dracut-ramdisk doesn't support ramdisk-install.d elements

[Frederic Lepied]

When creating a ramdisk using ramdisk-install.d elements with the dracut-ramdisk element, nothing is copied to the final ramdisk from dracut-ramdisk (only /init-func is copied).

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/142141

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/142141
Committed: https://git.openstack.org/cgit/openstack/diskimage-builder/commit/?id=75b34baa981267a3283033eac241d7d7943514dd
Submitter: Jenkins
Branch: master

commit 75b34baa981267a3283033eac241d7d7943514dd
Author: Erwan Velu <email address hidden>
Date: Tue Dec 16 16:54:15 2014 +0100

    dracut-ramdisk: fix support for elements with ramdisk-install.d

    Copy all of TMP_MOUNT_PATH into the ramdisk so that
    ramdisk-install.d actions are respected.

    Includes a workaround for a bug in Dracut that caused the copy
    to fail.

    Also moves init instead of copying it so we don't conflict with
    the Dracut init.

    Change-Id: Ia8d7b210369fe7eb7ab239cbdb7f96841104a35d
    Closes-Bug: 1403121