1#!/bin/ksh -p 2# 3# CDDL HEADER START 4# 5# The contents of this file are subject to the terms of the 6# Common Development and Distribution License (the "License"). 7# You may not use this file except in compliance with the License. 8# 9# You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10# or http://www.opensolaris.org/os/licensing. 11# See the License for the specific language governing permissions 12# and limitations under the License. 13# 14# When distributing Covered Code, include this CDDL HEADER in each 15# file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16# If applicable, add the following below this CDDL HEADER, with the 17# fields enclosed by brackets "[]" replaced with your own identifying 18# information: Portions Copyright [yyyy] [name of copyright owner] 19# 20# CDDL HEADER END 21# 22 23# Copyright 2006 Sun Microsystems, Inc. All rights reserved. 24# Use is subject to license terms. 25 26# ident "%Z%%M% %I% %E% SMI" 27 28format=ufs 29ALT_ROOT= 30NO_AMD64= 31 32BOOT_ARCHIVE=platform/i86pc/boot_archive 33 34export PATH=$PATH:/usr/sbin:/usr/bin:/sbin 35 36# 37# Parse options 38# 39while getopts R: OPT 2> /dev/null 40do 41 case $OPT in 42 R) ALT_ROOT="$OPTARG" 43 if [ "$ALT_ROOT" != "/" ]; then 44 echo "Creating ram disk for $ALT_ROOT" 45 fi 46 ;; 47 ?) echo Usage: ${0##*/}: [-R \<root\>] 48 exit ;; 49 esac 50done 51 52if [ -x /usr/bin/mkisofs -o -x /tmp/bfubin/mkisofs ] ; then 53 format=isofs 54fi 55 56# 57# mkisofs on s8 doesn't support functionality used by GRUB boot. 58# Use ufs format for boot archive instead. 59# 60release=`uname -r` 61if [ "$release" = "5.8" ]; then 62 format=ufs 63fi 64 65shift `expr $OPTIND - 1` 66 67if [ $# -eq 1 ]; then 68 ALT_ROOT="$1" 69 echo "Creating ram disk for $ALT_ROOT" 70fi 71 72function cleanup 73{ 74 umount -f "$rdmnt" 2>/dev/null 75 lofiadm -d "$rdfile" 2>/dev/null 76 rm -fr "$rddir" 2> /dev/null 77} 78 79function getsize 80{ 81 # Estimate image size, add %10 overhead for ufs stuff 82 total_size=0 83 for file in $filelist 84 do 85 if [ -e "$ALT_ROOT/$file" ] ; then 86 du -sk "$ALT_ROOT/$file" | read size name 87 (( total_size += size )) 88 fi 89 done 90 (( total_size += total_size * 10 / 100 )) 91} 92 93function create_ufs 94{ 95 # should we exclude amd64 binaries? 96 [ $is_amd64 -eq 0 ] && NO_AMD64="-name amd64 -prune" 97 98 99 mkfile ${total_size}k "$rdfile" 100 lofidev=`lofiadm -a "$rdfile"` 101 newfs $lofidev < /dev/null 2> /dev/null 102 mkdir "$rdmnt" 103 mount -F mntfs mnttab /etc/mnttab > /dev/null 2>&1 104 mount -o nologging $lofidev "$rdmnt" 105 106 # do the actual copy 107 cd "/$ALT_ROOT" 108 109 find $filelist -print $NO_AMD64 2> /dev/null | \ 110 cpio -pdum "$rdmnt" 2> /dev/null 111 umount "$rdmnt" 112 lofiadm -d "$rdfile" 113 rmdir "$rdmnt" 114 115 # Check if gzip exists in /usr/bin, so we only try to run gzip 116 # on systems that have gzip. Then run gzip out of the patch to 117 # pick it up from bfubin or something like that if needed. 118 # 119 if [ -x /usr/bin/gzip ] ; then 120 gzip -c "$rdfile" > "$ALT_ROOT/$BOOT_ARCHIVE-new" 121 else 122 cat "$rdfile" > "$ALT_ROOT/$BOOT_ARCHIVE-new" 123 fi 124} 125 126function create_isofs 127{ 128 # should we exclude amd64 binaries? 