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[NMLUG] drive duplication/backup
On Tue, Feb 10, 2004 at 09:14:02PM -0700, Ed Heron wrote:
> From: "Peter Espen" <peter@espen.net>
>
> > > What is wrong with tar?
> > >
> > > We all know tar doesn't make a drive bootable. We also know that if
> you
> > > tar a partition (ie. tar c /dev/hda), when you untar, it doesn't resize
> the
> > > partition into the new size. Tar just isn't designed for that kind of
> > > thing.
> >
> > I think 'dd' and 'fdisk' are better tools for such things because they can
> > copy boot blocks and such, which would have saved you the need to do all
> > that Win95 boot disk stuff you describe below.
>
> Can dd change the size of the partition? Since it does an image copy, I
> was under the impression that the destination would then have to be 'fixed'
> for any change in number of blocks. Plus, the destination has to the same
> size or larger than the source, doesn't it?
I think that's right, you would need to use a ext2 resize tool.
>
> > ...
>
> > > The conclusion of all this is that I have a backup method for Win95,
> 98
> > > and ME that isn't Windows based. Also, with chroot, I can have a Linux
> > > partition make itself bootable.
> >
> > Technically, it's partially Windows based because your method needed the
> Win95
> > boot disk you describe above. Linux with 'fidks' and dd' can duplicate
> Windows
> > partitions and drives completely without needing any Windows software at
> all.
>
> Yes, but in most cases, you must use the OS in a native environment to
> convert a collection of files into a bootable system. Unless you have
> something that understands the rules. I've used Partition Magic to resize
> and move partitions around. However, considering my recent success, I may
> switch to tar.
>
> I think it may come down to what you are comfortable with.
Will simply copying the first x blocks of the device, then fdisk, then rewrite
those blocks be enough to save the windows bootblocks? Then use lilo after
the fact.
>
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--
James Hamilton
Southwest Cyberport
http://www.swcp.com
505-232-7992
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