Fixes problems found by set -eu and pipefail, including:
-Many unset variables
-Commands that can fail under normal circumstances, which breaks
with set -e. This change swallows those expected errors to allow
our existing error code to handle them.
-The dkms element was not finding Fedora kernel versions correctly.
This may be an issue for other distros too, but since Fedora was
working fine without this functionality I only changed it to print
a warning message rather than failing the build when it happens.
-The ramdisk init script will not be set -eu because if it fails
the result is a kernel panic, which can be tricky to debug.
However, in testing with set -e a few failing commands were found
and have been fixed in this patch.
Change-Id: I44cf98dfc80cfcaec54b88cc83be80a3dbf2cec3
This got removed accidentally in a recent consolidation of
install-packages. Adding it back so that -d support works again.
Closes-bug: #1287142
Change-Id: If17e613bc9bc0f808517edfa1506858d3b9dce54
All of the yum-based install-packages scripts are doing essentially
the same thing, so let's use one script for all of the elements
that depend on the yum element.
Change-Id: I49e8c9b44e41bcf4cb9fa820e8a9179754694a97
