[EMAIL PROTECTED] wrote:
>[EMAIL PROTECTED] wrote:
>
>> Now, if it would be a question of backig up the entire partition, it would
>> be simple with dd, but in Win boxes usually one partition covers the
>> entire disk. But if only 200MB of a 20GB partition is used there is no
>> idea in backing up all the empty space.
>
>How about compression?  Isn't the empty space zeroed?

You can't rely on that, but you can do it yourself.  From one of my scripts:

  # fill the free space on the second partition with zeros
  mount -t vfat /dev/hda2 /mnt/local
  zero_blocks=`df /mnt/local | tail -n 1 | awk '{print $4}'`
  dd if=/dev/zero of=/mnt/local/zero bs=1024 count=${zero_blocks} 2>/dev/null
  rm -f /mnt/local/zero
  umount /mnt/local

Other tools you might want to look at are:

   Partition Image         http://www.partimage.org
   Make CD-ROM Recovery    http://sourceforge.net/projects/mkcdrec

Ron

Reply via email to