Re: dd / netcat / md5sums: hashes do not match

From: solana (solana_nexus_at_hotmail.com)
Date: 09/18/03 

Date: 18 Sep 2003 07:03:00 -0700

bugs@pu.net (Mark Hittinger) wrote in message news:<nN7ab.489447$Ho3.82885@sccrnsc03>...
> solana_nexus@hotmail.com (solana) writes:
> >B# nc -l -p 6789 | dd of=./hda1.img bs=512 conv=noerror
> >A# dd if=/dev/hda1 bs=512 conv=noerror | nc <B's IP> 6789
> >however, the md5 hashes dont check out / do not match up.
> >Any idea what I am doing wrong?
>
> conv=noerror,sync
>
> Later
>
> Mark Hittinger
> bugs@pu.net

ran it as

B# nc -l -p 6789 | dd of=./hda1.img bs=512 conv=noerror,sync
A# dd if=/dev/hda1 bs=512 conv=noerror,sync | nc <B's IP> 6789

Still gives different md5sum results.

btw. the 'records' output also differs.

On A:
3084416+0 records in
3084416+0 records out

On B (the receiver):
2323232+1140752 records in
3463984+0 records out

btw filesizes:

A: df -k
/dev/hda1 -> 1k-blocks=1517920 (which would make 1517920*1024
=1554350080 bytes if I am correct)

B: ls -l
hda1.img -> 1773559808 bytes

wonder if that would matter..

however, A is a live system. Cant unmount hda1 since it happens to be
the / part. cant boot into single user since I then wouldnt have
network conn, i.e. not be able to transfer the file.

am i just SOL?

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