+#!/bin/sh
+
+print_usage() {
+ echo 'Usage: ExtendPersistentImg.sh file size'
+ echo ' file persistent dat file'
+ echo ' size extend size in MB'
+ echo 'Example:'
+ echo ' sh ExtendPersistentImg.sh ubuntu.dat 2048'
+ echo ''
+}
+
+if [ -z "$1" -o "$1" = "-h" ]; then
+ print_usage
+ exit 1
+fi
+
+if [ -z "$2" ]; then
+ print_usage
+ exit 1
+fi
+
+file=$1
+size=$2
+
+if [ ! -f "$file" ]; then
+ echo "$file not exist."
+ exit 1
+fi
+
+if echo $size | grep -q "[^0-9]"; then
+ print_usage
+ exit 1
+fi
+
+fsize=$(stat -c '%s' $file)
+
+fsmod=$(expr $fsize % 1024)
+if [ $fsmod -ne 0 ]; then
+ echo "File size of $file is not aligned by 1MB, please check."
+ exit 1
+fi
+
+
+fsMB=$(expr $fsize / 1024 / 1024)
+total=$(expr $fsMB + $size)
+
+magic=$(hexdump -n3 -e '3/1 "%02X"' $file)
+if [ "$magic" = "584653" ]; then
+ if which xfs_growfs >/dev/null 2>&1; then
+ cmd=xfs_growfs
+ else
+ echo 'xfs_growfs not found, please install xfsprogs first'
+ exit 1
+ fi
+else
+ if which resize2fs >/dev/null 2>&1; then
+ cmd=resize2fs
+ else
+ echo 'resize2fs not found, please install e2fsprogs first'
+ exit 1
+ fi
+fi
+
+
+echo "Extend dat file... (current is ${fsMB}MB, append ${size}MB, total ${total}MB)"
+dd if=/dev/zero bs=1M count=$size status=none >> "$file"
+sync
+
+freeloop=$(losetup -f)
+losetup $freeloop "$file"
+
+if [ "$cmd" = "resize2fs" ]; then
+ echo "Extend ext filesystem by resize2fs ..."
+ echo "resize2fs $freeloop ${total}M"
+ e2fsck -f $freeloop
+ resize2fs $freeloop ${total}M
+ ret=$?
+else
+ echo "Extend xfs filesystem by xfs_growfs ..."
+
+ tmpdir=$(mktemp -d)
+ mount $freeloop $tmpdir
+ xfs_growfs $freeloop
+ ret=$?
+ umount $tmpdir && rm -rf $tmpdir
+fi
+
+losetup -d $freeloop
+
+echo ""
+if [ $ret -eq 0 ]; then
+ echo "======= SUCCESS ========="
+else
+ echo "======= FAILED ========="
+fi
+echo ""
+
projects / Ventoy.git / commitdiff