Ryan Brady 4ca059f9d9 Use $DISTRO_NAME instead of local lsb_release
The $DISTRO_NAME var is now set in all of the OS elements
in environment.d.  This patch removes the call to
lsb_release and instead uses the $DISTRO_NAME variable.

Change-Id: I7088eb88b6a3611fef5a21a6b62975876549465f
2014-06-26 16:47:21 -04:00
..
2014-05-10 11:17:29 +02:00
2014-06-04 14:17:22 +01:00
2014-05-10 11:17:29 +02:00

This is the ramdisk element.

Almost any user building a ramdisk will want to include this in their build, as it triggers many of the vital functionality from the basic diskimage-builder libraries (such as init script aggregation, busybox population, etc).

An example of when one might want to use this toolchain to build a ramdisk would be the initial deployment of baremetal nodes in a TripleO setup. Various tools and scripts need to be injected into a ramdisk that will fetch and apply a machine image to local disks. That tooling/scripting customisation can be easily applied in a repeatable and automatable way, using this element.

NOTE: ramdisks require 1GB minimum memory on the machines they are booting.

See the top-level README.md of the project, for more information about the mechanisms available to a ramdisk element.