning of older versions for the given packages.
The APT preferences file can be used to control which versions of packages will
be selected for installation. APT uses a priority system to make this
determination. For more information about APT preferences, see the apt_preferences(5)
man page.
Environment Variables
---------------------
DIB_DPKG_MANIFEST:
:Required: No
:Default: None
:Description: The manifest file to generate the APT preferences file from.
:Example: ``DIB\_DPKG\_MANIFEST=~/image.d/dib-manifests/dib-manifest-dpkg-image``