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.