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

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#!/ventoy/busybox/sh
#************************************************************************************
# Copyright (c) 2020, longpanda <admin@ventoy.net>
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License as
# published by the Free Software Foundation; either version 3 of the
# License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, see <http://www.gnu.org/licenses/>.
#
#************************************************************************************
. /ventoy/hook/ventoy-hook-lib.sh
VTPATH_OLD=$PATH; PATH=$BUSYBOX_PATH:$VTOY_PATH/tool:$PATH
ventoy_os_install_device_mapper_by_unsquashfs() {
vtlog "ventoy_os_install_device_mapper_by_unsquashfs $*"
vtKoExt=$(ventoy_get_module_postfix)
vtlog "vtKoExt=$vtKoExt"
vtoydm -i -f $VTOY_PATH/ventoy_image_map -d $1 > $VTOY_PATH/iso_file_list
vtline=$(grep '[-][-] livecd.sqfs ' $VTOY_PATH/iso_file_list)
sector=$(echo $vtline | awk '{print $(NF-1)}')
length=$(echo $vtline | awk '{print $NF}')
vtoydm -E -f $VTOY_PATH/ventoy_image_map -d $1 -s $sector -l $length -o $VTOY_PATH/fsdisk
dmModPath="/lib/modules/$2/kernel/drivers/md/dm-mod.$vtKoExt"
echo $dmModPath > $VTOY_PATH/fsextract
vtoy_unsquashfs -d $VTOY_PATH/sqfs -n -q -e $VTOY_PATH/fsextract $VTOY_PATH/fsdisk
if [ -e $VTOY_PATH/sqfs${dmModPath} ]; then
vtlog "success $VTOY_PATH/sqfs${dmModPath}"
insmod $VTOY_PATH/sqfs${dmModPath}
else
false
fi
}
ventoy_os_install_device_mapper() {
vtlog "ventoy_os_install_device_mapper"
if grep -q 'device-mapper' /proc/devices; then
vtlog "device-mapper module already loaded"
return;
fi
vtKerVer=$(uname -r)
if ventoy_os_install_device_mapper_by_unsquashfs $1 $vtKerVer; then
vtlog "unsquashfs success"
else
vterr "unsquashfs failed"
fi
}
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wait_for_usb_disk_ready
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vtdiskname=$(get_ventoy_disk_name)
ventoy_os_install_device_mapper $vtdiskname
ventoy_udev_disk_common_hook "${vtdiskname#/dev/}2"
PATH=$VTPATH_OLD