70 lines
2.0 KiB
Bash
Executable File
70 lines
2.0 KiB
Bash
Executable File
#!/bin/sh
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# Copyright, 2014 Scott Moser <smoser@ubuntu.com>
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see
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# <http://www.gnu.org/licenses/>.
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prereqs() {
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local o="/scripts/init-bottom/overlayroot" p=""
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# basically we run after overlayroot but do not depend on it
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for p in "$DESTDIR/" ""; do
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[ -e "$p$o" ] && echo "overlayroot" && return 0
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done
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}
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[ "$1" != "prereqs" ] || { prereqs; exit; }
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. /scripts/functions
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set -f
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PATH=/usr/sbin:/usr/bin:/sbin:/bin
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cmdline=""
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myopts=""
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if [ -f /proc/cmdline ]; then
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read cmdline < /proc/cmdline
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for tok in $cmdline; do
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[ "${tok#copymods=}" != "$tok" ] || continue
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myopts="${tok#copymods=}"
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done
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fi
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myver=$(uname -r)
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if [ ! -d "/lib/modules/$myver" ]; then
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log_warning_msg "Something odd, no /lib/modules/$myver in initramfs."
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exit 0
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fi
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[ -d "$rootmnt/lib/modules" ] || mkdir -p "$rootmnt/lib/modules" ||
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{ log_warning_msg "No /lib/modules in target. cannot help."; exit 0; }
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if [ -d "$rootmnt/lib/modules/$myver" ]; then
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if [ "${myopts#*force}" = "$myopts" ]; then
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exit 0
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else
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log_warning_msg "copying over existing modules! due to copymods=force"
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fi
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fi
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mount -t tmpfs copymods "$rootmnt/lib/modules" ||
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{ log_failure_msg "failed mount of tmpfs"; exit 0; }
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mv "/lib/modules/$myver" "$rootmnt/lib/modules" ||
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{ log_failure_msg "failed to copy modules to target root"; exit 0; }
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ln -s "$rootmnt/lib/modules/$myver" "/lib/modules/$myver" ||
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{ log_failure_msg "failed to link to modules"; exit 0; }
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# vi: ts=4 noexpandtab
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