Gentoo Archives: gentoo-user

From: 7v5w7go9ub0o <7v5w7go9ub0o@×××××.com>
To: for list <gentoo-user@l.g.o>
Subject: [gentoo-user] Re: Fast checksumming of whole partitions
Date: Sun, 06 Jun 2010 22:45:50
Message-Id: 4C0C248A.9000401@gmail.com
In Reply to: Re: [gentoo-user] Re: Fast checksumming of whole partitions by Joerg.Schilling@fokus.fraunhofer.de (Joerg Schilling)
1 On 06/06/10 15:47, Joerg Schilling wrote:
2 > 7v5w7go9ub0o<7v5w7go9ub0o@×××××.com> wrote:
3 >
4 >> On 06/05/10 16:11, Manuel Klemenz wrote:
5 >>> I'm calculating checksums over partitions just by calling #
6 >>> md5sum /dev/sda1 or for the complete disk (incl. partition table
7 >>> + all partitions) # md5sum /dev/sda
8 >>>
9 >>> that's it :) - works with any distro/liveDVD
10 >>>
11 >>
12 >> Yep...... don't have to fool with an oddball program (dcfldd). So
13 >> if you're dd'ing a disk, you need to:
14 >>
15 >> 1. dd the source to the destination. 2. md5sum the source 3. md5sum
16 >> the destination.
17 >
18 > Why not just call:
19 >
20 > sdd if=/dev/something bs=1m -md5 -onull
21
22 err...... what is sdd?
23
24 If it is significantly faster than dd/dcfldd, then sdd may be the magic
25 bullet! E.G. one would:
26
27 1. sdd if=/dev/something bs=xx -md5 -o /dev/somethingout
28 2. sdd if=/dev/somethingout bs=xx -md5 -o null
29
30 Of course, one might ask, "is it on Knopix?"

Replies

Subject Author
Re: [gentoo-user] Re: Fast checksumming of whole partitions Joerg.Schilling@fokus.fraunhofer.de (Joerg Schilling)