mirror of https://github.com/ventoy/Ventoy
longpanda
4 years ago
parent
c8e86938fe
commit
8cde5a4898
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#!/ventoy/busybox/sh
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#************************************************************************************
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# Copyright (c) 2020, longpanda <admin@ventoy.net>
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#
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# This program is free software; you can redistribute it and/or
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# modify it under the terms of the GNU General Public License as
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# published by the Free Software Foundation; either version 3 of the
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# License, or (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful, but
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# WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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# General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, see <http://www.gnu.org/licenses/>.
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#
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#************************************************************************************
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. /ventoy/hook/ventoy-hook-lib.sh
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if is_ventoy_hook_finished; then
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exit 0
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fi
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vtdiskname=$(get_ventoy_disk_name)
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if [ "$vtdiskname" = "unknown" ]; then
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vtlog "ventoy disk not found"
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PATH=$VTPATH_OLD
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exit 0
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fi
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ventoy_udev_disk_common_hook "${vtdiskname#/dev/}2" "noreplace"
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if ! [ -e $VTOY_DM_PATH ]; then
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blkdev_num=$($VTOY_PATH/tool/dmsetup ls | grep ventoy | sed 's/.*(\([0-9][0-9]*\),.*\([0-9][0-9]*\).*/\1 \2/')
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mknod -m 0666 $VTOY_DM_PATH b $blkdev_num
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fi
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# OK finish
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set_ventoy_hook_finish
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@ -0,0 +1,27 @@
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#!/ventoy/busybox/sh
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#************************************************************************************
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# Copyright (c) 2020, longpanda <admin@ventoy.net>
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#
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# This program is free software; you can redistribute it and/or
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# modify it under the terms of the GNU General Public License as
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# published by the Free Software Foundation; either version 3 of the
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# License, or (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful, but
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# WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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# General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, see <http://www.gnu.org/licenses/>.
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#
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#************************************************************************************
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. $VTOY_PATH/hook/ventoy-os-lib.sh
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if ! [ -d /dev ]; then
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$BUSYBOX_PATH/mkdir /dev
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fi
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$SED "1a\export ROOT=/dev/mapper/ventoy" -i /init
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$SED "/check_root \$device/i\ $BUSYBOX_PATH/sh $VTOY_PATH/hook/android/ventoy-disk.sh" -i /init
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@ -0,0 +1,77 @@
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#!/bin/sh
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size=1024
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fstype=ext4
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label=casper-rw
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print_usage() {
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echo 'Usage: CreatePersistentImg.sh [ -s size ] [ -t fstype ] [ -l LABEL ]'
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echo ' OPTION: (optional)'
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echo ' -s size in MB, default is 1024'
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echo ' -t filesystem type, default is ext4 ext2/ext3/ext4/xfs are supported now'
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echo ' -l label, default is casper-rw'
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echo ''
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}
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while [ -n "$1" ]; do
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if [ "$1" = "-s" ]; then
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shift
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size=$1
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elif [ "$1" = "-t" ]; then
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shift
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fstype=$1
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elif [ "$1" = "-l" ]; then
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shift
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label=$1
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else
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print_usage
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exit 1
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fi
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shift
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done
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# check label
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if [ -z "$label" ]; then
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echo "The label can NOT be empty."
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exit 1
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fi
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# check size
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if echo $size | grep -q "^[0-9][0-9]*$"; then
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if [ $size -le 1 ]; then
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echo "Invalid size $size"
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exit 1
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fi
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else
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echo "Invalid size $size"
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exit 1
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fi
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# check file system type
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# nodiscard must be set for ext2/3/4
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# -K must be set for xfs
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if echo $fstype | grep -q '^ext[234]$'; then
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fsopt='-E nodiscard'
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elif [ "$fstype" = "xfs" ]; then
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fsopt='-K'
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else
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echo "unsupported file system $fstype"
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exit 1
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fi
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# 00->ff avoid sparse file
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dd if=/dev/zero bs=1M count=$size | tr '\000' '\377' > persistence.img
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sync
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freeloop=$(losetup -f)
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losetup $freeloop persistence.img
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mkfs -t $fstype $fsopt -L $label $freeloop
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sync
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losetup -d $freeloop
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