FM / init-bottom

/usr/share/initramfs-tools/scripts/init-bottom/

/usr/share/initramfs-tools/scripts/init-bottom

Name	Size	Mode	Actions
cloud-initramfs-dyn-netconf	5203	0755	edit dl rm
copymods	2069	0755	edit dl rm
lvm2	370	0755	edit dl rm
overlayroot	26580	0755	edit dl rm
plymouth	190	0755	edit dl rm
udev	611	0755	edit dl rm

Edit: /usr/share/initramfs-tools/scripts/init-bottom/copymods (2069B)

#!/bin/sh
#  Copyright, 2014 Scott Moser <smoser@ubuntu.com>
#
#  This program is free software: you can redistribute it and/or modify
#  it under the terms of the GNU General Public License as published by
#  the Free Software Foundation, either version 3 of the License, or
#  (at your option) any later version.
#
#  This program is distributed in the hope that it will be useful,
#  but WITHOUT ANY WARRANTY; without even the implied warranty of
#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
#  GNU General Public License for more details.
#
#    You should have received a copy of the GNU General Public License
#    along with this program.  If not, see
#    <http://www.gnu.org/licenses/>.

prereqs() {
	local o="/scripts/init-bottom/overlayroot"  p=""
	# basically we run after overlayroot but do not depend on it
	for p in "$DESTDIR/" ""; do
		[ -e "$p$o" ] && echo "overlayroot" && return 0
	done
}

[ "$1" != "prereqs" ] || { prereqs; exit; }

. /scripts/functions

set -f
PATH=/usr/sbin:/usr/bin:/sbin:/bin

cmdline=""
myopts=""
if [ -f /proc/cmdline ]; then
	read cmdline < /proc/cmdline
	for tok in $cmdline; do
		[ "${tok#copymods=}" != "$tok" ] || continue
		myopts="${tok#copymods=}"
	done
fi
myver=$(uname -r)

if [ ! -d "/lib/modules/$myver" ]; then
	log_warning_msg "Something odd, no /lib/modules/$myver in initramfs."
	exit 0
fi

[ -d "$rootmnt/lib/modules" ] || mkdir -p "$rootmnt/lib/modules" ||
	{ log_warning_msg "No /lib/modules in target. cannot help."; exit 0; }

if [ -d "$rootmnt/lib/modules/$myver" ]; then
	if [ "${myopts#*force}" = "$myopts" ]; then
		exit 0
	else
		log_warning_msg "copying over existing modules! due to copymods=force"
	fi
fi

mount -t tmpfs copymods "$rootmnt/lib/modules" ||
	{ log_failure_msg "failed mount of tmpfs"; exit 0; }

mv "/lib/modules/$myver" "$rootmnt/lib/modules" ||
	{ log_failure_msg "failed to copy modules to target root"; exit 0; }

ln -s "$rootmnt/lib/modules/$myver" "/lib/modules/$myver" ||
	{ log_failure_msg "failed to link to modules"; exit 0; }

# vi: ts=4 noexpandtab

cmd: