usr/src/psm/stand/bootblks/common/mkbb.sh

   1 #!/bin/ksh
   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 2007 Sun Microsystems, Inc.  All rights reserved.
  24 # Use is subject to license terms.
  25 #
  26
  27 # defaults
  28 bblen=7680
  29 rdlen=256
  30 totlen=7680
  31
  32 while getopts b:r:e: a; do
  33         case $a in
  34         b) bblen=$OPTARG;;
  35         r) rdlen=$OPTARG;;
  36         e) extra=$OPTARG
  37            totlen=15872;;
  38         ?) printf "Usage: %s: [ -b bb_len ] [ -r rd_len ] boot_fcode ramdisk_fcode bootblk\n" $0
  39            exit -1;;
  40         esac
  41 done
  42 shift $(($OPTIND - 1))
  43
  44 #
  45 # check boot code and ramdisk code for size overflow
  46 #
  47 rdoff=$(($bblen - $rdlen))
  48
  49 bbsize=$(ls -l $1 | awk -e '{ print $5 }')
  50 if [ $bbsize -gt $rdoff ]; then
  51     printf "$1 must be smaller than $rdoff\n"
  52     exit -1
  53 fi
  54
  55 rdsize=$(ls -l $2 | awk -e '{ print $5 }')
  56 if [ $rdsize -gt $rdlen ]; then
  57     printf "$1 must be smaller than $rdlen\n"
  58     exit -1
  59 fi
  60
  61 #
  62 # make the bootblk
  63 #
  64 mkfile -n $totlen $3
  65 chmod 644 $3
  66 dd if=$1 of=$3 conv=notrunc bs=1
  67 dd if=$2 of=$3 conv=notrunc bs=1 oseek=$rdoff
  68
  69 #
  70 # extended bootblk for zfs debug
  71 #
  72 if [ $totlen -gt $bblen ]; then
  73     extsize=$(ls -l $extra | awk -e '{ print $5 }')
  74     if [ $extsize -gt 16384 ]; then
  75         printf "$1 must be smaller than 16k\n"
  76         exit -1
  77     fi
  78     dd if=$extra of=$3 conv=notrunc bs=1 oseek=$bblen
  79 fi
  80
  81 exit 0