#!/bin/sh
#
# Copyright 2014 John-Mark Gurney
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
# 1. Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in the
# documentation and/or other materials provided with the distribution.
#
# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
# ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
# SUCH DAMAGE.
#
# $FreeBSD$
#
# PROVIDE: growfs
# BEFORE: sysctl
# KEYWORD: firstboot
# This allows us to distribute an image
# and have it work on essentially any size drive.
#
# TODO: Figure out where this should really be ordered.
# I suspect it should go just after fsck but before mountcritlocal.
#
. /etc/rc.subr
name="growfs"
desc="Grow root partition to fill device"
start_cmd="growfs_start"
stop_cmd=":"
rcvar="growfs_enable"
growfs_start ()
{
echo "Growing root partition to fill device"
FSTYPE=$(mount -p | awk '{ if ( $2 == "/") { print $3 }}')
FSDEV=$(mount -p | awk '{ if ( $2 == "/") { print $1 }}')
case "$FSTYPE" in
ufs)
rootdev=${FSDEV#/dev/}
;;
zfs)
pool=${FSDEV%%/*}
rootdev=$(zpool list -v $pool | awk 'END { print $1 }')
;;
*)
echo "Don't know how to grow root filesystem type: $FSTYPE"
return
esac
if [ x"$rootdev" = x"${rootdev%/*}" ]; then
# raw device
rawdev="$rootdev"
else
rawdev=$(glabel status | awk '$1 == "'"$rootdev"'" { print $3 }')
if [ x"$rawdev" = x"" ]; then
echo "Can't figure out device for: $rootdev"
return
fi
fi
sysctl -b kern.geom.conftxt | awk '
{
lvl=$1
device[lvl] = $3
type[lvl] = $2
idx[lvl] = $7
parttype[lvl] = $13
if (dev == $3) {
for (i = 1; i <= lvl; i++) {
# resize
if (type[i] == "PART") {
pdev = device[i - 1]
cmd[i] = "gpart resize -i " idx[i] " " pdev
if (parttype[i] == "GPT")
cmd[i] = "gpart recover " pdev " ; " cmd[i]
} else if (type[i] == "LABEL") {
continue
} else {
print "unhandled type: " type[i]
exit 1
}
}
for (i = 1; i <= lvl; i++) {
if (cmd[i])
system(cmd[i])
}
exit 0
}
}' dev="$rawdev"
gpart commit "$rootdev"
case "$FSTYPE" in
ufs)
growfs -y /dev/"$rootdev"
;;
zfs)
zpool online -e $pool $rootdev
;;
esac
}
load_rc_config $name
run_rc_command "$1"
