On Sat, Dec 23, 2006 at 01:57:15AM -0300, Alejandro wrote: > Marc Shapiro wrote: > >Alejandro wrote: > >>Paul Johnson wrote: > >>>http://wiki.ursine.ca/Top_posting > >>>>Is it possible to use "dd" if I have to disks with the same size but > >>>>different models like this: > >>>Yes, it is. As long as the disks are the same size, the rest is just > >>>details. > >>Dear Paul, just a last short question: suppose I have a hard disk A > >>with Linux and I want to clon this disk (A) to a new hard disk B; is > >>it possible to boot into single user from A and then execute "dd if=A > >>of=B" ?? > >> > >>Or do I have to get another machine with a hard disk C with Linux and > >>from here execute "dd if=A of=B" ??? > >How about booting from a live CD, and then issuing the dd command > >(after making sure that neither disk is mounted). > Finally: booting from a live CD and executing "dd if=A of=B"...is there > any risk of lost of data or damage of the source hard disk (A) using the > "dd" command ??? Because it's the firt time I need to clon an entire > disk of a data base server with very critical data...I'm scared :( well there's always *some* risk, but not anymore than any other method of duplicating the data. Lesson learned though, figure out backup strategy *before* the disk is full of critical data... right? ;-) Of much more concern, I think, in your situation is making the the resulting copy is accurate and usable. A
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