[buug] dd to clone

Bruce Ferrell bferrell at baywinds.org
Thu Mar 8 15:29:18 PST 2007


I'm not too sure about putting the MBR from one disk onto a dissimilar 
disk.  As I recall there may be stuff specific to the disk geometry... 
been a long time and I could be wrong there

John de la Garza wrote:
> This kind of gets back to me wanting to use dd.  From what I see this  
> is a gui to dd (and some other things like netcat).  I'm kind of in  
> need of a command line tool.  I only have a shell interface to work  with.
> 
> Although, if I play with this I may get some ideas from looking at  what 
> it does to image a drive.
> 
> 
> On Mar 8, 2007, at 2:17 PM, Bruce Ferrell wrote:
> 
>> true, no mbr.  got something different:
>>
>> http://air-imager.sourceforge.net/
>>
>> Just saw it today
>>
>> John de la Garza wrote:
>>
>>> This wont copy the MBR or the partition table.  I am looking for  a  
>>> way to clone a harddrive, not just a directory.
>>> On Mar 7, 2007, at 3:09 PM, Bruce Ferrell wrote:
>>>
>>>> use tar.  it'll give you an accurate copy independant of the   
>>>> underlying hardware.  something like this:
>>>>
>>>> tar cvf - <hda root> | (cd <hdb root> ; tar xvf -)
>>>>
>>>>
>>>>
>>>> John de la Garza wrote:
>>>>
>>>>> I have a linux box that is up and running in a production   
>>>>> environment.
>>>>> I want to reproduce the box for a backup server.  If I want to  use dd
>>>>> to copy the harddrive could I simply do something like:
>>>>> dd if=/dev/hda bs=1024k  of=/dev/hdb
>>>>> or must I know more about the hard drives and do some  
>>>>> calculations  for
>>>>> how much data to copy?
>>>>> hdb is greater than or equal to the size of hda in this case
>>>>> _______________________________________________
>>>>> Buug mailing list
>>>>> Buug at weak.org
>>>>> http://www.weak.org/mailman/listinfo/buug
> 
> 
> 



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