On 29.11.2011 08:09, Loving, Kent wrote:
I was wondering if GRUB can ‘install’ an image using dd before it is booted.
The image will be in file, previously created by the dd command, and stored in
a partition that is not the first partition. GRUB would have to execute an
equivalent of ‘dd’ to dump the image from the file to the first partition and
then boot it. To keep this from being too easy, the image is windows XP, and
the image file is on an NTFS partition.
The goal is to allow a ‘snapshot’ of a working OS to be saved and then allow a
return to that snapshot later.
This is currently not implemented other than in my local experiments. In
your case you're better off booting a small GNU/Linux to do the
operations. GRUB is not designed to handle writing a whole partition.
While it is able to do so (otherwise it would be a bug), it doesn't use
some of available acceleration so GNU/Linux is faster on writing data.
The overhead of booting GNU/Linux is small compared to the time needed
to copy over the image.
Note: I haven't done any benchmarks so this isn't confirmed. but
probably is the case
Kent Loving
Kent Loving, 425-315-3043
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--
Regards
Vladimir 'φ-coder/phcoder' Serbinenko
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