129 [ $is_amd64 = 0 ] && NO_AMD64="-m amd64" 130 131 # create image directory seed with graft points 132 mkdir "$rdmnt" 133 files= 134 isocmd="mkisofs -quiet -graft-points -dlrDJN -relaxed-filenames $NO_AMD64" 135 for path in $filelist 136 do 137 if [ -d "$ALT_ROOT/$path" ]; then 138 isocmd="$isocmd $path/=\"$ALT_ROOT/$path\"" 139 mkdir -p "$rdmnt/$path" 140 elif [ -f "$ALT_ROOT/$path" ]; then 141 files="$files $path" 142 fi 143 done 144 cd "/$ALT_ROOT" 145 find $files 2> /dev/null | cpio -pdum "$rdmnt" 2> /dev/null 146 isocmd="$isocmd \"$rdmnt\"" 147 rm -f "$errlog" 148 149 # Check if gzip exists in /usr/bin, so we only try to run gzip 150 # on systems that have gzip. Then run gzip out of the patch to 151 # pick it up from bfubin or something like that if needed. 152 # 153 if [ -x /usr/bin/gzip ] ; then 154 ksh -c "$isocmd" 2> "$errlog" | \ 155 gzip > "$ALT_ROOT/$BOOT_ARCHIVE-new" 156 else 157 ksh -c "$isocmd" 2> "$errlog" > "$ALT_ROOT/$BOOT_ARCHIVE-new" 158 fi 159 160 if [ -s "$errlog" ]; then 161 grep Error: "$errlog" >/dev/null 2>&1 162 if [ $? -eq 0 ]; then 163 grep Error: "$errlog" 164 rm -f "$ALT_ROOT/$BOOT_ARCHIVE-new" 165 fi 166 fi 167 rm -f "$errlog" 168} 169 170# 171# get filelist 172# 173filelist=`cat "$ALT_ROOT/boot/solaris/filelist.ramdisk"` 174if [ -f "$ALT_ROOT/etc/boot/solaris/filelist.ramdisk" ]; then 175 filelistI=`cat "$ALT_ROOT/etc/boot/solaris/filelist.ramdisk"` 176fi 177filelist=`echo $filelist $filelistI | sort -u` 178 179# 180# decide if cpu is amd64 capable 181# 182prtconf -v /devices | grep CPU_not_amd64 > /dev/null 2>&1 183is_amd64=$? 184 185scratch=tmp 186 187if [ $format = ufs ] ; then 188 # calculate image size 189 getsize 190 191 # check to see if there is sufficient space in tmpfs 192 # 193 tmp_free=`df -b /tmp | tail -1 | awk '{ printf ($2) }'` 194 (( tmp_free = tmp_free / 2 )) 195 196 if [ $total_size -gt $tmp_free ] ; then 197 # assumes we have enough scratch space on $ALT_ROOT 198 scratch="$ALT_ROOT" 199 fi 200fi 201 202rddir="/$scratch/create_ramdisk.$$.tmp" 203rdfile="$rddir/rd.file" 204rdmnt="$rddir/rd.mount" 205errlog="$rddir/rd.errlog" 206 207# make directory for temp files safely 208rm -rf "$rddir" 209mkdir "$rddir" 210 211# Clean up upon exit. 212trap 'cleanup' EXIT 213 214echo "updating $ALT_ROOT/$BOOT_ARCHIVE...this may take a minute" 215 216if [ $format = "ufs" ]; then 217 create_ufs 218else 219 create_isofs 220fi 221 222# sanity check the archive before moving it into place 223# the file type check also establishes that the file exists at all 224# 225ARCHIVE_SIZE=`du -k "$ALT_ROOT/$BOOT_ARCHIVE-new" | cut -f 1` 226file "$ALT_ROOT/$BOOT_ARCHIVE-new" | grep gzip > /dev/null 227 228if [ $? = 1 ] && [ -x /usr/bin/gzip ] || [ $ARCHIVE_SIZE -lt 5000 ]; then 229 echo "update of $ALT_ROOT/$BOOT_ARCHIVE failed" 230 rm -rf "$rddir" 231 exit 1 232fi 233 234# 235# For the diskless case, hardlink archive to /boot to make it 236# visible via tftp. /boot is lofs mounted under /tftpboot/<hostname>. 237# NOTE: this script must work on both client and server 238# 239grep "[ ]/[ ]*nfs[ ]" "$ALT_ROOT/etc/vfstab" > /dev/null 240if [ $? = 0 ]; then 241 mv "$ALT_ROOT/$BOOT_ARCHIVE-new" "$ALT_ROOT/$BOOT_ARCHIVE" 242 rm -f "$ALT_ROOT/boot/boot_archive" 243 ln "$ALT_ROOT/$BOOT_ARCHIVE" "$ALT_ROOT/boot/boot_archive" 244 rm -rf "$rddir" 245 exit 246fi 247 248lockfs -f "/$ALT_ROOT" 249mv "$ALT_ROOT/$BOOT_ARCHIVE-new" "$ALT_ROOT/$BOOT_ARCHIVE" 250lockfs -f "/$ALT_ROOT" 251 252rm -rf "$rddir" 253