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<H2><A NAME="s3">3.</A> <A HREF="faq.html#toc3">Partimage vs others</A></H2>
<H2><A NAME="ss3.1">3.1</A> <A HREF="faq.html#toc3.1">What does partimage give you over the following: clear the free blocks with DD, and copy with DD </A>
</H2>
<P>dd if=/dev/zero of=/mnt/filetmp ; rm /mnt/filetmp ; dd if=/dev/xxx | gzip > image_file.gz</P>
<P>
<UL>
<LI>1. Partimage is faster. You don't have to wait for "dd if=/dev/zero" first.
during the copy, free blocks are not read. Then, if 20 % of the partition is
used, partimage will avoid two access to 80 % of the free areas.
</LI>
<LI>2. There's a GUI (graphical user interface). It has a lot of advantages: you
can see the remaining time, the percentage of the copy, ... The Qt GUI in the
next version will be very nice and easy to use.
</LI>
<LI>3. Partimage can work on file systems which are not supported (stable write
support) by the Linux kernel, such as NTFS, BSD FFS, XFS/JFS in a non-patched
kernel. To run "dd if=/dev/zero", you need the write support in Linux.
</LI>
<LI>4. Partimage is made to be easy to use, and to replace commercial software
such as Ghost, Drive Image, ... and the user does not have to know many
command lines.
</LI>
<LI>5. Partimage has a lot of options, such as -V which allow th create a new
volume if space is missing. DD will show and error and abort.
</LI>
<LI>6. The network support allows to save an image file from a client, without
having to configure both client and server NFS. (Network File System). When
the multicast will be implemented, it will allow to restore X clients from 1
server, and DD can't do a such multicast copy.
</LI>
<LI>7. We provide root disk and bootcd. You can boot on it, if Linux is not
installed on your computer. They contains everything that is need (the LZO
compression in 0.7, which is very useful for big files). You don't have all
these tools on every boot rescue systems.</LI>
</UL>
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<H2><A NAME="ss3.2">3.2</A> <A HREF="faq.html#toc3.2">Any hope of a browser like utility to allow restoring individual files from the archives? Like Ghost Explorer?</A>
</H2>
<P>Sorry, Partition Image is not a high level program, like Ghost. Ghost makes a file copy, and we obtain a file
in a tar.gz archive, with other details (such as the boot sector). But Partimage works at a low level, as Drive Image: it
copies used blocks of the disk. So, it doesn't know where files are written, and cannot allow to see files in the
image without restoring. But maybe it will become possible in future versions. We will try to make partimage image files
mountable: a driver, such as the loop one, could allow us to make an image file be a block device. If you know how to write
block device drivers, please contact us.</P>
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