备份一个Linux系统硬盘[Fedora环境]

#! /bin/sh
# backup total system to a Mirror Hard Disk
# written by Visual.Wei

rootdirlist=`ls /`
skiplist="mnt proc sys"
bskip="0"
mirrordsk=/dev/sdb
mntpoint=/mnt/mybakroot

makedir() {
 if [ ! -d $1 ] ; then
  echo $"create directory $1"
  mkdir -p $1
 else
  echo $"dir $1 already existing"
 fi
}

umnt() {
 if [ -e /proc/mounts ] ; then
  if grep $1 /proc/mounts > /dev/null ; then
   umount $1
   echo $"unmount device $1"
  fi
 fi
}

checkdisk() {
 if [ ! -e $1 ] ; then
  echo "Mirror Device $1 can not be found"
  return 1
 else
  return 0
 fi
}

if ! checkdisk "$mirrordsk" ; then
 exit 1
fi

umnt "$mirrordsk"1
umnt "$mirrordsk"5
umnt "$mirrordsk"6
umnt "$mirrordsk"3

echo $"Format ext3 partitions..."
if checkdisk "$mirrordsk"3 ; then
 mkfs.ext3 -L / "$mirrordsk"3 > /dev/null
else
 exit 1
fi

if checkdisk "$mirrordsk"1 ; then
 mkfs.ext3 -L /boot "$mirrordsk"1 > /dev/null
else
 exit 1
fi

if checkdisk "$mirrordsk"5 ; then
 mkfs.ext3 -L /var "$mirrordsk"5 > /dev/null
else
 exit 1
fi

if checkdisk "$mirrordsk"6 ; then
 mkfs.ext3 -L /home "$mirrordsk"6 > /dev/null
else
 exit 1
fi

echo $"Format swap partition"

if checkdisk "$mirrordsk"2 ; then
 mkswap -v1 -L newswap "$mirrordsk"2 > /dev/null
else
 exit 1
fi

makedir $mntpoint
echo $"mount root directory"
mount "$mirrordsk"3 $mntpoint

makedir $mntpoint/boot
makedir $mntpoint/var
makedir $mntpoint/home

echo $"mount other directories..."
mount "$mirrordsk"1 $mntpoint/boot
mount "$mirrordsk"5 $mntpoint/var
mount "$mirrordsk"6 $mntpoint/home

echo $"start copy system directories...It may takes very long time"
for i in $rootdirlist ; do
 bskip="0"
 for j in $skiplist ; do
  if [ "$i" == "$j" ] ; then
   echo $"skip $i"
   bskip="1"
   break
  fi
 done
 if [ "$bskip" == "0" ] ; then
  echo $"copy directory $i"
  cp -a /$i $mntpoint
 fi
done

echo $"create empty directories..."
for j in $skiplist ; do
 makedir $mntpoint/$j
done

echo $"please use ,then edit and "