src/scripts/backupiso

   1 #!/bin/sh
   2 ###############################################################################
   3 #                                                                             #
   4 # IPFire.org - A linux based firewall                                         #
   5 # Copyright (C) 2007-2022  IPFire Team  <info@ipfire.org>                     #
   6 #                                                                             #
   7 # This program is free software: you can redistribute it and/or modify        #
   8 # it under the terms of the GNU General Public License as published by        #
   9 # the Free Software Foundation, either version 3 of the License, or           #
  10 # (at your option) any later version.                                         #
  11 #                                                                             #
  12 # This program is distributed in the hope that it will be useful,             #
  13 # but WITHOUT ANY WARRANTY; without even the implied warranty of              #
  14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the               #
  15 # GNU General Public License for more details.                                #
  16 #                                                                             #
  17 # You should have received a copy of the GNU General Public License           #
  18 # along with this program.  If not, see <http://www.gnu.org/licenses/>.       #
  19 #                                                                             #
  20 ###############################################################################
  21
  22 # FIXME: edit this lines before release
  23 IPFVER=2.29
  24 COREVER=$(cat /opt/pakfire/db/core/mine)
  25
  26 arch=$(uname -m)
  27
  28 case "${arch}" in
  29         aarch64|x86_64)
  30                 ;;
  31         *)
  32                 echo "Arch is not supported" >&2
  33                 exit 1
  34                 ;;
  35 esac
  36
  37 URL="https://downloads.ipfire.org/releases/ipfire-2.x/$IPFVER-core$COREVER/"
  38 ISO="ipfire-$IPFVER-core$COREVER-$arch.iso"
  39
  40 makeiso() {
  41         local dir="${1}"
  42         local output="${2}"
  43
  44         local args=
  45
  46         # Add EFI options when EFI image is present
  47         if [ -e "${dir}/boot/isolinux/efiboot.img" ]; then
  48                 args="${args} -eltorito-alt-boot -e boot/isolinux/efiboot.img -no-emul-boot"
  49         fi
  50
  51         # Compose ISO
  52         mkisofs -J -r -V "IPFire ${IPFVER} ${arch}" \
  53                 -b boot/isolinux/isolinux.bin -no-emul-boot -boot-load-size 4 -boot-info-table \
  54                 -c boot/isolinux/boot.catalog \
  55                 ${args} ${dir} > ${output}
  56
  57         # Add DOS paritition table
  58         if [ -e "${dir}/boot/isolinux/efiboot.img" ]; then
  59                 isohybrid --uefi ${output}
  60         else
  61                 isohybrid ${output}
  62         fi
  63
  64         return 0
  65 }
  66
  67 if [ -z $1 ]; then
  68         echo usage: $0 backup-file
  69         exit
  70 fi
  71
  72 TS=$1
  73
  74 mkdir -p /var/tmp/backupiso
  75 cd /var/tmp/backupiso
  76
  77 if [ ! -f ${ISO} ]
  78 then
  79         echo "Fetching ${URL}${ISO}"
  80         wget --quiet -c ${URL}${ISO}
  81 fi
  82
  83 echo "Fetching ${URL}${ISO}.b2"
  84 wget --quiet -O ${ISO}.b2 ${URL}${ISO}.b2
  85
  86 echo "Checking BLAKE2 checksum of ${ISO}"
  87 b2sum --status -c ${ISO}.b2
  88 if [ $? -eq 0 ] || [ $? -eq 24 ]
  89 then
  90         echo "BLAKE2 checksum is OK"
  91 else
  92         echo "BLAKE2 checksum mismatch"
  93         echo "Fetching again ${URL}${ISO}"
  94         wget --quiet -O ${ISO} ${URL}${ISO}
  95         echo "Checking BLAKE2 checksum of ${ISO} again"
  96         b2sum --status -c ${ISO}.b2
  97         if [ $? -eq 0 ] || [ $? -eq 24 ]
  98         then
  99                 echo "BLAKE2 checksum is OK"
 100         else
 101                 echo "BLAKE2 checksum mismatch"
 102                 echo "aborting backup because BLAKE2 checksum mismatch"
 103                 exit 1
 104         fi
 105 fi
 106 rm ${ISO}.b2
 107
 108 echo "Remastering iso"
 109 mkdir -p backupiso.tmp.${TS}
 110 mount -o loop ${ISO} backupiso.tmp.${TS}
 111 cp -pr backupiso.tmp.${TS} backupiso.${TS}
 112 umount backupiso.tmp.${TS}
 113 rm -r backupiso.tmp.${TS}
 114
 115 # Copy backup file to disk
 116 cp "/var/ipfire/backup/${TS}.ipf" "backupiso.${TS}/backup.ipf"
 117
 118 # Add a version tag
 119 touch "backupiso.${TS}/backup-${TS}.media"
 120
 121 echo "Running mkisofs"
 122 makeiso backupiso.${TS} $(basename ${ISO} .iso)-${TS}.iso
 123
 124 echo "Cleaning up"
 125 rm -rf backupiso.${TS}