1#!/bin/sh 2# 3# Copyright 2014 John-Mark Gurney 4# All rights reserved. 5# 6# Redistribution and use in source and binary forms, with or without 7# modification, are permitted provided that the following conditions 8# are met: 9# 1. Redistributions of source code must retain the above copyright 10# notice, this list of conditions and the following disclaimer. 11# 2. Redistributions in binary form must reproduce the above copyright 12# notice, this list of conditions and the following disclaimer in the 13# documentation and/or other materials provided with the distribution. 14# 15# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 16# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 17# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 18# ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 19# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 20# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 21# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 22# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 23# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 25# SUCH DAMAGE. 26# 27# $FreeBSD$ 28# 29 30# PROVIDE: growfs 31# BEFORE: sysctl 32# KEYWORD: firstboot 33 34# This allows us to distribute a image 35# and have it work on essentially any size drive. 36# 37# TODO: Figure out where this should really be ordered. 38# I suspect it should go just after fsck but before mountcritlocal. 39# 40 41. /etc/rc.subr 42 43name="growfs" 44desc="Grow root partition to fill device" 45start_cmd="growfs_start" 46stop_cmd=":" 47rcvar="growfs_enable" 48 49growfs_start () 50{ 51 echo "Growing root partition to fill device" 52 rootdev=$(df / | tail -n 1 | awk '{ sub("/dev/", "", $1); print $1 }') 53 if [ x"$rootdev" = x"${rootdev%/*}" ]; then 54 # raw device 55 rawdev="$rootdev" 56 else 57 rawdev=$(glabel status | awk '$1 == "'"$rootdev"'" { print $3 }') 58 if [ x"$rawdev" = x"" ]; then 59 echo "Can't figure out device for: $rootdev" 60 return 61 fi 62 fi 63 64 sysctl -b kern.geom.conftxt | awk ' 65{ 66 lvl=$1 67 device[lvl] = $3 68 type[lvl] = $2 69 idx[lvl] = $7 70 parttype[lvl] = $13 71 if (dev == $3) { 72 for (i = 1; i <= lvl; i++) { 73 # resize 74 if (type[i] == "PART") { 75 pdev = device[i - 1] 76 cmd[i] = "gpart resize -i " idx[i] " " pdev 77 if (parttype[i] == "GPT") 78 cmd[i] = "gpart recover " pdev " ; " cmd[i] 79 } else if (type[i] == "LABEL") { 80 continue 81 } else { 82 print "unhandled type: " type[i] 83 exit 1 84 } 85 } 86 for (i = 1; i <= lvl; i++) { 87 if (cmd[i]) 88 system(cmd[i]) 89 } 90 exit 0 91 } 92}' dev="$rawdev" 93 gpart commit "$rootdev" 94 growfs -y /dev/"$rootdev" 95} 96 97load_rc_config $name 98run_rc_command "$1" 99