On Sat, Nov 20, 2010 at 01:21:57AM +0200, Peter Pentchev wrote: > On Fri, Nov 19, 2010 at 06:35:19PM +0100, Matthias Apitz wrote: > > El día Friday, November 19, 2010 a las 06:21:09PM +0100, Hans Petter > > Selasky escribió: > > > > > > > Can you dump the data into hex using hexdump -C and show us the > > > > > difference. > > > > > > > > Note: the output of the dd(1) is around 3.8 GByte. I compared the 1st > > > > 2.000.000 lines of the hexdump: no diff; any better tool to show the 1st > > > > block which differs? > > > > > > > > > Usually you would use bs=65536 (Does that change anything)? > > > > > > > > Same result: they differ :-( > > > > > > > > matthias > > > > > > bsdiff ? > > > > This will not work with such big files (requires 8x memory of the file): > > > > I was thinking in a tool just reading each file block by block, > > comparing the blocks and noting the 1st diff with block offset number. > > (some 10 lines of C code :-)) > > Errrr... are you thinking of cmp(1), maybe with the -l option? :)
And just for the record, at http://devel.ringlet.net/textproc/block-summarize/ or git://gitorious.org/block-summarize/block-summarize.git you may find a simple utility that summarizes cmp(1)'s output per block. (oof, I just found out that I've still left the default blocksize at 32; will change that for version 0.02, for now there's the -b option :) G'luck, Peter -- Peter Pentchev r...@space.bg r...@ringlet.net r...@freebsd.org PGP key: http://people.FreeBSD.org/~roam/roam.key.asc Key fingerprint FDBA FD79 C26F 3C51 C95E DF9E ED18 B68D 1619 4553 Nostalgia ain't what it used to be.
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