[9fans] verifying CD vs. iso image

[9fans] verifying CD vs. iso image

[pac]

> Just tried.  Looks like this is the right mantra
>
>  sum file
>  cdfs
>  sum /mnt/cd/d000
>
> Otherwise you're also comparing the fixated directory.Yes. I ended up with
the same after some experimenting yesterday. My mistake was to search for
raw data in /dev/sdD0/Now I can use cmp, sum,  or whatever I wish. Thanks
for response, and excuse my silliness!++pac.

Re: [9fans] verifying CD vs. iso image

[boyd, rounin]

err, cmp?

     http://plan9.bell-labs.com/magic/man2html?man=cmp&sect=1

Re: [9fans] verifying CD vs. iso image

[David Presotto]

Just tried.  Looks like this is the right mantra

	sum file
	cdfs
	sum /mnt/cd/d000

Otherwise you're also comparing the fixated directory.

Re: [9fans] verifying CD vs. iso image

[David Presotto]

[-- Attachment #1: Type: text/plain, Size: 44 bytes --]

How about
	sum file
	sum /dev/sdD0/data
?

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From: "pac" <cej@gli.cas.cz>
To: "9fans" <9fans@cse.psu.edu>
Subject: [9fans] verifying CD vs. iso image
Date: Mon, 7 Jul 2003 14:05:55 +0200
Message-ID: <003201c34480$1e46e090$2a8be793@gli.cas.cz>

Hi folks,

can you show me how to compare (checksums of) CD-R versus its original iso
image (used to be copied to /mnt/cd/wd)?
I don't know how to access the raw data on the CD  (I feel that it should be
some trick with with /dev/sdC1/ctl or  /dev/sdC1/raw ... )


Also, I've got trapped in (presumably easy to write) script to compare all
files in two (intentionally identical) directories. Just something like cmp
filelist1 filelist2. I ended up with ugly enough catting everything together
and piping it to cmp   :-(((
Beg for your help here, too. I must be an idiot, or what.


Cheers,
++pac.

[9fans] verifying CD vs. iso image

[pac]

Hi folks,

can you show me how to compare (checksums of) CD-R versus its original iso
image (used to be copied to /mnt/cd/wd)?
I don't know how to access the raw data on the CD  (I feel that it should be
some trick with with /dev/sdC1/ctl or  /dev/sdC1/raw ... )


Also, I've got trapped in (presumably easy to write) script to compare all
files in two (intentionally identical) directories. Just something like cmp
filelist1 filelist2. I ended up with ugly enough catting everything together
and piping it to cmp   :-(((
Beg for your help here, too. I must be an idiot, or what.


Cheers,
++pac.