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Re: How to compare clone of a partition with source partition

Cross-posted to 2 groups.

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On 15/01/2012 8:39 AM, Arno wrote:
> In comp.sys.ibm.pc.hardware.storage AndyHancock<andymhancock@gmail.com>  wrote:
>> I just cloned two partitions from a resident HDD to an auxiliary
>> Momentus XL HDD in an enclosure that is connected to the computer via
>> eSATA.  Is there a way to compare each cloned partition with its
>> original for integrity?  If this were just a file, I'd use a unix/
>> cygwin utility like diff or cmp.  However, it is a partition.
>
> If it is a bit-wise exact clone, cmp still works, but doing
> md5sum or sha1sum on the whole partitions is faster.
> On mimatch it tells you almost nothing though.
>
> Or you can mount both, and do a file-tree comparison.
> I do the following for that:
>
> cd<dir1>; tar cf - .| (cd<dir2>; tar df -)
>
> Arno

I use an utility called Duplicate Cleaner (http://is.gd/7XlwgM) for file 
comparisons. I like it because it offers a range of options for content 
comparison (byte-by-byte, MD5, SHA-1, & SHA-256). I find the fastest 
method is usually byte-by-byte, as it'll stop the comparison the moment 
it finds a mismatched byte and not bother with the rest of the 
comparison of those files. The other methods would involve taking a full 
reading the whole file and then generating a checksum at the end.

	Yousuf Khan

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Thread

How to compare clone of a partition with source partition AndyHancock <andymhancock@gmail.com> - 2012-01-14 20:56 -0800
  Re: How to compare clone of a partition with source partition "Rod Speed" <rod.speed.aaa@gmail.com> - 2012-01-15 16:18 +1100
    Re: How to compare clone of a partition with source partition AndyHancock <andymhancock@gmail.com> - 2012-01-14 21:42 -0800
  Re: How to compare clone of a partition with source partition Arno <me@privacy.net> - 2012-01-15 13:39 +0000
    Re: How to compare clone of a partition with source partition AndyHancock <andymhancock@gmail.com> - 2012-01-15 11:43 -0800
      Re: How to compare clone of a partition with source partition Arno <me@privacy.net> - 2012-01-15 20:23 +0000
        Re: How to compare clone of a partition with source partition AndyHancock <andymhancock@gmail.com> - 2012-01-15 12:49 -0800
          Re: How to compare clone of a partition with source partition Arno <me@privacy.net> - 2012-01-16 01:18 +0000
            Re: How to compare clone of a partition with source partition AndyHancock <andymhancock@gmail.com> - 2012-01-15 20:52 -0800
              Re: How to compare clone of a partition with source partition AndyHancock <andymhancock@gmail.com> - 2012-01-16 21:49 -0800
                Re: How to compare clone of a partition with source partition "Rod Speed" <rod.speed.aaa@gmail.com> - 2012-01-17 19:50 +1100
                Re: How to compare clone of a partition with source partition Mark F <mark53916@gmail.com> - 2012-01-17 15:27 -0500
                Re: How to compare clone of a partition with source partition AndyHancock <andymhancock@gmail.com> - 2012-01-17 21:30 -0800
                Re: How to compare clone of a partition with source partition AndyHancock <andymhancock@gmail.com> - 2012-01-17 21:19 -0800
                Re: How to compare clone of a partition with source partition "Rod Speed" <rod.speed.aaa@gmail.com> - 2012-01-18 17:04 +1100
                Re: How to compare clone of a partition with source partition AndyHancock <andymhancock@gmail.com> - 2012-01-17 22:46 -0800
                Re: How to compare clone of a partition with source partition "Rod Speed" <rod.speed.aaa@gmail.com> - 2012-01-18 20:42 +1100
                Re: How to compare clone of a partition with source partition AndyHancock <andymhancock@gmail.com> - 2012-01-18 21:28 -0800
                Re: How to compare clone of a partition with source partition "Rod Speed" <rod.speed.aaa@gmail.com> - 2012-01-20 06:27 +1100
                Re: How to compare clone of a partition with source partition AndyHancock <andymhancock@gmail.com> - 2012-01-19 21:07 -0800
    Re: How to compare clone of a partition with source partition Yousuf Khan <bbbl67@spammenot.yahoo.com> - 2012-01-17 04:00 -0500
      Re: How to compare clone of a partition with source partition AndyHancock <andymhancock@gmail.com> - 2012-01-17 21:33 -0800
        Re: How to compare clone of a partition with source partition Yousuf Khan <bbbl67@spammenot.yahoo.com> - 2012-01-19 11:37 -0500
          Re: How to compare clone of a partition with source partition "Rod Speed" <rod.speed.aaa@gmail.com> - 2012-01-20 06:34 +1100
          Re: How to compare clone of a partition with source partition AndyHancock <andymhancock@gmail.com> - 2012-01-19 21:17 -0800
            Re: How to compare clone of a partition with source partition Yousuf Khan <bbbl67@spammenot.yahoo.com> - 2012-01-25 10:53 -0500
              Re: How to compare clone of a partition with source partition "Rod Speed" <rod.speed.aaa@gmail.com> - 2012-01-26 06:16 +1100
          Re: How to compare clone of a partition with source partition willbill <postonNG@postonNG.net> - 2012-01-20 12:52 -0600
            Re: How to compare clone of a partition with source partition "Rod Speed" <rod.speed.aaa@gmail.com> - 2012-01-21 08:49 +1100
              Re: How to compare clone of a partition with source partition AndyHancock <andymhancock@gmail.com> - 2012-01-22 21:29 -0800
                Re: How to compare clone of a partition with source partition "Rod Speed" <rod.speed.aaa@gmail.com> - 2012-01-24 05:32 +1100
                Re: How to compare clone of a partition with source partition AndyHancock <andymhancock@gmail.com> - 2012-01-24 17:54 -0800
                Re: How to compare clone of a partition with source partition willbill <postonNG@postonNG.net> - 2012-01-24 12:22 -0600
                Re: How to compare clone of a partition with source partition AndyHancock <andymhancock@gmail.com> - 2012-01-24 18:05 -0800
                Re: How to compare clone of a partition with source partition AndyHancock <andymhancock@gmail.com> - 2012-01-24 18:57 -0800

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