On Tue, 2001-11-13 at 10:10, Yannick Ribau wrote:
> hi all,
>
> is it possible to make a "dd conv=noerror /dev/hda2 /dev/hda3" to have a
> complete backup of my root filesystem, then do a
> "dd conv=noerror /dev/hda3 /dev/hda2" to restore it, in case of a soft
> filesystem problem ?
>
> (both partitions have the exact same size)
On a live filesystem this is not too smart an idea, the block cache and
the live filesystem are not totally coherent - in fact depending on the
kernel version they can be totally incoherent (changes to one are
invisible in the other).
You at least need to do a remount readonly to make the disk
image stable - and this will fail if a file is open for writing
Steve
>
> Yannick.
>
--
Steve Lord voice: +1-651-683-3511
Principal Engineer, Filesystem Software email: lord@xxxxxxx
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