Creating and restoring image backups
froller at tnclimited.com
Sat Sep 19 22:21:39 UTC 2009
J Bickhard wrote:
> Is this method fast?
> Jake (dats me)
> On Sat, Aug 1, 2009 at 1:34 PM, Dan Farrell <dan at spore.ath.cx> wrote:
>> On Sat, 1 Aug 2009 12:01:37 -0500
>> J Bickhard <jbickhard at gmail.com> wrote:
>>> I have a computer running Windows XP home edition, and have been
>>> trying (rather unsucessfully) to create a full-image backup of the
>>> 80GB harddrive onto my USB seagate 350(?) GB external hard drive. My
>>> question is this: is there a way, with the Ubuntu boot disk, to make
>>> this backup without installing Ubuntu on the computer in question.
>> The easiest way is to use dd.
>> dd if=/dev/windows-disk of=/mnt/big-disk/windows-disk.img
>> that should do it. or
>> dd if=/dev/windows-disk of=/mnt/big-disk/windows-disk.img &
>> while(killall -USR1 dd) do sleep 2; done;
>> then switch back to dd's terminal, if you want to see your progress.
>> You can put the image back the same way, except switch the if and of
>> artuments for dd.
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25 Mb/sec or 53.3 minutes [(80 Gb/25)/60]
This is the fastest through-put to a usb drive I have ever had and it
can get as low as 10 Mb/sec increasing the time to 133.3 minutes (2.2 hrs)
Also, increase the block size to 4096, and this will help speed things up.
dd if=/dev/sd[a-z] of=/media/disk/yourXPimage.img bs=4096
dd defaults to bs=512.
"Life is like linux, simple. If you are fighting it you are doing something wrong."
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