IMG/cpio/ventoy/hook/pclos/disk_hook.sh

   1 #!/ventoy/busybox/sh
   2 #************************************************************************************
   3 # Copyright (c) 2020, longpanda <admin@ventoy.net>
   4 #
   5 # This program is free software; you can redistribute it and/or
   6 # modify it under the terms of the GNU General Public License as
   7 # published by the Free Software Foundation; either version 3 of the
   8 # License, or (at your option) any later version.
   9 #
  10 # This program is distributed in the hope that it will be useful, but
  11 # WITHOUT ANY WARRANTY; without even the implied warranty of
  12 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13 # General Public License for more details.
  14 #
  15 # You should have received a copy of the GNU General Public License
  16 # along with this program; if not, see <http://www.gnu.org/licenses/>.
  17 #
  18 #************************************************************************************
  19
  20 . /ventoy/hook/ventoy-hook-lib.sh
  21
  22 VTPATH_OLD=$PATH; PATH=$BUSYBOX_PATH:$VTOY_PATH/tool:$PATH
  23
  24 ventoy_os_install_device_mapper_by_unsquashfs() {
  25     vtlog "ventoy_os_install_device_mapper_by_unsquashfs $*"
  26
  27     vtKoExt=$(ventoy_get_module_postfix)
  28     vtlog "vtKoExt=$vtKoExt"
  29
  30     vtoydm -i -f $VTOY_PATH/ventoy_image_map -d $1 > $VTOY_PATH/iso_file_list
  31
  32     vtline=$(grep '[-][-] livecd.sqfs '  $VTOY_PATH/iso_file_list)
  33     sector=$(echo $vtline | awk '{print $(NF-1)}')
  34     length=$(echo $vtline | awk '{print $NF}')
  35
  36     vtoydm -E -f $VTOY_PATH/ventoy_image_map -d $1 -s $sector -l $length -o $VTOY_PATH/fsdisk
  37
  38     dmModPath="/lib/modules/$2/kernel/drivers/md/dm-mod.$vtKoExt"
  39     echo $dmModPath > $VTOY_PATH/fsextract
  40     vtoy_unsquashfs -d $VTOY_PATH/sqfs -n -q -e $VTOY_PATH/fsextract $VTOY_PATH/fsdisk
  41
  42     if [ -e $VTOY_PATH/sqfs${dmModPath} ]; then
  43         vtlog "success $VTOY_PATH/sqfs${dmModPath}"
  44         insmod $VTOY_PATH/sqfs${dmModPath}
  45     else
  46         false
  47     fi
  48 }
  49
  50
  51 ventoy_os_install_device_mapper() {
  52     vtlog "ventoy_os_install_device_mapper"
  53
  54     if grep -q 'device-mapper' /proc/devices; then
  55         vtlog "device-mapper module already loaded"
  56         return;
  57     fi
  58
  59     vtKerVer=$(uname -r)
  60     if ventoy_os_install_device_mapper_by_unsquashfs $1 $vtKerVer; then
  61         vtlog "unsquashfs success"
  62     else
  63         vterr "unsquashfs failed"
  64     fi
  65 }
  66
  67 wait_for_usb_disk_ready
  68
  69 vtdiskname=$(get_ventoy_disk_name)
  70 ventoy_os_install_device_mapper $vtdiskname
  71
  72 ventoy_udev_disk_common_hook "${vtdiskname#/dev/}2"
  73
  74 PATH=$VTPATH_OLD
  75
  76 set_ventoy_hook_finish
  77