7.1-RELEASE-i386-dvd1.iso & SHA256

z3n · Jan 6, 2009

Hi all.

I downloaded:

Code:

ftp://ftp.freebsd.org/pub/FreeBSD/ISO-IMAGES-i386/7.1/7.1-RELEASE-i386-dvd1.iso.gz
ftp://ftp.freebsd.org/pub/FreeBSD/ISO-IMAGES-i386/7.1/CHECKSUM.MD5
ftp://ftp.freebsd.org/pub/FreeBSD/ISO-IMAGES-i386/7.1/CHECKSUM.SHA256

and then

Code:

$
$ gunzip 7.1-RELEASE-i386-dvd1.iso.gz
$
$ md5sum -c CHECKSUM.MD5
...
7.1-RELEASE-i386-dvd1.iso: OK
...
$
$ sha256sum -c CHECKSUM.SHA256
...
7.1-RELEASE-i386-dvd1.iso: FAILED
...
$

I need to download the DVD again? For example from the torrent?

ale · Jan 6, 2009

What gunzipping it and trying again?

Code:

$ gunzip -c 7.1-RELEASE-i386-dvd1.iso.gz > 7.1-RELEASE-i386-dvd1.iso
$ sha256 7.1-RELEASE-i386-dvd1.iso 
SHA256 (7.1-RELEASE-i386-dvd1.iso) = 303be4ce844f0cb18aa38a41988dc5fba960427dbcc69263410308176cb5875f

gnemmi · Jan 6, 2009

ON a side note ... where did you get sha256sum ... I can't find it in here

Code:

[gonzalo@inferna ~]% make search name=sha256sum -C /usr/ports/
[gonzalo@inferna ~]%

Thanks

ale · Jan 6, 2009

gnemmi said:
ON a side note ... where did you get sha256sum ... I can't find it in here

Code:

[gonzalo@inferna ~]% make search name=sha256sum -C /usr/ports/ [gonzalo@inferna ~]%

Thanks

linux?

gnemmi · Jan 6, 2009

FreeBSD?

ale · Jan 6, 2009

What I was meaning is - is he doing it from linux?
emulators/linux_base-f8 has it

ale · Jan 6, 2009

You can find it also in sysutils/coreutils, that is the port of some utilities commonly used in linux, as gsha256sum.

gnemmi · Jan 6, 2009

Thanks ale, it's working now

The only quirk is that the bin is called "gsha256sum" instead of plain "sha256sum"

Thanks for your informative post

Andrius · Jan 6, 2009

Or you could just use sha256(1) from base system without reinventing the wheel.

ale · Jan 6, 2009

gnemmi asked about sha256sum but not about md5sum so I thought he was just curios about the former.
Probably because he as just the latter but installed from his linux_base.
With my [post=8029]post[/post] I was replaying to gnemmi supposing that z3n was checking the image from linux while he was probably asking because he was running md5sum from a linux_base package without sha256sum.

EDIT:
One advantage of md5sum or sha256sum over the corresponding FreeBSD implementation is the -c option to automatically check the sum against the ones reported in a file as z3n showed.

gnemmi · Jan 6, 2009

ale said:
EDIT:
One advantage of md5sum or sha256sum over the corresponding FreeBSD implementation is the -c option to automatically check the sum against the ones reported in a file as z3n showed.

That was it ...
I used md5 and sha256 but I'm tired of checking their output against CHECKSUM.MD5 and CHECKSUM.SHA256 .. so -c was all I needed ... (I dont want to check long undecipherable strings against other long undechiperable strings ... an "ok" does just fine

)

If you by any chance know how to get md5 and sha256 work as md5sum/sha256sum -c please let me know

Yet still: thanks ale for the hints

ale · Jan 6, 2009

gnemmi said:
If you by any chance know how to get md5 and sha256 work as md5sum/sha256sum -c please let me know

I don't know. Anyway creating a shell script for that should be very easy!

gnemmi said:
Yet still: thanks ale for the hints

You're welcome!

gnemmi · Jan 7, 2009

ale said:
I don't know. Anyway creating a shell script for that should be very easy!

Probably .. but adding a -c to md5 and sha256 shouldn't, theoretically, be that hard to do .. and seems like a much cleaner implmentation .. let alone a downright useful command line option

ezeaguerre · Apr 8, 2009

Give it a try: http://ezeaguerre.googlepages.com/md5.tar.bz2

Inside the tar archive there's a "patch.txt" file with the patch... and the standalone files if you want them. The patch should be applied in /usr/src/sbin/md5.

gnemmi · Apr 21, 2009

Has anyone else tried this patch?
It's _really_ is usefull !
It works flawlessly in here.
Any chance to get this into base md5 ???